Ssr Tech Spec Sec B

PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

TECHNICAL SPECIFICATIONS – SECTION B 1.0

GENERAL

1.1

In this section (Section B – Technical Specifications) , the Jabatan Keretapi Negeri Sabah shall be referred to or abbreviated as JKNS.

1.2

This specification shall be read together with the Statement of Needs, Section A of Technical Specifications, General Conditions, Special Conditions and other documents forming part of the Contract, including the Appendices.

1.3

The specification covers the design of the systems, the supply and installation of all materials and equipment required for the new optical fibre cable network, digital transmission system, PABX system, train radio system, GPS system, computerised train dispatching system, block and station signalling systems, automatic level crossing protection system, power supply system, earthing & surge protection system, road traffic lights, etc.

1.4

All measurements indicated in the drawings are approximate only. Tenderers are requested to visit the sites to ascertain the exact locations and measurements, which may differ from the drawings in Appendices due to site conditions and requirements.

1.5

It is the Contractor’s responsibility to communicate and to work with Local Authorities (JBA, SESB, JKR, STMB, District Councils, etc.) prior to and/or during the installation of cables (under the road crossing), train radio tower, level crossing protection system, road traffic light, etc., to avoid damaging the existing utilities, and to conform with the regulations and requirements of the local authorities, where applicable.

1.6

All work shall be carried out in such a manner that disturbances to railway operations are kept to the absolute minimum. Any existing signalling and communication equipment at the sites concerned shall remain in use until the new equipment installed under the Contract are ready to be commissioned.

2.0

COPPER CABLES (SIGNALLING)

2.1

The cable used for signalling purposes shall be a PVC insulated and bedded, galvanised steel-wire armoured, PVC, sheathed, multi-core copper cable conforming to MS 4.18.1975. The conductor diameter shall be not less than 1.12 mm and the insulation shall be rated for 600/1000V. The size of conductors actually used shall be adequate for reliable performance, taking into account the current flow, voltage drop, and prevailing temperatures.

2.2

Conductors within a multi-core cable which is used for signalling circuits, shall not be used for power supply purposes at voltages (between conductors) exceeding 110 Volts a.c (or 150 Volts d.c). Separate cables shall be used for power supply purposes where necessary.

2.3

The use of buried cable joints shall not be permitted. All cable ends shall be terminated and linked through the disconnection boxes.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

2.4

The minimum reserve of cores within any signalling cable or power cable shall amount to 25% of the cores actually in use or a minimum of 2 cores / pairs, whichever is higher. For the purpose of calculating the minimum reserve, any additional cores being provided for future use with regard to any specified purpose shall be deemed to be actually in use.

2.5

All wires used for internal wiring inside apparatus cases, interconnection between terminals and so forth, shall be of adequate size to handle currents to be carried and have sufficient mechanical strength. P.V.C. insulated copper wires rated for 660V will be acceptable. Stranded conductors shall be used.

3.0

COPPER CABLES (COMMUNICATION)

3.1

The design and construction shall comply with the British Standards Specification BS 3573:1972.

3.2

Construction of the cable shall be as follows :i)

Conductor

:

annealed copper

ii) Insulation

:

cellular polyethylene for type A cable

iii) Core structure

:

twinning or quadding

iv) Stranding

:

10 pair sub-unit; or according to BS 3573:1972

v) Filling

:

petroleum jelly

vi) Tape

:

polythene terepthalate and non-hygroscopic and nonwicking material

vii) Moisture barrier

:

a nominal 150µm aluminium tape applied longitudinally with an overlap of not less than 6.5mm.

viii) Sheath

:

polythene compound type 03C as per BS 6234

ix) Armouring

:

galvanised steel wire according to BS 3573: 1972.

x) Outer sheath

:

Polythene compound Type 03C as per BS 6234. The colour of outersheathing shall be black, achieved by adding appropriate quantities of carbon black during manufacture. The outer sheath shall be of such chemical composition so as to protect the sheath from attack by termites.

xi) Identification

:

A sequentially numbered cable length marker shall be printed on the outer sheath, at a regular interval of 1 metre for indication of cable length. The word “JKNS”, the year of manufacture and the

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

name of manufacturer shall be embosed at intervals of 1 metre along the outer sheath. xii) The number of different cable sizes shall be kept to a minimum and shall be of the preferred sizes of 10, 20 and 20+ pairs. xiii) The nominal diameter of the copper conductor shall be 0.63mm and 0.9mm. xiv) Conductors and conductor groups in the cable shall be separated from each other with clear markings. 3.3

3.4

The average d.c. loop resistance for a pair of conductors, at +20 degrees C shall not exceed the following values. Nominal diameter of conductor (mm)

Average loop resistance ohm/km

0.63

116

0.90

56

Minimum delivery lengths Number of quads or pairs

Minimum delivery length (metres)

5q or 10p

1000

10q or 20p

500

more than 20p

500

3.5

All copper cables shall be tested in accordance with the testing specification KI/SP/TS/I issue 1 dated 2.12.95 (See Appendix T54). The testing shall also be made to signalling cable, wherever applicable as per Appendix T54. All cable test results shall be submitted to KTMB / JKNS a minimum of four weeks prior to the planned bringing into service date of the cable. All cables shall be terminated on Krone insulation displacement connectors, type LSA or equivalent, in the equipment room.

3.6

For aerial cables going from PABX exchange / station to JKNS offices, staff quarters, or to level crossing gate huts, unfilled type may be allowed (depending on the area). However, all under the track and under the road crossings shall used petroleum jelly filled cable with connection boxes installed on telephone posts. Drop wires (4 pair type, etc.) shall never be allowed to be buried.

3.7

The requirements for the installation of aerial cables / drop wires shall be as per Appendix T1.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

4.0

OPTICAL FIBRE CABLES

4.1

The cable shall be Single Mode 24 cores, loose tube fibre with metallic armoured corrugated steel tape. The cable shall also be anti-rodent and suitable for duct installation.

4.2

The single mode fibres must be optimised for use in wavelength regions of around 1300nm and 1550nm.

4.3

The optical fibres shall be made of high-grade silica glass, single-mode, matched cladding and step index type.

4.4

The nominal value of the mode field diameter at 1300nm shall be 9.5µm. The mode field diameter shall not exceed the limit of ± 0.5µm of the nominal value.

4.5

The nominal cladding diameter shall be 125µm. The cladding diameter deviation shall not exceed the limit of ± 2.4 % of the nominal values.

4.6

The mode field concentricity error shall be less than 0.8µm.

4.7

The mode filed non-circularity shall be less than 6%.

4.8

The cladding non-circularity shall be less than 2%.

4.9

The cut-off wavelength of the primary coated fibre shall be within 1150nm to 1330nm.

4.10

The loss performance for the 1550nm shall be in accordance with CCITT Recommendation G.652 Clause 1.6 (or equivalent ITU-T standards).

4.11

The fibre shall consist of a high-grade silica glass core and a boro-silicate or equivalent cladding covered by a supporting glass substrate, operating with a light source wavelength in the 1300nm and 1550nm region.

4.12

Each optical fibre shall be given a primary coating of UV-cured acrylate or equivalent material. The diameter of the coating, physical and chemical properties of the material used for the coating and the best way of removing it if necessary is indicated in Appendix T2/a.

4.13

A secondary coating of UV-cured acrylate or equivalent material shall be extruded over the primary coated fibre, to reinforce and protect fibres for the cabling process. Special attention must be paid to the surface of the material, which is in contact with the fibre since the protective action of the fibre depends to a large degree on the nature of these surfaces. These jackets (surfaces) shall be sufficiently thick to give a tight protected fibre with an overall nominal diameter of approximately 0.25mm – 0.44mm.

4.14

Identification of Fibres

4.14.1 Each fibres shall be uniquely and easily identified by the use of colour code. The colours of the fibres shall be readily recognisable and have good colour fast property, which will not be affected or eroded by the filling compound.

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TECHNICAL SPECIFICATION - SECTION B

4.14.2 The colour coding of the fibres shall be as follows :TUBE NO.

TUBE COLOUR

FIBRE NUMBER

FIBRE COLOUR

1

RED

2

YELLOW

3

BLUE

4

GREEN

5

WHITE

6

NATURAL

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

RED YELLOW BLUE GREEN RED YELLOW BLUE GREEN RED YELLOW BLUE GREEN RED YELLOW BLUE GREEN RED YELLOW BLUE GREEN RED YELLOW BLUE GREEN

The Contractor may also propose fibre optic cable having 4 tubes with 6 fibres for each tube. The colour of the fibres shall follow the above colour sequence. 4.15

Attenuation Coefficient

4.15.1 The attenuation coefficient of the fibre shall be as follows:i)

For 1300nm region : Max. 0.4dB/km

ii) For 1550nm region : Max. 0.3dB/km 4.16

Chromatic Dispersion

4.16.1 Maximum magnitude of the chromatic dispersion coefficient shall be as follows:i)

3.5 ps/km/nm in the 1285 – 1300nm wavelength

ii) 18 ps/km/nm in the 1550nm wavelength 4.17

Tensile Strength

4.17.1 This test furnishes values of the failure strength on samples of optical fibre and is performed by breaking the fibre samples with a suitable tensile machine. The

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TECHNICAL SPECIFICATION - SECTION B

tensile strength of the completed cable shall be not less than 1000N. At this load, no significant fibre attenuation increase shall result. 4.18

The optical fibre cable shall be proof tested to 1% strain level with a dwell time of one second.

4.18.1 The optical fibre cable shall be stranded individually or in groups. The nonmetallic strength member shall be in the centre of the cable core and shall have a natural colour. 4.19

Central Strength

4.19.1 The material used for the cable strength member shall be fibre reinforced plastic (FRP). 4.20

Fillers

4.20.1 The make up may incorporate plastic fillers where necessary. The colour of the filler elements shall be black. 4.21

Core Wrapping

4.21.1 The cable core shall be completely covered with one or more layers of nonhygroscopic and non-wicking dielectric material. The covering shall be lapped or applied longitudinally. 4.22

Fillings

4.22.1 The interstices of the cable shall be completely filled with an approved compound after or during stranding operation and prior to the application of the core wrapping tape. 4.22.2 The filling compound shall be homogenous and uniformly mixed. The compound shall be colourless to facilitate easy fibre identification. 4.22.3 The filling compound shall be non-toxic and present no dermal hazards. 4.22.4 The filling compound shall be free from dirt, metallic particles and other foreign matter. 4.22.5 The compound shall have a nominal drip point in excess of 65 degrees Centigrade. 4.22.6 The filling compound shall not degrade the optical and mechanical properties of the jacketed fibres in anyway. 4.22.7 Test pieces of the filled cable shall meet the requirement of the test described below: 4.22.7.1 Water Penetration Test This test is applied to fully filled cables to check that all cable (or the core) is completely filled with compound to prevent water penetration. A portion of

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TECHNICAL SPECIFICATION - SECTION B

sheath is removed 3 metre from one end of the cable sample. The exposed cable core is then placed in the water, containing a sufficient quantity of water soluble fluorescent dye, for 72 hours at a temperature of 20 ± 5 degrees Centigrade. No dye shall be detected when the end of 3 metres length is examined with ultra violet light. Detail of the test is provided in Appendix T2/b. 4.22.7.2 Compound Flow Test This test is used to determine the drip point of the filling compound. A cable sample of 25cm length with sheath removed and cable core exposed shall be suspended in an air oven for a period of 24 hours at an temperature of 50 ± 5 degrees Centigrade. At the end of the test period, there shall be no evidence of dripping of compound from either the core or the sheath interfaces. Detail of the tests is provided in Appendix T2/c. 4.23

Sheath

4.23.1 The cable shall be sheathed with high molecular weight black polyethylene suitable in all respects for use in tropical climates. The radial thickness of the polyethylene sheath shall be approximately 2.0mm. The technical characteristics of the sheathing material are provided ini Appendix T2/d. 4.23.2 The sheath around the cable shall be reasonably circular, free from pinholes, joints, mended spots and other defects and able to provide adequate mechanical protection against impact and crushing while still allowing a maximum bending radius not larger than 18 times the cable outer diameter. 4.23.3 The sheath shall be embosed with words “JKNS FIBRE OPTIC CABLE” throughout the length of the cable. 4.24

Length Marker

4.24.1 The completed cable shall have sequentially numbered lengths markers at an interval of one metre along the outside of the cable sheath. 4.24.2 The number shall be dimensioned and spaced to produce good legibility and shall be approximately 4mm height. 4.24.3 The method of marking shall be by means of surface markings producing a clear distinguishable contrasting marking and shall have good resistance to abrasion and similar effects as found during cable installation. 4.25

Mechanical and Environment Test

4.25.1 The mechanical and environment test of the cable shall be in accordance with the following specifications and shall be verified by carrying out test, detail of which are specified in Appendix T2/e. 4.26

Tensile Strength

4.26.1 The tensile strength of the cable shall be in excess of 1000N. At this load, no residual fibre elongation and attenuation increase shall result. Detail of the tests is provided in Appendix T2/f.

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4.27

TECHNICAL SPECIFICATION - SECTION B

Crush Test

4.27.1 The crush resistance of the cable shall result in an increased in attenuation of less than 0.1 dB/km shall be in excess of 400 N/cm. The manufacturer shall present data showing the typical dependent of crush test. Detail of the tests is provided in Appendix T2/g. 4.28

Bend Test

4.28.1 The cable shall be unwound and four turns shall be wrapped in a close helix around a mandrel of diameter equal to 18 times the cable diameter. The turns shall be applied at a uniform rate of one revolution in about 5 seconds and with sufficient tension to ensure that the specimen contours the mandrel. The turns shall be unwound and the cycle repeated 10 times. Final measurement shows no change to optical characteristics of the cable. Detail of the tests is provided in Appendix T2/h. 4.29

Impact Test

4.29.1 The optical fibre cable shall be able to withstand impact. The value of the starting energy, the number of impacts and the attenuation variations measured during the test until fibre breakage specified. Detail of the tests is provided in Appendix T2/i. 4.30

Anti Rodent Test

4.30.1 The anti rodent protective material shall be able to withstand rodent. 4.31

Drumming

4.31.1 The cable shall be wound on strong wooden drums in accordance with quality and construction. 4.31.2 The nominal drum length of optical fibre cable shall be 2000 + 200metres per drum. 4.32

Marking and Sealing

4.32.1 A band, approximately 25mm wide, shall be printed on the outer surface at each of the cable, 75mm from the end to indicate the direction of rotation of the colour scheme. The colour of the band shall be RED for a clockwise and GREEN for the anti-clockwise direction. Alternately, suitable coloured self adhesive tape may be used in lieu of the paint. 4.32.2 The ends of the cable shall be capped and sealed immediately with heat shrink after the tests have been completed. A pulling eye shall be installed for ease of installation. 4.33

Testing and Inspection

4.33.1 The cable shall be examined and tested at the manufacturer’s works by an inspecting officer appointed by JKNS/KTMB. The manufacturer shall provide all

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TECHNICAL SPECIFICATION - SECTION B

necessary facilities and afford the inspection officer any assistance he may require for this purpose. 4.33.2 Before the cable is to be dispatched from the factory, the relevant test certificates showing results of tests carried out in accordance with test specified herein shall be jointly signed by the representatives of JKNS/KTMB, Contractor and the manufacturer and four copies shall be immediately posted to KTMB. 4.34

Temperature Range i)

4.35

Temperature (storage)

:

- 30 deg. C to + 70 deg. C

ii) Temperature (operation) :

- 20 deg. C to + 60 deg. C

iii) Humidity

0% to 100%

:

Mechanical Closure

4.35.1 The Contractor shall provide jointing kits and joint closures necessary to complete the installation of optical fibre cable. The closure shall be Fujikura Mechanical Closure (FSCO) – SB Type, or equivalent. 4.35.2 The joint closure shall be of mechanical closure type, dimension not exceeding 340mm X 140mm X 126mm (L X W X H), and shall be equipped with fibre organisers of sufficient capacity to hold the fibres contained within various types of cable and the surplus length of fibres after splicing. The minimum hole for cable entry of each joint closure shall be 4. 4.35.3 The joint closure shall also be provided with strain relief bars for connection to the strength member s to prevent cable pull out. The closure design shall facilitate easy installation and re-enterable at very low cost. 4.35.4 The closure materials shall be chemically suitable with all cable components and shall be resistance to petroleum distillates, soil and fungus. 4.35.5 The joint closure shall be flame and corrosion resistance, airtight and complete with water tight sealed doors for protection against water penetration. 4.35.6 The technical specification summary for mechanical closure is as follows: Description

Specification

No. of fibre allocated

24 cores (loose or ribbon)

No. of slack tray

6

Protection sleeve slot

8 slot per tray

Fibre protection tube

12

No. of cable entry

4

Cable diameter

Ф8 ~ Ф21mm

Overall Dimensions

340 X 140 X 126mm

LXWXH

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4.36

TECHNICAL SPECIFICATION - SECTION B

High Density Polyethylene Pipe (HDPE)

4.36.1 High Density Polyethylene pipes (HDPE) shall be used as a protection to fibre optic cable. 4.36.2 The fibre optic cable shall be pulled through in the HDPE pipe and direct buried at depth of 800mm of the open trenching work. 4.36.3 Diameter requirement of the HDPE pipe shall be 50mm and mechanical coupler shall be used to connect the HDPE pipes. 4.36.4 Heat shrink material shall be used as a replacement to mechanical coupler in order to secure and seal between GI pipes, HDPE pipes or corrugated pipes. 4.36.5 Corrugated flexible tube shall be a part of the HDPE pipe and it is mainly used for jointing purposes, cable entrance at hand hole and joint RC protection, HDD process, cable entrance at cabin and station, etc. Fundamentally, corrugated flexible tube function as HDPE pipe but the usage is for short length only. 4.36.6 The technical specification summary of HDPE pipe is as follows: Description

Specification

Product Code

PN 12.5 MS 1058 DIN 8075

Nominal Diameter

50mm

Outer Diameter

50.00mm ± 0.30mm

Wall thickness

4.00mm ± 0.25mm

Nominal Working Strength

785 kgF

Minimum Longitudinal Test Force

8.5 kN

Maximum reel length

200/500 per drum

Pipe stiffness

1100 kPa

Duct ovality before reeling / coiling

≤ 3%

Duct ovality after reeling / coiling

≤ 7%

Inner duct

Smooth wall

Guarantee

20 years period of its nonbiodegradable properties of the materials and legible properties of the pipe.

Colour

Black with striking yellow stipe

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

4.36.7 The technical specification summary of corrugated flexible tube is as follows: Description

4.37

Specification

Nominal diameter

40mm

Outer diameter

40mm ± 0.30mm

Wall thickness

2.00mm ± 0.25mm

Colour

Black

Maximum reel length

30m per roll

Bending radius

277.7 mm

Guarantee

20 years period of its non-biodegradable properties of the materials and legible properties of the tube.

Fibre Distribution Frame (FDF)

4.37.1 Fibre Distribution Frame (FDF) shall comprise of 3 main components: i) Fibre Distribution Frame (FDF) ii) FDF block iii) Slack Tray 4.37.2 The overall dimension of the FDF: i) Width : 600mm ii) Length : 300mm iii) Height : 2100mm 4.37.3 The FDF shall be constructed to mount 19” frame and the maximum quantity of FDF blocks that can be mounted is 9 units. 4.37.4 The overall dimension of FDF block: i) Width : 475mm ii) Length : 300mm iii) Height : 85mm 4.37.5 Each FDF block shall comprise of 4 slack trays and shall be equipped with front cover to protect the FC/PC optical connection. 4.37.6 The overall dimension of the Slack Tray: i) Width : 390mm ii) Length : 240mm iii) Height : 20mm 4.37.7 Each Slack Tray shall comprise of a minimum quantity of 3 units FC/PC optical connector.

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TECHNICAL SPECIFICATION - SECTION B

4.37.8 Each Slack Tray shall be coupled to one side, which is allowed for mechanical movement. 4.38

Joint Box Signage

4.38.1 The signage shall comprise of indication and erection pole. 4.38.2 The dimensions of the indication plate shall be 500mm x 500mm (W x L), and the thickness of the plate shall be 5mm. 4.38.3 The dimensions of the erection pole shall be 800mm x 160mm x 2500mm (W x L x H), and the thickness of the pole shall be 5mm. The pole shall be hollow designed. 4.38.4 In order to accommodate the 10mm nuts and bolts from the plate, there must be 2 holes at the 80mm width of the hollow pole. The first hole shall be at a distance of 20mm from the top portion of the pole and the second hole shall be at a distance of 440mm from the top portion of the pole. The same 2 holes shall be made on the other side of the 80mm width of the hollow pole. 4.38.5 There shall be 2 nuts of indication plate for each erection pole. The indication plate must be installed at both sides of the 80mm width of the erection pole. 4.38.6 The background colour of the indication plate shall be striking yellow. 4.38.7 The only information printed on the plate shall be the optical fibre cable joint number sequence, i.e., it shall be marked as “J1….Jn” (example: J1, J2, J3, etc.). 4.38.8 The size of the alphabet and number shall be 400mm and the colour shall be striking red. 4.38.9 The detail dimension requirement shall be described in Appendix T2/j. 4.38.10 The technical specification summary of indication plate shall be as follows: Description

Specification

Dimension

500mm width x 500mm length

Thickness

5mm

Background colour

Striking yellow

Material

SWG 26 colour bond sheet

Alphabet and number size

400mm

Alphabet and number colour

Striking red

Alphabet and number material

3M

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TECHNICAL SPECIFICATION - SECTION B

4.38.11 The technical specification summary of erection pole shall be as follows: Description

4.39

Specification

Dimension

80mm width, 160mm length and 2500 height

Thickness

5mm

Material

Galvanised hollow with anti rust

Galvanised Iron Pipe (GI Pipe)

4.39.1 Galvanised iron (GI) pipe shall be the last resort to replace HDPE pipe for location where open trenching is totally impossible due no space available, steep terrain, cable running on bridge, etc. 4.39.2 Heat shrink material shall be used at the end portion of both sides of GI pipes in order to securely seal the HDPE pipe and GI pipes. 4.39.3 GI pipe shall secured with bracket to concrete footing of size 200mm width and 200mm length for steep terrain installation. 4.39.4 GI pipe shall be secured with bracket to bridge structure if there is no trunking available. 4.39.5 The technical specification summary of GI pipe shall be as follows: Description

Specification

Length of GI pipe

6000mm

Thread requirement

50mm length thread for both ends

Thickness

2mm

Diameter

100mm

Coupler

100mm diameter coupler with 100mm length

Bending

Heat bending to required dimension

Class

C type

5.0

TECHNICAL SPECIFICATION TRANSMISSION SYSTEM

5.1

GENERAL

5.1.1

Requirement

FOR

SYNCHRONOUS

DIGITAL

5.1.1.1 This specification defines JKNS’s requirements for SDH equipment (STM-1) including those for Digital Cross Connect (DXC), Add Drop Multiplexer (ADM), Regenerator and Terminal Multiplexer (TM), to be used for implementation of synchronous transmission network between Tanjung Aru (inclusive) and Tenom (inclusive) stations.

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TECHNICAL SPECIFICATION - SECTION B

5.1.1.2 The primary goal is to create strings of stations equipped by synchronous system at STM-1 levels, which will be connected via fibre optic cable system as per section 4 of this Technical Specifications (Section B). 5.1.1.3 The spectral width of optical sources of the equipment proposed shall be compatible to this cable design. 5.1.1.4 For reference, the existing SDH transmission network layout used in KTMB shall be as per Appendix 3 (less loop back protection). In this Contract the Contractor shall provide loop back protection at STM-1 level. 5.1.1.5 A minimum of 16 x 2 Mbit/s shall be provided at all stations. 5.1.2

Features

5.1.2.1 The SDH equipment offered shall have the following key features:a. Add/drop capability to tributary with the following bit rates i) 2 Mbit/s ii) 34 Mbit/s iii) 140 Mbit/s b. Flexible , modular and conforming to modern open topology network architectures. c. Loop-back protection at STM-1 level. d. Sub-Network Connection Protection (SNCP) defined paths and channels, shall be available

for the protection for user

e. Cross connection of the following granularities : 64kbps, VC-12, VC-2, VC-3 and VC-4 f.

Network Management System (NMS) to supervise, control and manage the proposed SDH and existing PDH equipment in the network.

g. Availability of order-wire h. Upgradable to future Telecommunication Management Network (TMN) as per CCITT recommendation M.30 (or relevant ITU-T standards) with ready access points i.

Protection of the Management Channels for the network with Intermediate to Intermediate (IS-IS) routing.

j.

Protection of the Synchronisation of the network with Synchronisation Status Messaging (SSM)

k. Remote and Local Management and maintenance capabilities of the SDH network and PDH networks in the same network management system. l.

Optical safety

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TECHNICAL SPECIFICATION - SECTION B

5.1.2.2 The optical fibre cables to be installed under this Contract along the railway route shall form part of JKNS’s dedicated telcommunications network. The Contractor shall make use of optical fibre pairs along the route, as follows:a) 1 pair of fibres for a SDH STM-1 system trunk for the main route. b) 1 pair of fibres for loop-back protection. 5.1.2.3 The equipment offered shall be upgradable from STM-1 to STM-4 for future application. The Tenderer shall furnish details on how this can be achieved. 5.1.2.4 The equipment offered shall be fully transverse compatible. Any deviations shall be stated with reasons. 5.1.2.5 Detailed description of the operations of all equipment offered shall be provided such as : i) ii) iii) iv) v) vi) vii) viii)

Details of multiplexing techniques Clock synchronisation Network protection and healing capabilities Operation and maintenance features Power consumption and heat dissipation System layout Dimensions of all equipment offered TMN compatibility

5.1.2.6 Complete and comprehensive details of the equipment offered shall be provided by the Tenderer. 5.1.2.7 Complete and comprehensive details of transmission network layout and optical power budget calculations shall be provided in the Tender. 5.1.3

Relevant Standards The SDH network equipment must fulfill the newest version of the following ETSI and ITU-T standards and recommendations:

5.1.3.1 5.1.3.2 5.1.3.3 5.1.3.4 5.1.3.5

Standard ETS 300 147 ETS 300 417 ETS 300 462-5 ITU-T G.652 ITU-T G.653

5.1.3.6

ITU-T G.654

5.1.3.7

ITU-T G.703

5.1.3.8

ITU-T G.704

5.1.3.9 5.1.310

ITU-T G.707 ITU-T G.781

Name of Standard Multiplexing hierarchy SDH Equipment Synchronous Equipment Clock (SEC) definition Characteristics of a single mode optical fibre cable Characteristics of a dispersion-shifted single-mode optical fibre cable Characteristics of a 1550 nm wavelength lossminimized single-mode optical fibre cable Physical/electrical characteristics of hierarchical digital interfaces Synchronous frame structures used at 1544, 6312, 2048, 8488 and 44736 kbit/s hierarchical levels Network node interface for the SDH Structure of recommendations on equipment for SDH

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5.1.3.11 5.1.3.12 5.1.3.13

ITU-T G.782 ITU-T G.783 ITU-T G.823

5.1.3.14

ITU-T G.825

5.1.3.15

ITU-T G.826

5.1.3.16

ITU-T G.957

5.1.3.17

ITU-T G.958

5.1.3.18 5.1.3.19 5.1.3.20

ITU-T Q.811 ITU-T Q.812 ITU-T Q.921

5.1.3.21

ITU-T X.214

5.1.3.22

ITU-T X.215

5.1.3.23

ITU-T X.216

5.1.3.24

ITU-T X.217

5.1.3.25

ITU-T X.219

5.1.3.26

ITU-T X.224

5.1.3.27

ITU-T X.225

5.1.3.28

ITU-T X.226

5.1.3.29

ITU-T X.227

5.1.3.30 5.1.3.31

ITU-T X.229 ITU-T X.710

5.1.3.32

ITU-T X.711

5.1.3.33 5.1.3.34 5.1.3.35 5.1.3.36

ISO 8802-2 ISO 8571 ISO 9542 ISO 10589

TECHNICAL SPECIFICATION - SECTION B

Types and general characteristics of SDH equipment Characteristics of SDH equipment functional blocks The control of jitter and wander within digital networks which are based on the 2048 kbit/s hierarchy The control of jitter and wander within digital networks which are based on SDH Error performance parameters and objectives for international constant bit rate digital paths at or above the primary rates Optical interfaces for equipment and systems relating to SDH Digital line systems based on SDH for use on optical fibre cables Lower layer protocol profiles for the Q3 interface Upper layer protocol profiles for the Q3 interface ISDN user-network interface-data link layer specification Information technology - Open System Interconnections - Transport service definition Information technology - Open System Interconnections - Session service definition Information technology - Open System Interconnections - Presentation service definition Information technology - Open System Interconnection - Service definition for the association control service element Remote operations: model, notation and service definition Information technology - Open System Interconnection - Protocol for providing the connection-mode transport service Information technology - Open System Interconnection - Connection-oriented session protocol: protocol specification Information technology - Open System Interconnection - Connection-oriented presentation protocol: protocol specification Information technology - Open System Interconnection - Connetion-oriented protocol for the association control service element: protocol specification Remote operations: protocol specification Common management information service definition for CCITT applications Common management information protocol specification for CCITT applications Ethernet FTAM ES-IS Protocol IS-IS Protocol

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5.1.4

TECHNICAL SPECIFICATION - SECTION B

Mechanical Requirements The mechanical design shall incorporate a high degree of modularity. It shall be a goal of the equipment and network design in order to keep the number of different types of subunit as low as possible. It shall be possible to use the same types of electrical and optical interfaces unit in the different types of the SDH equipment offered. The physical dimensions of the mechanics used for the project is to be describe. It is required that other aspects of the mechanics, such as, heat dissipation or installation of the cables be offered in accordance to the relevant ETSI standards.

5.1.5

Operating voltage

5.1.5.1 The equipment shall operate from a nominal -48 V DC supply. The performance shall be maintained for the supply voltage variations between +/-20% of nominal voltage. The limit of hum ripple shall not be greater than 100mV within the frequency range of 50 to 100 Hz. 5.1.5.2 The contractor shall provide an earthing system for the transmission sites. The earthing shall be less than 3 ohms. 5.1.5.3 The equipment shall not be damaged by supply voltage variations between 0 and 72 volts DC. 5.1.5.4 Switching transients either on arriving on supply circuits or generated when the equipment is switched on or off shall not damage the equipment. 5.1.5.5 The Tenderer shall specified the power consumption of the equipment offered and the heat dissipation based on per system basis. 5.2

BASIC FUNCTIONS OF THE EQUIPMENT

5.2.1

STM-1 Level of Network Element

5.2.1.1 Following STM-1 level of network elements shall be provided • • • •

STM-1 Regenerator STM-1 Terminal multiplexer STM-1 Add/drop multiplexer STM-1 DXC (has more than three STM-1 interfaces)

5.2.1.2 The capacity of lower order connection function(S3_C, S2_C, S12_C) shall be at least 3 x STM-1 equivalents for ADM and at least 4 x STM-1 equivalents for DXC. 5.2.1.3 The cross connections shall be fully non-blocking for the DXC type of network element.

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TECHNICAL SPECIFICATION - SECTION B

5.2.1.4 The number of 2 Mbit/s interfaces (E12_Z_TT) shall be: • 63 x 2 Mbit/s for the terminal multiplexer • 126 x 2 Mbit/s interfaces for the ADM and DXC 5.2.1.5 The number of 34 Mbit/s interfaces (E31_TT) shall be: • 3x 34 Mbit/s for the terminal multiplexer • 6x 34 Mbit/s interfaces for the ADM and DXC 5.2.1.6 The number of electrical STM-1 (155 Mbit/s) interfaces (ES1_TT) shall be: • 4 x STM-1 interfaces for the DXC 5.2.1.7 The minimum number of optical STM-1 (155 Mbit/s) interfaces (OS1_TT) shall be: • 1 x STM-1 for the terminal multiplexer • 3 x STM-1 interfaces for the ADM • 4 x STM-1 interfaces for the DXC 5.2.2

Upgrade Procedure Between Different Types of Network Elements.

5.2.2.1 The supplier shall state the upgrade procedure from STM-1 terminal multiplexer to STM-1 ADM and from STM-1 ADM to STM-1 DXC. 5.2.2.2 The supplier shall state the upgrade procedure from STM-4 terminal multiplexer to STM-4 ADM and from STM-4 ADM to STM-4 DXC. 5.2.2.3 The supplier shall state the upgrade procedure from STM-1 level of equipment to STM-4 level of equipment interfaces. 5.2.3

STM-1 optical interfaces (OS1-Xy.z_TT and OS1/RS1_A) (Note - Xy.z will be one value of the set S1.1, L1.1, L1.2, V1.2, U1.2).

5.2.3.1 The optical interfaces shall meet the characteristics for S1.1, L1.1, L1.2 specified in G.957, for V1.2 specified in G.691 and for U1.2 specified in G.957. 5.2.3.2 The alarms from the optical interfaces shall be possible to select to be as monitored or not monitored. 5.2.3.3 The optical interfaces shall support optical launched and received power measurements. 5.2.3.4 In the absence of input jitter, the intrinsic jitter at the STM-1 output interface (in a regenerative repeater) shall not exceed: • 0.5 UI peak-to-peak when measured through a bandpass filter with corner frequencies at 500 Hz and 1.3 MHz and low pass roll off of 60 dB/decade and high pass roll off of 20 dB/decade;

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TECHNICAL SPECIFICATION - SECTION B

• UI peak-to-peak when measured through a bandpass filter with corner frequencies at 65 kHz and 1.3 MHz and low pass roll off of 60 dB/decade and high pass roll off of 20 dB/decade. 5.2.3.5 The jitter transfer measured between an STM-1 input and STM-1 output in a regenerative repeater shall be as specified in ITU-T Recommendation G.958, section 9.3.2, Type A. 5.2.4

STM-4 optical interfaces (OS4-Xy.z_TT and OS4/RS4_A) (Note – Xy.z will be one value of the set S4.1, L4.1, L4.2, L4.3,V4.2, U4.2).

5.2.4.1 The optical interfaces shall meet the characteristics for S4.1, L4.1, L4.2, L4.3 and U4.2 specified in G.957 and for V4.2 specified in G.691. 5.2.4.2 The alarms from the optical interfaces shall be possible to select to be as monitored or not monitored. 5.2.4.3 The optical interfaces shall support optical launched and received power measurements. 5.2.4.4 In the absence of input jitter, the intrinsic jitter at the STM-4 output interface (in a regenerative repeater) shall not exceed: • 0.5 UI peak-to-peak when measured through a bandpass filter with corner frequencies at 1000 Hz and 5 MHz and low pass roll off of 60 dB/decade and high pass roll off of 20 dB/decade; • UI peak-to-peak when measured through a bandpass filter with corner frequencies at 250 kHz and 5 MHz and low pass roll off of 60 dB/decade and high pass roll off of 20 dB/decade. 5.2.4.5 The function shall process the signal such that the jitter transfer (measured between an STM-4 input and STM-4 output in a regenerative repeater) shall be as specified in ITU-T Recommendation G.958, section 9.3.2, Type A. 5.2.5

STM-1 electrical interface (ES1_TT and ES1/RS1_A) .

5.2.5.1 The pulse shape shall be according to ITU-T G.703. 5.2.5.2 The peak to peak voltage shall be according to ITU-T G.703. 5.2.5.3 The rise time shall be according to ITU-T G.703. 5.2.5.4 75 ohm coaxial pair shall be used. 5.2.5.5 The return losses (input/output) shall be according to ITU-T G.703. 5.2.5.7 The alarms from the interfaces shall be possible to select to be as monitored or not monitored. 5.2.6

139 264 kbit/s electrical interface (E4_TT and E4/P4x_A).

5.2.6.1 The pulse shape shall be according to ITU-T G.703. 5.2.6.2 The peak to peak voltage shall be according to ITU-T G.703. TENDER FOR REHABILITATION AND UPGRADING OF INFRASTRUCTURE WORKS FOR JABATAN KERETAPI NEGERI SABAH

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TECHNICAL SPECIFICATION - SECTION B

5.2.6.3 The rise time shall be according to ITU-T G.703. 5.2.6.4 75 ohm coaxial pair shall be used 5.2.6.5 The return losses (input/output) shall be according to ITU-T G.703 5.2.6.6 The interface shall operate without any errors when any combination of the following signal conditions exist at the input: - An input electrical amplitude level with any value in the range specified by ITUT G.703. - Jitter modulation applied to the input signal with any value defined in ITU-T Recommendation G.823. - The input signal bit rate has any value in the range 139 264 kbit/s ± 15 ppm. 5.2.6.7 The alarms from the interfaces shall be possible to select to be as monitored or not monitored. 5.2.7

Nil

5.2.8

34 368 kbit/s electrical interface (E31_TT and E31/P31x_A).

5.2.8.1 The pulse shape shall be according to ITU-T G.703. 5.2.8.2 The nominal peak to peak voltage of a mark (pulse) shall be according to ITU-T G.703. 5.2.8.3 The peak voltage of a space (pulse) shall be according to ITU-T G.703. 5.2.8.4 The nominal pulse width shall be according to ITU-T G.703. 5.2.8.5 The ratio of the amplitudes of positive and negative pulses at the center of the pulse interval shall be according to ITU-T G.703. 5.2.8.6 The ratio of widths of positive and negative pulses at the nominal half amplitude shall be according ITU-T G.703. 5.2.8.7 75 ohm coaxial pair shall be used. 5.2.8.8 The return losses (input/output) shall be according to G.703. 5.2.8.9 The alarms from the interfaces shall be possible to select to be as monitored or not monitored. 5.2.8.10The interface shall operate without any errors when any combination of the following signal conditions exist at the input: - An input electrical amplitude level with any value in the range specified by ITUT G.703. - Jitter modulation applied to the input signal with any value defined in ITU-T Recommendation G.823.

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TECHNICAL SPECIFICATION - SECTION B

- The input signal bit rate has any value in the range 34 368 kbit/s ± 20 ppm. - The input signal has an interfering signal specified by ITU-T G.703. 5.2.9

2048 kbit/s electrical interface (E12-Z_TT, E12/P12x_A and E12/P12s_A).

5.2.9.1 The pulse shape shall be according to ITU-T G.703. 5.2.9.2 The nominal peak to peak voltage of a mark (pulse) shall be according to ITU-T G.703. 5.2.9.3 The peak voltage of a space (pulse) shall be according to ITU-T G.703. 5.2.9.4 The nominal pulse width shall be according to ITU-T G.703. 5.2.9.5 The ratio of the amplitudes of positive and negative pulses at the center of the pulse interval shall be according to ITU-T G.703. 5.2.9.6 The ratio of widths of positive and negative pulses at the nominal half amplitude shall be according ITU-T G.703. 5.2.9.7 120 ohm symmetric pair / 75 ohm coaxial pair shall be used. 5.2.9.8 120 ohm interface: output signal balance shall meet the requirement specified by ITU-T G.703. 5.2.9.9 The return losses (input/output) shall be according to G.703. 5.2.9.10 The alarms from the interfaces shall be possible to select to be as monitored or not monitored. 5.2.9.11The interface shall operate without any errors when any combination of the following signal conditions exist at the input: - An input electrical amplitude level with any value in the range specified by ITU-T G.703. - Jitter modulation applied to the input signal with any value defined in ITU-T Recommendation G.823. - The input signal bit rate has any value in the range 2048 kbit/s ± 50 ppm when mapped in the asynchronous mode. - The input signal bit rate has any value in the range 2048 kbit/s ± 4.6 ppm when mapped in the byte synchronous mode. - The input signal has an interfering signal specified by ITU-T G.703. 5.2.10

2048 kHz synchronisation interface (T12-Z_TT, T12/SD_A).

5.2.10.1 The pulse shape shall be according to ITU-T G.703. 5.2.10.2 The maximum peak voltage shall be according to ITU-T G.703.

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TECHNICAL SPECIFICATION - SECTION B

5.2.10.3 The minimum peak voltage shall be according to ITU-T G.703. 5.2.10.4 120 ohm symmetric pair / 75 ohm coaxial pair shall be used. 5.2.10.5 The return losses shall be according to ITU-T G.703. 5.2.10.6 The alarms from the interfaces shall be possible to select to be as monitored or not monitored. 5.2.10.7 The interface shall operate without any errors when any combination of the following signal conditions exist at the input: -

An input electrical amplitude level with any value in the range specified by ITU-T G.703.

-

Jitter modulation applied to the input signal with any value defined in ETS 300 426.

-

The input signal frequency has any value in the range 2048 kHz ± 4.6 ppm.

5.2.11 64 kbit/s auxiliary interface (E0_TT, E0/P0x_A) 5.2.11.1 The pulse shape shall be according to ITU-T G.703 5.2.11.2 The peak to peak voltage shall be according to ITU-T G.703 5.2.11.3 The peak voltage of a space (no pulse) shall be according to ITU-T G.703 5.2.11 4 The nominal pulse width shall be according to ITU-T G.703 5.2.11.5 The ratio of the amplitudes of positive and negative pulses at the center of the pulse interval shall be according to ITU-T G.703. 5.2.11.6 The ratio of widths of positive and negative pulses at the nominal half amplitude shall be according ITU-T G.703. 5.2.11.7 120 ohm symmetric pair shall be used. 5.2.11 8 Output signal balance shall meet the requirement specified by ITU-T G.703. 5.2.11.9 The return losses (input/output) shall be according to G.703 5.2.11.10 Impedance towards ground shall be according to ITU-T G.703 5.2.11.11 The interface shall operate without any errors when any combination of the following signal conditions exist at the input: -

An input electrical amplitude level with any value in the range specified by ITU-T G.703.

- Jitter modulation applied to the input signal with any value defined in ITU-T recommendation G.823. - The input signal frequency has any value in the range 64 kbit/s ± 100 ppm.

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5.2.12

TECHNICAL SPECIFICATION - SECTION B

The input signal has an interfering signal specified by ITU-T G.703.

V.11 auxiliary interface (V11_TT, V11/V0x_A).

5.2.12.1 The electrical characteristics of the V.11 interface shall be according to ITU-T recommendation V.11. 5.3

INSTALLATION AND CONFIGURATION

5.3.1

Installation of the units shall be possible with a network element manager remotelly.

5.3.2

Following node level data shall be supported by the node: - Name - Location - Sub rack/Shelf type - Serial number - Version - System release version

5.3.3

The configuration of the nodes shall be easily expanded by adding plug-in units and modifying software settings.

5.3.4

Removing or inserting plug-in units shall not affect the existing traffic on other units.

5.3.5

All configurations affecting to the main transmission shall be possible to do remotely with SW settings. Strappings are not allowed.

5.3.6

All SW settings shall be stored into a non-volatile memory.

5.3.7

When a spare unit is replaced to an existing unit, all configuration data shall be automatically uploaded from the back up files in the node, i.e. the spare unit does not require any configuration actions.

5.3.8

All units shall have the sales item codes for both hardware and software that can be read remotely.

5.3.9

As a consequence of a missing or failed unit shall be sent unequipped signal or AIS in the affected signals.

5.3.10 Node shall support configurable stack parameters. 5.4

MISCELLANEOUS TRANSMISSION REQUIREMENTS

5.4.1

In order to prevent unnecessary alarms during the maintenance work, transmission blocks shall be possible to be put in unmonitored state which prevents the alarm notifications.

5.4.2

Automatic laser shut down according to G.958 shall be supported.

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TECHNICAL SPECIFICATION - SECTION B

5.4.3

Forced on/off for lasers is required.

5.4.4

For the mapping of the 2 Mbit/s signal to the VC-12 frame two modes are required: a) Asynchronous mode b) Byte syncronous mode

5.5

SYNCHRONISATION

5.5.1

Please give full description of how the synchronisation functionality is implemented into the network elements (including selection criteria, protection against failures etc.).

5.5.2

Several synchronisation sources shall be available, the following shall be usable as synchronisation source: a) Any STM-N b) Any 2 Mbit/s c) At least two external 2 MHz signals

5.5.3

The offered equipment shall provide at least two 2 Mhz synchronisation outputs.

5.5.4

The management system shall include a user definable synchronisation priorty list of the available timing references in the network.

5.5.5

The retiming functionality shall be available to allow the transfer of high quality SDH network timing to PDH equipment. It shall be an integrable part of the 2 Mbit/s interface (outgoing 2Mbit/s synchronised to SDH network synchronisation to filter out effects of pointer adjustments).

5.5.6

Synchronisation Status Messaging for synchronisation quality must be available. SSM is transferred in the S1 byte of STM-N Section Overhead (SOH), and it must ensure that the best available timing source will be used for synchronising the network.

5.6

MANAGEMENT INTERFACE

5.6.1

Q3 Management data must carried between SDH nodes by the DCC bytes of STM SOH. The use of either DCCR or DCCM must be user definable.

5.6.2

The routing protocol must be in accordance to ISO 9542 (ES-IS) and ISO 10589 (IS-IS).

5.6.3

The management network shall be automatically protected against failures.

5.6.4

Updates of routing tables must be automatic.

5.6.5

Any network element must be accessible from any other point of the network.

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TECHNICAL SPECIFICATION - SECTION B

5.6.6

Please describe, how the network management network can be expanded if the network grows (state addressing rules, what action needed, limits of network size etc.).

5.7

SUPERVISION PROCESS

5.7.1

The supervision process shall be according to ETS 300 417-1 recommendation

5.7.2

Please state in a form of a table, what alarms are generated on the STM-1 and STM-4 equipment respectively.

5.7.3

The equipment must have three alarm outputs (for urgent, non-urgent and a reminder).

5.7.4

The equipment must have at least four user configurable alarm inputs. These alarm inputs can be enabled and given a name, description and severity. When active these should be available for the network management.

5.8

PERFORMANCE MONITORING

5.8.1

Performance monitoring shall be available according to ITU-T G.821 and G.826 for the following functional blocks: a) b) c) d) e)

RST (STM-N signals) MST (STM-N signals) HPT (VC-4) LPT (VC-4/2/12) EPPI (PDH interfaces)

5.8.2

15 minute and 24 hour currrent records shall be available.

5.8.3

16 latest (faulty) records shall be stored in the node.

5.8.4

Performance values shall be presented both as absolute values and as ratios.

5.8.5

Performance monitoring shall be possible to set on to all above mentioned functional blocks of the node, including history records.

5.9

TESTS AND MEASUREMENTS

5.9.1

The following test loops are required: a) b) c) d) e)

5.9.2

Test loop for the 2 Mbit/s: Equipment loop Test loop for the 34 Mbit/s: Interface loop. Test loop for the 34 Mbit/s: Equipment loop. Test loop for the 140 Mbit/s: Interface loop. Test loop for the 140 Mbit/s: Equipment loop.

An alarm must be raised if a test loop or forced laser state is active.

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TECHNICAL SPECIFICATION - SECTION B

5.9.3

Optical levels, transmitted and received: Measuring of the levels of transmitted and received optical signals is required.

5.10

AUXILLIARY INTERFACE

5.10.1 The equipment must have at least four auxiliary interfaces. 5.10.2 V.11, V.24 and G.703 interfaces must be supported. 5.10.3 The capacity of the interface shall be 64, 192, or 576 kbit/s depending on which overhead byte(s) the interface is connected to. 5.10.4 It shall be possible to connect an auxiliary interface to any free byte of the SOH as well as to the F2 byte of VC-4 POH. 5.10.5 Embedded branching functions with at least 4 inputs shall be supported (connections to V.11 and STM interfaces). 5.11

ENGINEERING ORDERWIRE (EOW)

5.11.1 The equipment shall support an EOW with connections to the E1 or E2 byte of an STM-1 SOH to at least three directions. 5.12

SERVICE PROTECTION IN SDH

5.12.1 General 5.12.1.1 Please, state the Protection Schemes Supported, including: - protection types - switch criteria - levels of protection - switch and hold times - control 5.12.2 SNC Protection 5.12.2.1 Sub-network connection (SNC) path protection is required to protect the VC12, VC-2, VC-3 and VC-4 paths. 5.12.2.2 SNCP shall be based on 1+1 protection i.e. there will be a working and a protecting channel transferring traffic simultaneously. 5.12.2.3 The SNC protection shall be applicable in add/drop multiplexers and crossconnect nodes. 5.12. 3

Synchronisation Protection

5.12.3.1 The synchronisation network must be protected. 5.12.4

Network management protection

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TECHNICAL SPECIFICATION - SECTION B

5.12.4.1 The network management network must be protected. 5.12.5

Equipment Protection

5.12.5.1 Equipment protection should be provided for the most important equipment resources, such as cross connection, control unit and node timing. These unit shall be fully protected, i.e. either one of the installed units is the active one while the other unit is in stand-by mode, ready to take over if necessary. 5.12.5.2 The protection shall be implemented by installing spare units in the subrack. 5.12.5.3 The control unit and the cross connect unit shall be fully protected, i.e. either one of the installed units is the active one while the other unit is in stand-by mode, ready to take over if necessary. 5.12.5.4 Removing the inactive unit in a steady state of the node must causes no interface in transmission or management. 5.12.5.5 The spare plug-in units shall be common i.e. usable as back-ups for configurations. 5.13

all

POWER REQUIREMENTS

5.13.1 Please state the alternatives for power feeding voltages. 5.13.2 Please state the power consumption of each plug-in unit, as well as typical and maximal power consumption of a node. 5.13.3 Please state protection schemes for the power feeding. 5.14

MECHANICS

5.14.1 Please state the different mechanical solutions, i.e. different subracks (dimensions, number of slots, installation to different type of racks). 5.15

ENVIRONMENTAL REQUIREMENTS

5.15.1 The equipment shall be designed to operate in the following environmental conditions: 5.15.1.1 Temperature Range a) Operation: +5° C to +40° C b) Transportation: -40° C to +75° C c) Storage: -25° C to +55° C 5.15.1.2 Relative Humidity a) Operation: 5 - 85% b) Transportation: to 95% c) Storage: 10 - 100%

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TECHNICAL SPECIFICATION - SECTION B

5.15.1.3 Absolute humidity a) Operation: 1 g/m3 b) Storage: 0.5 g/m3 5.16

EMC REQUIREMENTS

5.16.1 Emissions from Equipment: 5.16.1.1 The equipment must fullfill the following tables: a)

Conducted emission, power leads

Recommendation Frequency

b)

ETS 300 386–1: December 1994 Quasi-peak dB ( V)

Average dB ( V)

20 ... 150 kHz

79

–

0.15 ... 0.5 MHz

79

66

0.5 ... 30 MHz

73

60

Radiated emission, electrical interference field strength (10m distance) Recommendation

EN55022

Frequency

5.16.2

(C.I.S.P.R 22) Class B Quasi-peak dB ( V/m)

30 ... 230 MHz

30

230 ... 1000 MHz

37

Immunity of Equipment:

5.16.2.1 The equipment must fullfill the following tables: a)

Electrostatic discharge (ESD)

Recommendation Contact discharge

EN 61000-4-8 Air discharge

Compliance criterion

6 kV

8 kV

Normal performance

8 kV

15 kV

Loss of function (self recovery)

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TECHNICAL SPECIFICATION - SECTION B

b) Electrical fast transients/burst (EFT) Recommendation Cable DC power cables Signal cables

EN61000-4-4 Voltage

Compliance criterion

1 Kv

Normal performance

2 Kv

Loss of function (self recovery)

500 V 1 Kv

c)

Normal performance Loss of function (self recovery)

Radio frequency electromagnetic field disturbances

Recommendation Frequency 0.15 ... 80 MHz

ENV 50141 Voltage

Compliance criterion

3V

Normal performance

10 V

Reduced performance

Recommendation

ENV 50204

Frequency

Electric field strength

80 ... 1000 MHz (AM)

3 V/m

Normal performance

10 V/m

Reduced performance

Recommendation

ENV 50204

Frequency

Electric field strength

900 MHz (PM)

d)

Compliance criterion

Compliance criterion

3 V/m

Normal performance

10 V/m

Reduced performance

Surge immunity

Recommendation

EN61000-4-5

Voltage 500 V

Compliance criterion Reduced performance

5.17

NETWORK MANAGEMENT REQUIREMENTS

5.17.1 General 5.17.1.1 The Network Management System (NMS) shall provide centralised network management with user friendly features. The NMS shall be able to manage all the nodes and network elements (NE) within JKNS’s Digital Transmission Network.

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5.17.1.1 The NMS Centre shall be located in centralised traffic control office (CTC) at Tanjung Aru to manage the whole JKNS’s Digital Transmission Network . It shall among others, but not limited to the following functions: i) ii) iii) iv) v)

Supervise and indicate the failure alarms and operational conditions from local stations. Transmit control signals to the local station. Register and record the network data and alarm history for the managed region. Takeover complete role of any chosen local station. Perform fault diagnostics up to the panel / module level with graphical support.

5.17.1.3 Nil 5.17.1.4 The Local Station acts as information collecting and despatching point. It shall, among others but not limited to the following functions: i) ii)

Detailed alarm and BER collecting function from the Digital Transmission Equipment and transmit this signal to the NMS Centre.. Receive the control signals from the NMS Centre.

5.17.1.5 The NMS system shall be able to manage all proposed NEs in JKNS network 5.17.1.6 The element manager shall provide capabilities such as real time device displays, alarm monitoring and processing, status report and device configuration. 5.17.1.7 The NMS System shall incorporate all of the following: Fault,Configuration,Administrative,Performance, and Security Management 5.17.1.8 The equipment offered shall have a local technical support group for customer support 5.17.2

NMS Platform

5.17.2.1 Shall provide a graphical user interface 5.17.2.2 The NMS System should be scalable to provide proper capacity for JKNS's network 5.17.2.3 Should be based on a standard open platform 5.17.2.4 Shall have the capability to perform generic file transfer 5.17.2.5 Nil 5.17.2.6 Shall provide on-line documentation 5.17.3

Management Tools

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5.17.3.1 The system shall provide management tools such as remote terminal access for monitoring and troubleshooting the network. 5.17.3.2 The NMS system shall provide local and remote access to command line and graphical management tools 5.17.3.3 The primary operator interface shall be a hierarchical graphic display comprising of an upper level total network view with the ability to step down to a specific NE in the network. 5.17.3.4 The system must provide the ability to communicate to commonly used relational databases. 5.17.3.5 The system shall provide tools to automate inventory records keeping for all installed equipment. 5.17.3.6 The NMS offered shall have the capability to upload or download configuration databases for installed network elements. 5.17.3.7 The system shall have database for alarm history and information to perform audit trails. 5.17.3.8 The system must be capable of allowing user defineable alarm thresholds, reclassification and filtering. 5.17.3.9 The system must provide for alarm forward via e-mail or paging. 5.17.3.10 The system shall notify the operator of a change in the operational state of a NE by coloured changes of the icons and/or audible alarms. 5.17.4

Performance Management

5.17.4.1 The system shall provide performance management tools for pro-active evaluation and reporting on the network elements and shall consist of the following as a minimum: • • •

Performance Analysis Performance Monitoring Performance Management control

5.17.4.2 The system shall allow the operator to create, change and delete customized performance reports 5.17.5

Monitoring and Fault Management

5.17.5.1 The management system shall have the facilities for monitoring its components, allowing the administrator or operator to see if each of the of the offered component systems are up and working 5.17.5.2 The system fault management shall provide function for detection, isolation and correlation of faults or abnormal operations within the network and shall consist of the following (at a minimum)

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5.17.5.3 Top Level User Interface 5.17.5.4 The system must be reliable and user friendly and have a list of references. • Alarm Viewer • Alarm Monitor • Alarm History • Alarm Manual • Alarm Filtering • Alarm reclassification • Alarm Forwarding 5.17.6

Security Features

5.17.6.1 The NMS system must be capable of limiting user priveleges based on operational requirements 5.17.6.2 The system shall maintain a historical log of signed on users 5.17.6.3 The system shall provide a log of Unauthorized Access attempts 6.0

AUTOMATIC TELEPHONE SWITCHING EQUIPMENT (PABX)

6.1

General

6.1.1

A new exchange to be provided in Tanjung Aru and shall provide at least 180 extensions with provision for future expansion of up to 240 extensions. This shall form part of the JKNS’s integrated communication network together with Train Radio System which also to be provided under this Contract.

6.1.2

All telephone instruments shall be equipped with push button key pads (DTMF dialling).

6.1.3

The PABX shall be equipped with a single position operators console.

6.1.4

Nil.

6.1.5

The equipment supplied must be type approved for connection to the public network, shall meet the CCITT recommendations (or ITU-T standards equivalent) for a national telephone service and shall be suitable for used for PABX plug points / phones required at:(a) Gate hut for level crossing within 2 Km distance from the station.

6.1.6

Before ready for service, the Contractor shall supply to the Engineer the following drawings and documentation inclusive of programming information:Three copies of diagrams, diagram notes, part / stock list specifications, operating instructions, engineering handbooks, remote diagnostic instructions, software command manuals and one site log relevant to each system provided. This to include modems, battery chargers, batteries and all peripheral equipment.

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6.1.7

It shall be possible for JKNS to reconfigure the PABX as an owner, operator, maintainer who will be in total control of its work.

6.1.8

In order to determine whether the proposed exchange is correctly sized (dimensioned) to meet the traffic flows it shall be necessary to carry out detailed traffic studies of both existing and planned traffic patterns. This may involve artificial loading of the system. A copy of the studies shall be forwarded to the Engineer prior to the commencement of the detailed engineering design of the PABX.

6.1.9

The PABX system shall be interfaced and integrated with train radio system which to be provided under this Contract. All materials and equipment for the integration and interfacing of PABX system with train radio system shall be provided by the Contractor.

6.2

Bringing Into Service (BIS) and Bringing Into Traffic (BIT)

6.2.1

The BIS date for the exchange equipment will be specified by the Engineer.

6.2.2

The BIT date for the exchange equipment will be specified by the Engineer.

6.3

Design Requirements

6.3.1

For design purpose the distribution of traffic at an exchange shall be assumed to be: Local traffic Long distance traffic Traffic to/from the public network

40% 40% 20%

6.3.2

The capacity of the common modules such as processors, shall be large enough to handle all the traffic up to the final capacity of the exchange without increasing the blocking value which should be less than 20%.

6.3.3

The exchange shall contain all equipment, (including common cards), wiring and software such that additional facilities may be used after the addition of the relevant card, e.g. extension card, trunk card etc.

6.3.4

The exchange shall be capable of being extended to its ultimate size without degradation of service and shall contain the necessary processors, software and common equipment to contain expansion.

6.3.5

The call barring facilities shall include at least seven programmable categories as follows: (i)

No restrictions, access to the public automatic network (national and international).

(ii)

Access to the national public automatic network.

(iiii)

Access to the local public automatic network (long distance calls are barred).

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(iv)

Access to the public automatic network possible only with the assistance of the operator.

(v)

Access only to JKNS local telephone network (Long distance calls are barred).

(vi)

Access to the JKNS train radio network.

(vi)

Access to the JKNS train radio network possible only through paging by the operator.

6.3.6

Access to the emergency numbers of the public network shall be provided for every extension.

6.3.7

The transmission characteristics shall meet the CCITT recommendation Q.507 (or ITU-T standards equivalent).

6.3.8

The extension line interface in the exchange equipment shall match analogue or digital extension equipment, as required, and fulfill the following requirements: (i)

Extension line circuits shall work without the use of externally mounted long line units to telephone instruments terminated on physical cable pairs of up to nominally 2000 ohms loop resistance (including the telephone instrument).

(ii) The minimum value for the leakage resistance of the line shall be 25 kohms. (This value refers to resistance of one “leg” in a star network representation of the leakage resistance between the line wires and earth). (iii) The transmission bridge shall be symmetrical with respect to earth and the resistance shall be 2 x 400 ohms ± 10% with a nominal voltage of 48 V d.c. (iv) The exchange equipment shall block the extension line after certain period of “off-hook” condition without a selection being received. This period shall be between 10 and 20 seconds. Busy tone shall be sent to the blocked extension. (v) The “recall” facility shall be initiated by a momentary breaking of the line circuit. An earth recall system shall not be accepted. 6.3.9

It shall be also possible to connect individual extensions (digital or analogue) to the exchange equipment via the PCM transmission system, when the distance are too great for the extensions to be served directly via cable connections. The appropriate interface for such applications shall be provided on a ratio of 1:4 extensions.

6.3.10

The digital extension line equipment and telephone sets shall capable of data transmission simultaneously with speech (ISDN working).

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6.3.11

Nil

6.3.12

Nil

6.3.13

The exchange equipment shall be capable of interfacing with traffic to and from the public exchange, and shall include “direct-dial-in” (DDI) facilities of 6 (six) lines.

6.3.14

The Contractor shall also provide 6 (six) Direct exchange lines between the PABX and the public telephone network (trunk lines).

6.3.15

The Contractor shall apply and arrange with telecommunication provider (Telekom Malaysia Berhad, etc.) on behalf of JKNS for the provisions stated in items 6.3.13 & 6.3.14 and all upfront costs shall be borne by the Contractor.

6.3.16

The required connections to the public network, including their electrical characteristics and signalling methods, shall be investigated by the Contractor and provided as required.

6.3.17

The required connections and interfaces for the train radio system shall be provided. A 256 kbit/sec link (4 timeslots) shall be provided between PABX and train radio system. All equipment and materials for the interfacing and connection between PABX and train radio system, including modification / upgrading of software, additional channeling facilities and all installation works, shall be provided by the Contractor.

6.3.18

The communication between PABX and train radio system and vice-versa shall be by means of direct access through the assigned prefix numbers depending on the train radio’s call matrix. However paging through operator shall also be possible.

6.3.19

The following requirements apply for signalling over the network:(i)

The network shall operate with the national R2 signalling method, and comply with the CCITT recommendations Q.400 to Q.480 (or ITU-T standards equivalent).

(ii)

The line signalling shall be the digital version for national use conforming to CCITT recommendation Q.421 to Q.424 (or ITU-T standards equivalent).

(iiii)

The signalling system between the exchange and the connections for the Train Radio System shall be compatible (appropriate interface or conversion equipment to be provided). The Contractor shall also provide interface equipment in the PABX for 256 kbit/sec (4 timeslots) links to train radio system.

(iv)

The relays for different operations shall comply with the CCITT recommendation Q.504 (or ITU-T standards equivalent).

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TECHNICAL SPECIFICATION - SECTION B

6.4

Numbering Scheme

6.4.1

The Contractor shall propose the numbering scheme for JKNS. However, for reference purposes, the numbering scheme used by KTMB is as follows:The local traffic uses only the individual extension numbers, prefix digits being added as required for other purposes, as explained below:NUMBERING SCHEME – Fig. 1 The following numbers are in use in KL area. (1)

(2)

PABX KL Extension number

-------------

Operator

-------------

1 xxx 2001 ...... 2099 2300 ....... 2399 2500 ....... 2599 4000 ....... 4002

Call Operator

-------------

0

Access to trunk / public network ---------

9

Access to train radio system -------------

#9

Access to tie line

-------------

8

Padlock / unpadlock

------------

#8

Follow me

------------

#3

-------------

2100 ------- 2299

-------------

4100 -------- 4299

-------------

2600 -------- 2699

PABX Jalan Kastam Extension number

(3)

PABX Sentul Extension number

(4)

PABX Seremban Extension number

(5)

Number available for allocation: -------------

(i)

5 xxxxx

------------

6 xxxxx

-----------

7 xxxxx

The digits have the following meaning:

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

X Y Y Y Z) Z) Z) Z)

= = = =

trunk prefix area code exchange

extension number

TECHNICAL SPECIFICATION - SECTION B

) )

exchange code) ) KTMB ) Telephone ) Number ) ) )

6.4.2

A national numbering scheme is to be proposed by the Contractor for JKNS based on the ultimate capacity of voice telephone network. For reference, the existing numbering scheme for the existing network in the Kuala Lumpur area of KTMB is shown in fig. 1.

6.5

Operators Consoles

6.5.1

Operator console shall incorporate to provide comprehensive information to the operator regarding the current status in the exchange, including: -

calling, party numbers extensions busy or free calls on queue alarm indications incoming, calls, etc.....

The consoles shall include the equipment for collecting the billing information in case of operator assisted calls to public network. Sufficient number of suitable chairs shall be provided for operators at the operator consoles. 6.5.2

A telephone concentrator system shall be provided for the CTC operator console.

6.6

System Programme

6.6.1

The following requirements apply to the system programme:(i)

The system programme shall include parts or modules necessary to handle all the facilities mentioned in this Specification.

(ii) The programme shall be written in high level language and any changes to the system parameters (such as routing, extension numbers and facilities) shall be capable of implementation by operator commands. (iii) The programme shall be modular and it must be possible to add and clear any module without effect on other modules. (iv) The programme shall also include the on-line diagnostics and statistical routines.

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6.7

System Management

6.7.1

It shall be possible to manage and supervise the network remotely. following facilities and equipment shall be provided at the exchange.

The

(i)

V.24 type connections shall be provided for a maintenance terminal and for a remote control modem.

(ii)

A maintenance terminal. In addition to having a terminal at the exchange, it shall be possible to use a remote terminal at the maintenance centre, operating via the network. The main facilities required on these terminals are:-

(iii)

control of the diagnostics programmes collection of statistics and alarms changing the extension facilities changing the routing parameters.

The system shall provided reports on the traffic volumes, the busy hour data and error reports in such a form that, normally, there shall be no need of further processing of the statistical data.

6.8

Call Information Logging

6.8.1

The exchange shall be provided with call information logging, equipment to record all pertinent data on every call from every extension, such as: -

calling extension number time (and date) called number duration of call

For reference, the existing Call Information Logging format for KTMB’s Kuala Lumpur PABX exchange is shown in Appendix T4/a. 6.8.2

The equipment provided shall be capable of producing bi-weekly or monthly reports of such data for each extension, as well as statistical data on circuit utilisation (for example, total number and duration of local and long distance calls over the public network and within the JKNS network). Appropriate date for billing the extension user (or department) shall also be available:-

6.8.3

Call logging Formats / outputs required are:(i)

40 longest calls in one sheet. Calls to be sorted preferably in the order of call duration’s. Longest call on top.

(ii)

40 most expensive calls in one sheet. Calls to be sorted preferably in the order of cost. Highest cost call on top.

(iii)

Call summary by Divisions. Each division comprises of certain number (say 25) Departments.

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(iv)

Specified Call Number Reports. A Call Report listing out all call details to specified number. The number selected is 600700 which could be changed at the time printing.

(v)

Departmental Reports on individual calls of more than RM X or Y minutes. The value X and Y need to be changed from time to time however right now the values to be used are X=1 Y=20.

(vi)

Extension Reports. Each PABX Extension shall have one report which begins in fresh sheet. It shall be possible to give commands to the system to print all Extension Reports within one department by a single command rather than giving command each time an Extension Report is required. If there is no call recorded for certain Extension in the selected period, the particular Extension report need not be printed out. (for Heads).

(vii)

Time Checking Report. This report list out call records at specified time (say 0100 hr. to 0500 hrs) in specified period (say 1/06/03 to 15/06/03). This report is required to confirm the clock used in the system is correct.

(viii)

Cost table and house keeping (clearing if call records) must be password controlled.

6.8.4

The Contractor shall provide all necessary software & hardware pertaining to call information logging system, i.e., PCs, printer, original software plus recovery discs and license disc plate, table and chair, etc.

6.9

Cabling and Wiring

6.9.1

All external connections for the exchange (such as extension lines, trunk lines and tie lines) shall be wired via distribution frames. The exchange side of a distribution frame shall be equipped with “break jacks” which enable the lines to be isolated for testing. The distribution frames shall also incorporate overvoltage and surge protection devices.

6.10

Power Supplies

6.10.1

The operating voltage of the exchange equipment shall be 48 V d.c. (+/- 10%). Storage batteries and charging equipment shall be provided to enable the equipment to operate normally during a failure of the mains power supply.

6.10.2

The standby battery shall be capable of supporting to exchange load for a minimum of 10 hours. The stand battery shall require minimum maintenance.

6.10.3

Physical size(s) of all power plant shall be supplied with tender. Power plant shall be of end of suite or cabinetised type.

6.10.4

Manufacturer(s) of batteries and charges to be stated by the Tenderer.

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TECHNICAL SPECIFICATION - SECTION B

6.11

Reliability

6.11.1

The system and equipment design shall ensure high reliability. The failure frequency (long term average) shall be less than four failure per 100 extension in use per year. Important parts which may cause a system failure shall be duplicated. Other methods can also be considered for preventing such system failures.

6.12

External Connections

6.12.1

The contractor shall be responsible for the following External Connections to the exchange:-

6.13

(i)

All Extension and Trunk connections. Form the PABX to the MDF/IDF to the extension and trunk/junction connection.

(ii)

All PABX power connections.

(iii)

PABX and power alarms to the M/IDF and to the alarm monitoring facilities.

(iv)

Remote diagnostic facilities.

(v)

Console Sockets.

(vi)

Supply and connection to the telephones instruments.

(vii)

PABX plug points and telephone sets shall be provided at all gate huts for level crossing within 2 Km from the station. One PABX number shall be allocated to each gate hut.

Preventative Maintenance The Contractor shall give details of all routine maintenance operations which will be necessary, with particular reference to time intervals for individual maintenance functions and associated down times.

6.14

Maintenance Spares

6.14.1

The Contractor shall supply an itemised list of recommended spares giving costs.

6.14.2

The spares where ordered shall be supplied individually contained in electrostatic protective bags or envelopes which will then be contained within good quality aluminium protective transportation boxes with card slots.

6.14.3

Boxes will be labelled “Quality Assured Spares”.

6.14.4

A consumable spares kit shall be quoted for the exchange and clearly itemised in tender.

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6.15

Earthing

6.15.1

All exchange cabinets, power cubicles, termination frames and associated metalwork shall be bonded to the system’s earth busbar to be provided under this Contract.

6.16

Feature Phones

6.16.1

The Contractor shall give details of any feature telephones approved for use on the equipment which give facilities such as:Extension line status Calling line identification Single key reporter dialling Single key feature access Hands-free working or on-hook dialling

6.17

Facilities

6.17.1

The Contractor shall give details of any facilities extra to those available to extensions, trunks, consoles, or the equipment in general, and how these features may be programmed into the equipment.

6.17.2

The Contractor shall state any Technical Codes (numbers not forming part of the standard numbering range) used or inserted into routing information for the purposes of control or routing of calls in the network.

6.17.3

The following minimum facilities shall be provided: -

External Number Redial The last number dialled by a user to be automatically stored. Only one number may be stored at any one time. The new number overides the previously stored number.

-

Call Back Last Caller Allows you to call back your last internal caller without dialling the directory number. Call ext. busy. Press 70. Put down handset, when the ext. is free, your phone will ring. When you pick-up that ext. also ring.

-

Meet-me Reminder Meet-me Reminder provides a reminder service for users. At the requested time, the system automatically rings the extension.

-

Call Park Call Park places a call in a parked state, similar to hold, where it can be retrieved by any telephone. A parked call must have an access ID or Park DN.

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-

TECHNICAL SPECIFICATION - SECTION B

Flex Forwarding (follow me) Allows you to forward your calls to any station temporarily.

-

Call Pickup

-

(i) (ii)

Individual Pick Up Group Pick Up

Group call pick UP allows telephone to be arranged in groups. Directed Call Pick Up allows a caller from one pick-up group to pick up a ringing call in another call pick-up group. -

Station Padlock (Individual Padlock) Individual Padlock allows the user to alter the calls of service or category of a telephone.

-

Authorisation Code (Personal Code) - To change Personal Code. Authorisation code overides a telephone’s CCOS restriction level. This Personal Code is modified by the user.

-

Substitution Allows a user to retrieve his own extension features from another extension.

-

Three Party Conference Conference adds additional party to an established call. The conference party can be inside or outside this PABX.

6.18

Features Codes

6.18.1

The following details the minimum features which shall be provided with their proposed feature codes (alternative feature codes will be considered). Individual Abbreviated Dialling Codes` Common Abbreviated Dialling Codes Call Back Call Back Cancel Pick Up Call (Individual) Diversion Follow Me Access To Service Radio Abbreviated Dialling (Control) Enquiry Call (shuttle) Intrusion Authorization Code / Padlock Account Code Pick Up Call /Diversion Cancel Remote Cancel (from other telephone) of Pick Up Call / Diversion

*8 *9xxx 70 73 #6 + Extn. (Tenderer To Propose) *3 + Extn. #9_ Service Radi o No. #3 *7 (Tenderer To Propose) #8 #2 *5 #5

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

Timed Reminder Pick Up Call Group External Number redial Call Park Conference

TECHNICAL SPECIFICATION - SECTION B

*1 *6 *0 a) FH *2xxx b) 83 + xxxxx FH + 3

7.0

TRAIN RADIO SYSTEM

7.1

GENERAL

7.1.1

The number of locomotives, passenger trains and maintenance vehicles where the onboard train radio system, radio-based block signalling system and GPS system are to be installed shall be as per Appendix T6/b.

7.1.2

Special attention shall be given to steam locomotive (2 units) where there is no power supply available on the locomotive. The Tenderer shall submit the proposals / method statement in his Tender on how to overcome this shortfall, including the provision of battery operated (rechargeable) onboard train radio system together with radio-based block signalling and GPS systems, etc. All equipment, materials and installation for the purpose of supplying electrical power to train radio system, radio-based block signalling system and GPS system on steam locomotives shall be provided by the Contractor.

7.1.3

The Tenderer shall undertake a thorough radio signal mapping (coverage mapping) and survey and shall submit all the details in his Tender, including the proposed number and locations of base stations, repeater stations, etc.

7.1.3.1

All links from the radio base station (in train radio cabin) and repeater station to digital transmission equipment or to the nearest splice location of the optical fibre cable network shall be provided by the Contractor, including additional optical fibre cable, splicing equipment & materials, trenching and all other materials and installation works.

7.1.4

The Contractor shall undertake thorough survey to ascertain the availability of required power supply on locomotives, passenger trains and on-track maintenance vehicles.

7.1.5

If need arises to install train radio repeater tower in mid-section / in between stations, the Contractor shall also undertake site survey to ascertain the availability of the mains power supply. The installation of the radio repeater tower shall only be allowed if the mains power supply is available in the vicinity. Other modes of power supply, e.g., solar power, through running generator set, etc., shall not be allowed.

7.1.6

All relevant works and installation materials on locomotives, passenger trains and on-track maintenance vehicles for the provision of onboard train radio equipment, including antenna, shall be provided by the Contractor, including all wiring works, installation brackets, power supply converters (DC/DC, AC/DC), circuit breakers, fuses, terminals, back-up batteries, etc.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

7.1.7

The Contractor shall also communicate, arrange and work with the Commission of Multimedia and Communication of Malaysia (CMC) for the application and approval of the frequency band to be used by the train radio system on behalf of JKNS. All fees / deposits, including license fee shall be borne by the Contractor, and if duration-based, shall be paid for by the Contractor for the duration of 2 (two) years.

7.1.8

The Contractor shall provide all necessary materials (all hardware and software) and equipment for the interfacing and integration of train radio system with PABX system, GPS system, computerised train dispatching system and radio block signalling system, including all installation works.

7.1.9

The onboard radio equipment shall be integrated and interfaced with radiobased block signalling system, and may be using only a single console or on a separate console.

7.1.10

The Contractor shall provide train radio communication facilities at all level crossing gate huts, including all necessary train radio equipment, power supply, back-up power supply, lightning protection, etc.

7.1.11

Provision of Digital Audio / Voice Logging system with a minimum of 8 channels.

7.2

OPERATION REQUIREMENT

7.2.1

Coverage Requirement The new radio system shall provide radio coverage for portable usage inside trains along the railway lines between Tanjung Aru (inclusive) – Tenom (inclusive), including the tunnel (130m long, between kawang - Papar), maintenance depots, yards and all railway stations. This is to ensure that all train drivers who will carry a portable radio as a backup to the train-borne mobile radio will still remain within contact with the Control Center even in the event of train mobile radio failure. At a minimum, each railway station shall be selected as a base station site. In the event that the 14 base station sites are insufficient, the Tenderer shall propose additional sites to meet the coverage requirement. The portable radio coverage area reliability shall be at least 95%. The minimum received signal strength shall provide an audio quality equivalent to at least 5% BER.

7.2.2

User Group There are 7 types of user group in the system. 1. 2. 3. 4. 5.

Dispatcher (train controller) Train Operators Maintenance Crew Depot Staff Station Master

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

6. 7. 7.2.3

TECHNICAL SPECIFICATION - SECTION B

Gateman PABX user

Call Matrix The call requirements between the different groups are depicted in the following table: Dispatcher Dispatcher Train Operators Maintenance Crew

Train Operators

Maintenance Crew

Depot Staff

√

√

√

√

Station Master √

√

√

√ √

√

√

√

√

Depot Staff Station Master

√

√

√

√

√

√

√

Gate Hut

√

√

PABX User

7.2.4

√

√ √

Gate Hut

√

PABX User

√ √

√

√

√

Digital Voice Features The radio system shall be able to support at least the following voice features:

7.2.4.1

Individual Voice Call The digital radio unit shall be capable of two-way voice call between itself and another individual digital user.

7.2.4.2

Group Voice Call This feature shall allow users to separate voice communications into individual talkgroups. Each Group Voice Call shall be addressed to a specific group of users.

7.2.4.3

Call Alert This feature shall allow a dispatcher or digital radio unit to selectively alert another individual digital unit that the caller is trying to contact him.

7.2.4.4

Emergency Alarm The radio unit shall be capable of sending a non-voice message to notify a console operator of an emergency condition.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

7.2.4.5

TECHNICAL SPECIFICATION - SECTION B

Emergency Call Upon pressing the emergency button, subsequent PTTs shall contain an emergency indicator along with the Unit ID until the operator takes one of several actions to cancel the emergency condition.

7.2.4.6

Radio Check This feature shall allow a console operator to verify if a desired target radio is (1) turned on and functioning and (2) within the range of the system.

7.2.4.7

Selective Radio Inhibit / Uninhibit This feature shall allow a console operator to send a message out over the air that will disable a lost or stolen radio.

7.2.4.8

Remote Monitor In an emergency situation, it is important to keep tabs on what's happening in the field. This feature shall allow the console operator to remotely key the transmitter of an individual radio unit. This enables the console operator to keep in touch with live circumstances so that help can be given in an effective, efficient manner.

7.2.4.9

Scan This feature shall allow a radio unit to scan from a predetermined list of channels.

7.2.4.10 Priority Channel Scan This feature shall allow a field unit to scan one first priority channel, one second priority channel and multiple non-priority channels. 7.2.4.11 Repeater Talkaround Operation This feature shall allow digital radios to talk directly to one another without the use of RF infrastructure. 7.2.4.12 Talking Party Identification (PTT-ID or Unit ID) The Unit ID of a transmitting unit shall be embedded in the digital signaling on every transmission. 7.2.5

MOBILE DATA REQUIREMENT The radio system shall support the following data transmission:

7.2.5.1

GPS Update Each train shall be equipped with a GPS receiver. Regular GPS update from the trains shall provide the CTC the capability to view the location of each train real time.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

The trainborne equipment shall include built-in intelligence to send GPS update only once when the train is stationary to eliminate redundant and unnecessary transmission. Since the transceiver in the train is common for voice and data, voice shall have priority over data. 7.2.5.2

Train Management System (TMS) The trainborne equipment shall also allow transmission of the train health status from the TMS in the train to CTC via the radio system.

7.2.5.3

Train Block Signaling System The trainborne equipment shall provide the driver the facility to transmit a request to obtain the authority to proceed to enter the block section from the train signaling computer at the CTC via the radio system as well as to return the authority back to the CTC. An LCD will display acknowledgement messages from the train signaling computer at CTC.

7.3

SYSTEM REQUIREMENT

7.3.1

Radio Communication System Design

7.3.1.1

General

7.3.1.1.1

The JKNS radio communication system shall be a 5-channel Digital Conventional Wide Area System integrated with JKNS’s Transmission Backbone in supporting voice and data communication between various train stations, radio units, trains, depots and Centralised Traffic Control Centre (CTC).

7.3.1.1.2

The System shall consist of data gateway, comparators, digital / analog converters, repeaters, consoles, mobile radios, portable radios, repeater antenna systems including, but not limited to antennas, coaxial cables, lightning arrestors, connectors and other equipment necessary to make a complete operational system.

7.3.1.1.3

The Contractor shall provide a Graphical User Interface (GUI) based Dispatch Consoles at the CTC.

7.3.1.1.4

The Contractor shall design and provide a Trainborne Control Interface (TCI), to interface the train mobile radio with the Train Management System (TMS) to relay train health status back to the CTC.

7.3.1.1.5

The planning of the Radio Communication System’s Infrastructure shall facilitate for future expansion.

7.3.1.1.6

The proposed Radio Communication System shall be capable of operating in mixed analog and digital modes.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

7.3.1.2

TECHNICAL SPECIFICATION - SECTION B

System Configuration

7.3.1.2.1

The System shall be a five-channel VHF digital wide area conventional multicast system supporting voice and data communication.

7.3.1.2.2

The System shall consist of at least fourteen base station sites; one at each train station, to provide wide area coverage for the entire JKNS railway network. However additional base station / repeater station shall be provided to achieved the requirement as per Clause 7.2.1.

7.3.1.2.3

Comparators shall be utilized to receive, compare and vote the best audio signals from the received signals.

7.3.1.3

Frequency Band

7.3.1.3.1

The proposed system shall operate in the 146-174 MHz band and support both digital voice and data communications.

7.3.1.3.2

Frequency re-use shall be employed whenever possible to optimise frequency usage.

7.3.1.4

Seamless Roaming

7.3.1.4.1

The Radio Communication System shall support seamless roaming across sites such that all call types are maintained and handed over from site to site without re-establishment of call.

7.3.1.4.2

As a mobile unit moves into a new site covered by another repeater, the mobile unit shall lock on to a carrier with a signal strength above an acceptable threshold.

7.3.2

CHANNEL BANDWIDTH REQUIREMENT

7.3.2.1

Operation Channel

7.3.2.1.1

The desired operation channels are defined as follows: a. b. c. d. e.

Radio Channel One – Train Controller to Train Operator, GPS update,TMS transmission. Radio Channel Two – Depot and Maintenance Staff Radio Channel Three – Station Master and other station users Radio Channel Four – Emergency Channel cum Backup Data Channel Radio Channel Five – Data for Train Signalling System

However the final channel allocations shall be finalised by JKNS during installation stages. 7.3.3

Console System Requirement

7.3.3.1

Dispatch Console System

7.3.3.1.1

Two dispatch console positions shall be located in CTC; one operating as main and the other as backup.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

7.3.3.1.2

All dispatch console positions shall be connected together via Ethernet Local Area Network (LAN) for easy access and updating of information.

7.3.3.1.3

All the dispatch consoles shall be interfaced to the base stations via a console switch.

7.3.3.1.4

The console shall be operable using a mouse to access the functions instantly.

7.3.3.1.5

Each console operator profile shall be customer configurable. This includes alias assignment of resources and screen display at the operator position.

7.3.3.1.6

The dispatcher program shall follow the Microsoft™ standard and shall provide a Microsoft Windows™ screen display. The screen display shall utilize the GUI technology.

7.3.3.1.7

All radio dispatch functions shall be operable from one screen display. Operators shall not be required to access another screen display in order to perform a radio dispatch function.

7.3.3.1.8

The operator's screen configuration administration application.

7.3.3.1.9

A dispatch console database management application that is capable of programming, reprogramming and editing operator positions shall be provided.

7.3.4

Radio Base Station Requirement

7.3.4.1

General

shall

be

programmed

via

an

7.3.4.1.1

The Radio Base Station shall support digital voice and data communications.

7.3.4.1.2

The over-the-air signaling shall comply to an open standard protocol.

7.3.4.1.3

The bit rate of the over-the-air protocol shall not be less than 9600 bps.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

7.3.4.2

TECHNICAL SPECIFICATION - SECTION B

Technical Specification Radio Base Station Frequency Range

132-174 MHz

RF Carrier Spacing

30 kHz /25 kHz/12.5kHz

Mode of Operation

Half Duplex

Duplex Spacing

10 MHz

Antenna Impedance

50 Ohm

RF Connector Type

N-type 50 Ohm

Duty Cycle

Continuous

TX Output Power

25 to 100W

Modulation

Analog: FM, Digital: C4FM

TX Frequency Stability

+/- 0.0001% +/- 2.5 kHz for 12.5kHz spacing, +/- 5 kHz for 25kHz/30kHz spacing -35 dBm to 0 dBm variable

TX Maximum Deviation TX Audio Sensitivity

7.3.4.3

TX Spurious and Harmonic Emission Attenuation

80 dB

TX FM Hum and Noise

45dB(12.5kHz), 50dB(25.0kHz)

TX Audio Response

300-3000Hz : +1dB, -3dB (relative to 6dB/octave pre-emphasis)

TX Distortion

2% at 1.0kHz,@60% RSD

RX Adjacent Channel Rejection

80dB(12.5Khz),85dB(25kHz) 90dB(30kHz)

RX Sensitivity 12 dB SINAD

0.25uV

RX Sensitivity Static Bit Error(BER) 5%

0.25uV

RX Frequency Stability

+/- 0.0001%

RX Intermodulation Rejection

85dB

RX Spurious and Image Response Rejection

100dB

RX Distortion

3% at 1kHz with 60% system modulation

RX Audio Frequency

300-3000Hz : +1dB, -3dB (relative to 6dB/octave pre-emphasis)

Station Radio Communication System

7.3.4.3.1

The Contractor shall supply, install, test and commission the Radio Base Stations (including base transceivers, equipment cabinets, combiners and filters, low loss feeder, antenna and mounting system etc.).

7.3.4.3.2

The Contractor shall consult and co-ordinate with JKNS on the actual location to install Radio Base Station at the railway station.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

7.3.4.3.3

The Contractor shall provide fault reporting of the Radio Base Stations at the CTC. The Radio Base Station shall allow programming and diagnostic testing via a portable notebook computer.

7.3.4.3.3

The links between all the base station sites and the CTC shall be via JKNS’s SDH transmission system network. Preferably, the network interface is at E1 level.

7.3.4.3.4

All the base stations shall include backup power supply. The capacity of the backup power shall be sufficient to provide backup power for the base station repeaters for the duration as specified in Clause 10.12, 10.13 & 10.14 of Technical Specification – Section A.

7.3.4.4

Installation Requirement

7.3.4.4.1

All modules and associated equipment in Radio Base Stations shall be standardised and fully interchangeable regardless of location and shall be designed for ease of maintenance and fault repair.

7.3.4.4.2

Cabinets housing the radio equipment shall be of standard 19-inch rack mounted specification with height of not less than two metres shall be supplied.

7.3.4.4.3

Power connections shall be polarised, have appropriate insulation and protection to prevent electric shock, accidental shorting or wrong connection by maintenance personnel.

7.3.4.5

Back-up Power Supply – as per Clause 10.12, 10.13 & 10.14 of Technical Specification – Section A.

7.3.5

RADIO BASE STATION ANTENNA SYSTEM

7.3.5.1

General

7.3.5.1.1

The Contractor shall design the antenna system to provide the necessary coverage for the System.

7.3.5.1.2

All antenna systems shall be installed with proper lightning protection in accordance with EIA standards.

7.3.5.1.3

Antenna accessories such as cables and connectors shall be included.

7.3.5.1.4

The Tenderer shall provide specification sheets on the antennas, tower top receiver pre-amplifiers (if provided) and any other equipment deemed necessary by the Tenderer in his Tender to assure a complete system.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

7.3.5.2

TECHNICAL SPECIFICATION - SECTION B

Technical Specification Antenna Frequency Range Gain Input VSWR Input Power Antenna Impedance

132-174 MHz To be determined after coverage study 1.5:1 500W 50 Ohm

Transmission Cable Nominal Cable Size Cable Loss VSWR Impedance RF Connector Type Construction

7/8” LDF @ 150MHz 2dB per 100m @ 150MHz 1.5:1 @150Mhz 50 Ohms N-type Low Smoke, Non-Corrosive, Halogen Free

7.3.6

RADIO BASE STATION ANTENNA TOWER

7.3.6.1

General

7.3.6.1.1

The Contractor shall supply, install and construct three-legged self supporting tower in all the proposed Radio Base Station sites.

7.3.6.1.2

The Tenderer shall propose in his Tender a three-legged self supporting tower for antenna height of at least 30m.

7.3.6.1.3

The tower shall be designed to support both the antenna and its associated feeder system.

7.3.5.2 7.3.6.2.1

Design Parameter Standards The tower shall be designed using procedures and methodology outlined by, but not confining to, the following Standard: (i) (ii) (iii) (iv)

Loadings Steel Design Hot dipped galvanizing Steel Grade

(v)

Bold and nuts

EIA 222C BS 449, BS 5950 or AISC BS 729 High Tensile Steel Grade 350MPA for the tower legs and 250MPA mild steel for the bracing. Grade 3.8 for 16 mm and over

If other equivalent standards are used, the Tenderer shall submit copies of such standards as supporting documents.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

7.3.6.2.2

TECHNICAL SPECIFICATION - SECTION B

Wind Speed Basic wind speed shall be 120 km/h as accordance to BS 8100. The tower shall be designed to withstand Survivals wind speed of 160 km/h. Survival wind speed shall be interpreted as the ultimate speed of the wind at which the tower or any structural members of the tower is able to resist and beyond, which the tower or any structural members shall fail.

7.3.6.2.3

Safety Factor As a minimum, the Tenderer shall design with Safety factor for all aspects of tower to be accordance to EIA 222C standard.

7.3.6.2.4

Sway or Deflection of Tower The maximum twist or sway or deflection at any part of the fully loaded tower (inclusive of all the designed antenna accessories and radio feeders) shall not exceed 0.5 at 120km/h wind speed.

7.3.6.3 7.3.6.3.1

Beaconing Tower lighting must comply with International Standard.

(i) (ii) (iii)

sequential coloured with horizontal strips, alternately white and red for day marking blinking red lights, for night beaconing. beacon lights to be provided.

7.3.6.3.2

The width of the coloured horizontal strips, the number of lights to mount on the different levels of the tower as well as the types of lights to be used should be in accordance with the International Standard stated in the abovementioned specifications.

7.3.6.3.3

The installation of the weather photoelectric cell to regulate night/sunless day 'ON' and the connection of the tower lighting devices to the low energy panel in the transmitter room will be responsibility of the Tenderer.

7.3.6.4

Lightning Arrestor

7.3.6.4.1

The peak of the tower should have a lightning arrestor i.e.Franklin or Helita rod at least 2m above the highest point of the tower.

7.3.6.4.2

The lightning arrestor should be connected to the length of the tower skeleton with 7/0.083" copper wire and connected to the grounding system at its lower end.

7.3.6.4.3

Electrical continuity at tower mast section joints must be guaranteed by copper strips with crimped and soldered lugs.

7.3.6.4.4

The base of the tower must be connected to tower ground system under the foundation.

7.3.6.4.5

This tower ground has to be linked to the general grounding system of the station or cabin.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

7.3.7

TRAINBORNE REQUIREMENT

7.3.7.1

General

TECHNICAL SPECIFICATION - SECTION B

7.3.7.1.1

The Contractor shall be responsible for the design, installation, supervision, testing and commissioning of the complete Trainborne Radio Communication System for the locomotives, passenger trains and on-track & on-road maintenance vehicles as per Appendix T6/b.

7.3.7.1.2

The Trainborne Radio Communication System shall include the following: (i) (ii) (iii) (iv) (v) (vi) (vii) (viii)

7.3.7.1.3 7.3.7.2

Train Mobile Radio Train Radio Control Panel (TRCP) Train Communication Interface (TCI) DC / DC Converter and/or AC/DC Converter Trainborne Antenna Backup Battery (1 hr) GPS Receiver GPS Antenna

All installation of Trainborne Radio Communication System equipment shall be ruggedised and be able to withstand Train and track vibrations. Trainborne Radio Communication System

7.3.7.2.1

During mainline revenue service, the Train Driver shall operate on the CTCTrain radio channel to communicate with the Train Controller. The same channel shall also be used to send GPS update during idle time. Voice shall have priority over data.

7.3.7.2.2

When the train enters into the depot, the train radio shall operate in the depot channel to talk to the depot staff.

7.3.7.2.3

In times of emergency, the train driver shall use the dedicated emergency radio channel for communication.

7.3.7.2.4

All Trainborne radio communication equipment shall be secured and installed such that they are lockable to prevent theft in the train cabin (locomotives, passenger trains and on-track & on-road maintenance vehicles).

7.3.7.2.5

Each train mobile shall be assigned a fixed ID. This ID Identification Unit shall be a permanently programmed ID and once programmed, no human intervention shall be required or permitted to change this unique train ID number on any Train Mobile Radio that is installed in the train Cab.

7.3.7.2.6

The train ID information shall be transmitted to the CTC each time the train operator sends a RTP (Request to Proceed) transmission. The train ID shall be used as a fixed reference to identify train mobile radio ID when the Radiobased Block Signalling Computer is granting authority and permission to allow train to move to the next station.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

7.3.7.3

TECHNICAL SPECIFICATION - SECTION B

Train Radio Control Panel (TRCP)

7.3.7.3.1

Each train cab shall have a TRCP installed. The TRCP allows the Train Driver to make radio communication with the CTC or other radio users.

7.3.7.3.2

The Contractor shall ensure that the train driver would be able to initiate RTP (Request to Proceed) from the TRCP to the Train Controller. The train can proceed to the next train station only after the authority to proceed has been granted right from the Radio-based Block Signaling Computer in CTC. A handshake transmission between onboard and central equipment shall take place before an authority is granted and displayed on console (if the radio block signalling operation is on the same console for train radio system).

7.3.7.3.3

The Train Driver shall communicate with the Train Controller on the CTC Train channel. The driver shall also remain on this channel when the train is on the move.

7.3.7.3.4

The TRCP shall be equipped with a handset with PTT switch for radio operation, volume control, a LCD screen and a few keypads. The TRCP shall be turned on whenever the train power supply is connected.

7.3.7.3.5

The TRCP shall include a set of commonly use function/status keys. The TRCP shall consist of the following keys / buttons: (i)

(ii)

Function Keys: a) b) c) d)

12 numeric buttons (0-9, including ‘#’ & ‘*’ buttons) Scroll Up Button Scroll Down Button Channel Selection Button

e) f)

RECEIVE Button (to receive authority to proceed) SEND Button (to return back authority to proceed to train controller)

Status Keys: a) b) c)

Acknowledgement (ACK) Request To Proceed (RTP) 3 Spare Buttons (to be defined later)

Function Keys e) & f) and Status Keys a) & b) are included if the onboard radio block signalling console is integrated with train radio console. 7.3.7.3.6

The final wordings of the Functional Buttons shall be confirmed during the Final Design Review.

7.3.7.3.7

The TRCP shall include a bright back-lighted LCD Display (minimum 2 lines x 14 characters), or if the onboard radio block signalling console is integrated with train radio console a minimum of 2 lines x 20 alphanumeric characters is required.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

7.3.7.4

TECHNICAL SPECIFICATION - SECTION B

Train Communication Interface

7.3.7.4.1

The function of the Train Communication Interface (TCI) is for the TRCP, GPS receiver and TMS to interface with the trainborne mobile radio. The trainborne mobile radio in turn transmits information from these equipment to the CTC.

7.3.7.4.2

Serial Communication shall be employed to use between a. b. c.

7.3.7.5

TCI and GPS receiver TCI and Trainborne Mobile Radio TCI and TMS

Trainborne Antenna

7.3.7.5.1

The Contractor shall recommend the placement of the antenna on the Train cab. The antenna shall be configured to optimise the reception and transmission of voice and data information.

7.3.7.5.2

The antenna shall be of an extremely rugged low profile design that shall withstand the effects of mechanical vibration, dust accumulation and other physical hazards typical of above ground railway environments.

7.3.7.5.3

Where applicable, the antenna feed shall consist of pre-terminated, double screened, flexible, 50 Ohm, RF feeder cable. The cable shall be crimp terminated in a “N’ type female connector at the antenna end. The feeder routing shall be agreed by JKNS to avoid proximity with sources of interference, such as fluorescent lights, air compressor, traction equipment, etc.

7.3.7.5.4

The Contractor shall supply the antenna together with all the necessary antenna installation accessories such as bolts, nuts, washers, screw, plug and socket conectors, etc. for the installation.

7.3.7.6

Installation Requirement

7.3.7.6.1

The Contractor shall be responsible for the installation of all radio equipment, which shall consist of cabling, associated connectors and terminal strips, antenna system, power supply units, Train Mobile sets, Train Radio Control Desk and all mounting brackets for all equipment. All cables supplied shall be adequately screened. The Contractor shall investigate, check and propose a suitable location for the proper storage and installation of all trainborne radio equipment.

7.3.7.6.2

The Contractor shall propose and submit the mounting location on-board the Train for the Trainborne Radio Communication equipment for approval by the engineer prior to installation. Radio equipment mounted shall be adequately protected against shocks and vibrations using shock absorbing brackets and mountings. The system equipment sub assemblies and units shall also be provided with suitable and comprehensive earthing. The AC/DC and/or DC/DC converter shall be provided with its own earthing. The Contractor shall submit earthing arrangements to JKNS for approval.

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

TECHNICAL SPECIFICATION - SECTION B

7.3.7.6.3

The TRCP shall be installed on the Train Operator Desk. The mounting shall provide a secured mounting to withstand shock and vibrations.

7.3.7.6.4

Power connections shall have appropriate insulation and protection to prevent electric shock, accidental shorting or wrong connection by maintenance personnel.

7.3.7.6.5

All cables shall be clearly labelled using approved cable markers.

7.3.7.6.6

All cabling and terminations shall be pluggable using connectors with cables neatly laced and concealed.

7.3.7.7

Other Requirements

7.3.7.7.1

All Trainborne Radio Communication equipment and associated equipment shall operate from a low voltage direct-current (dc) nominal source, which shall be obtained by means of a AC/DC or DC/DC converter supplied by the Contractor. This converter shall transform the available power supply onboard the locomotives, passenger trains and on-track maintenance vehicles into the desired isolated dc power supply for the radio equipment.

7.3.7.7.2

The Contractor shall liase with JKNS on the provision of 12Vdc for the Trainborne Radio Communication equipment and to determine the characteristics of the Train power supply. The Contractor shall make the necessary provision to suppress spikes and any other interference of whatever nature likely to be experienced from the in-train power supply. All cables supplied by the Contractor shall be adequately screened.

7.3.7.7.3

All cables used for the Trainborne Radio Communication equipment shall be flame retardant, halogen free, low smoke emission and adequately screened. Cables shall be subjected to large-scale flammability test specified in IEC 332 Part 3.

7.3.7.7.4

Fixed wiring for the Trainborne Radio Communication equipment and associated equipment shall be the responsibility of the Tenderer.

7.3.7.7.5

The Contractor shall ensure that all Trainborne Radio Communication equipment and the associated equipment supplied under this Contract for fitting to mountings on the train shall be completely wired to polarise multiway sockets. Energy feed shall terminate in sockets and not on plugs.

7.3.7.7.6

The Contractor shall liase with JKNS to provide an earthing arrangement for the Trainborne Radio equipment. The earthing design shall minimise the noise voltage generated by currents from other circuits flowing through a common earth impedance and to avoid creating earth loops susceptible to magnetic field and differences in potential.

7.3.7.7.7

The Contractor shall liase with JKNS to ensure that the TRCP, Train Mobile Radio, cable routes, power supplies, antenna and associated equipment are installed in such a manner that they are accessible and maintainable by JKNS staff.

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7.3.7.7.8

7.3.7.8

TECHNICAL SPECIFICATION - SECTION B

The Contractor shall ensure that upon every initialisation, the Trainborne Radio Equipment shall perform a self-diagnostic routine test. An audible tone shall alert the train driver the state of the Train Radio System. Technical Specification

7.3.7.8.1

The technical specifications of the Trainborne mobile radios and associated equipment are listed below:

7.3.7.8.2

Mobile Radio Set The tenderer shall include in their bid 50 units of mobile radio sets. These radios are for the locomotives, passenger trains and on-track & on-road maintenance vehicles. General Dimensions - Transceiver

51mm x 180mm x 218mm (HxWxD) Weight - Transceiver < 2800g Dimensions - standard control head 51mm x 180mm x 56 mm (HxWxD) (HxWxD) Mode Capability 255 Channel Selection Scrolling Control Volume Selection Scrolling Control Rugged & Reliability MIL STD 810C/D/E Display 1 Line/ 8-Character Fluorescent Modulation C4FM of QPSK-C Family Channel Bandwidth 12.5kHz/25kHz/30kHz Voice Coding Method IMBE Forward Error Correction Golay Code Frequency Range 136-174MHz TX Output Power 25 to 35W TX Maximum Frequency Separation Full Bandsplit TX Frequency Stability +/- 0.00025% TX Modulation Limiting +/- 2.5 kHz for 12.5kHz, +/- 5 kHz for 25kHz/30kHz TX FM Hum and Noise 40dB for 12.5kHz, 50dB for 25kHz/30kHz TX Emission -70dBc TX Audio Response 300-3000Hz : +1dB, -3dB (relative to 6dB/octave preemphasis) TX Distortion 2% at 1.0kHz,@60% RSD RX Maximum Frequency Separation RX Adjacent Channel Rejection

Full Bandsplit 70dB(12.5Khz),80dB(25kHz) 80dB(30kHz) RX Analog Sensitivity 12 dB SINAD 0.3uV RX Digital Sensitivity Bit Error(BER) 0.3uV 5% RX Intermodulation 85dB RX Spurious Response 83dBC RX Audio Output 5W @3% Distortion TENDER FOR REHABILITATION AND UPGRADING OF INFRASTRUCTURE WORKS FOR JABATAN KERETAPI NEGERI SABAH

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PACKAGE B - SIGNALLING & COMMUNICATION WORKS

7.3.7.8.3

TECHNICAL SPECIFICATION - SECTION B

Train Radio Control Panel General Function/Status Keys

:

Lighted keypad / splash and dust proof

Emergency button

:

Lighted when activated / clear perspex flap cover.

Palm Microphone Handset Type : User Interface

/ Handset type :

Back-lit LCD providing a minimum of 2 lines of approximately 14 characters (2 x 20 characters if block signalling console is integrated with train radio console). Pre-defined Function/Status Keys

Auxiliary Interface

7.3.7.8.4

7.3.7.8.5

:

Connection to a personal computer for terminal software up-date. Connection to data terminal for data transmission (for GPS and block signalling system).

DC/DC Converter General Input Voltage

:

Output Voltage Output Current Ripple Factor Other Protection

: : : :

Depending on Vdc available, or if only Vac available – to use AC/DC converter. 13.8Vdc ± 20% 14 A at Full Power 2% or better at the output Short-circuit protection Over voltage protection Overload protection Self recovery

Antenna General Impedance Maximum Input Power VSWR :

: :

Radiating Pattern

:

50 Ohm 50W Less than 2.0 over the full operating bandwidth Omni-Directional

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TECHNICAL SPECIFICATION - SECTION B

7.3.8

FIXED STATION RADIO REQUIREMENT

7.3.8.1

General

7.3.8.1.1

The tenderer shall include in their bid 36 units of fixed station radios. These radios are for the station masters (railway stations) and gatemen (gate huts).

7.3.8.1.2

Each fixed station radio shall be equipped with a desk microphone (gooseneck type), speakers and magnetic mount antenna.

7.3.8.1.3

The performance specification for the fixed station radio shall be in accordance with clause 7.3.7.8.2.

7.3.9

HANDPORTABLE RADIO EQUIPMENT

7.3.9.1

General

7.3.9.1.1

The tenderer shall include in their bid 185 units of portable radios.

7.3.9.1.2

All portable radio units shall be designed in accordance with the requirements of Part 90 of the FCC Rules and the appropriate EIA and related agency standards.

7.3.9.1.3

All portable radios communication units. operation.

7.3.9.1.4

The units shall operate from single self-contained, rechargeable nickelcadmium batteries.

7.3.9.1.5

The portable radios shall have a rotary channel selector switch located at the top of the radio to enable the user to select the desired channel position.

7.3.9.1.6

All portable units shall be furnished with a leather carrying case.

7.3.9.2

shall be self-contained, hand held, two-way The size and construction shall permit one hand

Technical Specification Handportable Radio Dimension (without battery)

16.71cm

Weight(with battery) Battery Life Rugged & Reliability Display Modulation

<710g 5-5-90/8 hrs MIL STD 810C/D/E 4 lines with 12 characters per line C4FM of QPSK-C Family

Channel Bandwidth

12.5kHz/25kHz/30kHz

Voice Coding Method

IMBE

Forward Error Correction

Golay Code

Frequency Range

136-174MHz

TX Output Power

1 to 5W

TX Frequency Stability

+/- 0.00025%

x 6.19cm (HxWxD)

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4.19cm

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TX Modulation Limiting

RX Analog Sensitivity 12 dB SINAD

+/- 2.5 kHz for 12.5kHz, +/- 5 kHz for 25kHz/30kHz 42dB for 12.5kHz, 48dB for 25kHz/30kHz -70dBc 300-3000Hz : +1dB, -3dB (relative to 6dB/octave pre-emphasis) 2% at 1.0kHz,@60% RSD 67dB(12.5Khz),78dB(25kHz) 78dB(30kHz) 0.25uV

RX Digital Sensitivity (BER) 5% RX Intermodulation RX Spurious Response RX Audio Output

78dB 75dBC 0.5W @3% Distortion

TX FM Hum and Noise TX Emission TX Audio Response TX Distortion RX Adjacent Channel Rejection

7.3.10

TECHNICAL SPECIFICATION - SECTION B

Bit Error 0.25uV

DIGITAL AUDIO / VOICE LOGGING AND REPLAY SYSTEM

7.3.10.1 General 7.3.10.1.1 The Contractor shall provide a recording system to record and archive all radio communications (including train radio – PABX links) and to provide a search and replay facilities within CTC. 7.3.10.1.2 The digital voice logging modules shall have the capacity to record and archive all voice channels simultaneously. The Contractor shall propose a suitable hard disk capacity for the on-line storage. 7.3.10.1.3 The digital voice recording system shall operate continuously for 24 hours per day. 7.3.10.1.4 The recorder shall have very high availability with in-built local hard disk resilience (RAID5 redundant (N + 1) configuration). It shall be possible for JKNS to remove and replace a failed RAID hard disk. 7.3.10.1.5 It shall be possible to utilise a single Voice Logging Module to automatically and seamlessly replace a failed Voice Logging Module in a hot-standby configuration without loss of data on changeover to the standby configuration. An N + 1 configuration shall be provided so that all voice inputs connected to the failed Voice Logging Module shall be automatically transferred to the hot-standby unit to continue recording without any loss of data. 7.3.10.1.6 Access to the digital voice recording system shall be password protected to guard against unauthorised access and unauthorised monitoring of calls. Password shall have as a minimum of 6 characters. 7.3.10.1.7 A complete digital audio / voice logging and replay system shall be proposed by the Tenderer in his Tender, including all hardware and software.

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TECHNICAL SPECIFICATION - SECTION B

7.3.10.2 Logging Recorder Interface 7.3.10.2.1 For the purpose of railway safety operation and security, the train radio system shall be capable of providing an interface to an industry standard logging recorder. 7.3.10.2.2 This logging recorder interface shall be capable of recording at least 8 channels simultaneously on separate tracks. 7.4

SYSTEM RELIABILITY AND REDUNDANCY

7.4.1

Console Switch Redundancy and Console Backup

7.4.1.1

Console Switch

7.4.1.1.1

The console switch shall be designed such that no single failure will disable more than one radio channel or more than one operator console.

7.4.1.1.2

The console switch modules shall be designed with the capability to perform self diagnostics check and to perform specific self-healing action should a malfunction be detected.

7.4.1.2

Backup Dispatcher Console

7.4.1.2.1

A backup dispatcher console shall be provided to take over all control and call operation if the main console fails.

7.4.1.2.2

This backup console shall also be easily converted to operate concurrently with the main console in case there is a need for two console positions operation.

7.4.1.3

Backup Base Radio Unit

7.4.1.2.1

In the event of total console system failure, one VHF base radio unit shall be provided to keep the CTC in constant radio communication with the train operator and other radio users.

7.4.1.2.2

The base radio units shall be capable of operating in digital modes of radio communications.

7.4.1.2.3

Base radio units shall be capable of being software programmable programmed either in the selected vendors manufacturing facility or at a JKNS designated location.

7.4.2

MOBILE DATA REDUNDANCY

7.4.2.1

Radio Network Data Controller

7.4.2.1.1

7.4.2.2

The Data Controller shall be backup by a redundant controller. In the event of Main Controller failure, the Redundant Controller shall take over the as the Main Controller to take over the responsibility for data communication. Redundant Radio Channel

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7.4.2.2.1

The Emergency Channel shall also operate as a backup data channel. In the event of a repeater failure on the data channel, the emergency channel shall be used for data transmission .

7.5

FAULT MANAGEMENT SYSTEM

7.5.1

General

7.5.1.1

Fault Management System Design

7.5.1.1.1 7.5.1.2

TECHNICAL SPECIFICATION - SECTION B

The System shall consist of a Fault Management Terminal at CTC and Remote Terminal Units at train station and CTC. Centralised Traffic Control Centre (CTC)

7.5.1.2.1

A Fault Management Terminal shall be provided at CTC to monitor the radio equipment alarm and environmental alarms from all the stations.

7.5.1.2.2

This Fault Management Terminal can be connected to the Fault Management System by using either TCP/IP or MOSBUS protocol.

7.5.1.2.3

A RTU shall be used in CTC to send the environmental alarms such as door alarm, smoke alarm, temperature alarms..etc from their respective sensors to the Fault Management Terminal.

7.5.1.3

Railway Stations

7.5.1.3.1

A RTU shall be installed in each base stations to collect radio alarms from the base station and environmental alarms from sensors for door, smoke, temperature, etc.

7.5.1.3.2

The RTUs shall pass the alarm information to the Fault Management Terminal at the CTC via JKNS’s SDH.

7.5.1.3.3

The RTUs shall report at least PA, receiver and wireline failures.

8.0

GPS TRAIN LOCATING SYSTEM

8.1

The Contractor shall provide a Global Positioning Satellite System (GPS) for the purpose of a real time train location within JKNS railway network. The train location data shall also be used in computerised train dispatching system and radio-based block signalling system to enhance the safety of the train operation.

8.2

The GPS system to be provided shall conform to relevant international standards outlined in Technical Specification – Section A.

8.3

The GPS system to be supplied shall be compatible and be interfaced & integrated with the train radio system, computerised train dispatching system and radio-based block signalling system. All equipment and materials for the

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TECHNICAL SPECIFICATION - SECTION B

interfacing and integration of GPS to train radio system, computerised train dispatching system and radio-based block signalling system, including modification / upgrading of softwares, installation works, etc., shall be provided by the Contractor. 8.4

The real time train location display shall be integrated with the radio-based block signalling display and shall be displayed on a single VDU.

8.5

The coordinates for Stop Boards at all stations shall be incorporated in the GPS system and also be integrated with radio-based block signalling system for the detection of train passing through this board without an authority to enter the block section. If this happened, the radio-based block signalling system / computerised train dispatching system shall produce an audible and visual alarm at the VDU located in CTC and also at the console onboard of train.

8.6

The distinctive display shall also be incorporated on VDU for displaying the train passing the Stop Board. This can be achieved by using a different display colour for stop board locations / coordinates. This Stop Board location display shall flash when the train passed the Stop Board without authority to proceed transmitted from radio-based block signalling computer in CTC. The audible alarm shall also be turned on.

8.7

The Contractor shall make a thorough survey on the locomotives / passenger trains / rail-based maintenance vehicles to ascertain the place to mount the GPS antenna and receiver, as well as to ascertain the availability of the required power supply to operate the system.

8.8

All relevant works and installation materials on locomotives, passenger trains and on-track maintenance vehicles shall be provided by the Contractor, including all wiring works, installation brackets, power supply converters (DC/DC, AC/DC), circuit breakers, fuses, terminals, surge protection, etc.

8.9

The system shall be user configurable in order for future addition or modification of specific train location points / coordinates for the purpose of enhancing the safety of train operation through radio-based block signalling system.

8.10

The GPS system to be supplied shall come together with all software for onboard the train and central equipment. This shall include all software and hardware integration and interfacing to train radio system, computerised train dispatching system and radio-based block signalling system, including all installation materials and works, for the central equipment at CTC.

8.11

The Tenderer shall propose in his Tender the details of the GPS system to be supplied and the method of integration and interfacing with the computerised train dispatching system and radio-based block signalling system, as well as with the train radio system.

8.12

All fees / deposits pertaining to GPS operation, if any, shall be borne by the Contractor, and if duration-based, shall be paid for by the Contractor for the duration of 2 (two) years.

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TECHNICAL SPECIFICATION - SECTION B

9.0

COMPUTERISED TRAIN DISPATCHING SYSTEM AND RADIO-BASED BLOCK SIGNALLING SYSTEM

9.1

The system to be provided shall conform to relevant international standards outlined in Technical Specification – Section A.

9.2

The type of system to be supplied shall depends on how the system is referred to / termed by the manufacturer or supplier of the system, but the system shall have, at the least, the following features:1)

A fail-safe radio-based block signalling operation.

2)

Issuance and releasing of authority to enter the block section via block authority display at console onboard of train. The console shall also be integrated with train radio system for the transmission of voice and data.

3)

A duplicated VDU based operation control (dispatch consoles) at CTC, with all the station layouts, indications, alarms, event logging, status of the block sections, train location mapping, etc. The dispatch consoles shall be of Graphic User Interface based (GUI).

4)

Heavily coded digital messages through radio transmission for safety, with handshake procedures.

9.3

The Contractor shall provide a fail-safe computer / microprocessor safety interlocking system for radio-based block signalling system. This to ensure that there is no possibility of an authority to enter into the block section being issued to two trains for the same block section. The computer / microprocessor shall be duplicated to give high availability and reliability.

9.4

The GPS system, by means of detection of coordinates of various locations to mark the boundary of block section (Stop Board), shall be incorporated in the radio-based block signalling system to enhance the safety of the block signalling system.

9.5

The system shall check for valid train number / train run number, which to be entered to the system by the controller at CTC at the starting point of journey of the train prior to issuance of the authority to enter block section.

9.6

The system shall also check that the train is in logical place for any authority requested. This may be done via train location data of the GPS system.

9.7

For a running through train, the system shall be able to issue an authority to enter a long block section, e.g., TG ARU - BEAUFORT.

9.8

The Stop Board and Clear of Loop Board shall be supplied and installed by the Contractor at all stations. The dimensions and colours of the boards and the lettering shall be as per Appendix T6/a. The boards shall be made of aluminum or galvanised iron / steel plate with a thickness of not less than 3.0mm. The post for the board shall be made of galvanised iron pipe (G.I. pipe) of a diameter not less than 102.0mm (4 inches).

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TECHNICAL SPECIFICATION - SECTION B

9.9

The colours for the Stop Board and Clear of Loop Board to be provided shall be of the reflective type.

9.10

The Stop Board shall be installed at 2 metres from the fouling mark.

9.11

The Clear of Loop Board shall be installed at 300m from the main/loop point as per Appendix T7/a.

9.12

In the event of the train has passed the Stop Board without obtaining the authority to proceed (block authority), an audible and visual alarm shall be produced at central equipment and at train onboard equipment. This shall be done via GPS coordinates of the Stop Boards which to be incorporated and integrated into the radio-based block signalling system / computerised train dispatching system.

9.13

The onboard radio block signalling console shall display the name of the station at the start of the block authority and the station at the end of the block authority once the authority to enter the block section is obtained from the controller at CTC. For example, if the train has obtained the authority to enter block section between Tg Aru and Putatan, it shall display “TG ARU – PUTATAN”. It shall also display a red indication light if there is no authority to enter the block section is obtained, and the station names shall be blanked.

9.14

For a through running train, the system shall also be able to issue an authority for long block section, e.g., TG ARU – BEAUFORT.

9.15

The radio block signalling console shall have all the necessary displays and buttons for the purpose of requesting, receiving and sending back (releasing) the authority to proceed from / to CTC and also capable to display all the acknowledgements & alarms. The console shall have a bright back-lighted LCD display with a minimum of 2 lines x 20 alphanumeric characters.

9.16

The radio block signalling console may be integrated with the onboard train radio set on a single console or on a separate console by itself, with all the necessary links and connections to the onboard train radio system.

9.17

All station layouts shall fit on one control centre PC screen, and the PC shall be duplicated for reliability and availability.

9.18

All voice communications shall be automatically logged into Digital Voice Logging System.

9.19

Heavily coded radio transmission with handshake procedures shall be employed.

9.20

Event logging and alarms shall be incorporated in the system.

9.21

The number of locomotives, passenger trains and maintenance vehicles which to be equipped with onboard radio block signalling system shall be as per Appendix T6/b. Special attention shall be given to steam locomotive (2 units) where there is no power supply available on the locomotive. The Tenderer shall submit the proposals / method statement in his Tender on how to overcome this shortfall, including the provision of battery operated

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TECHNICAL SPECIFICATION - SECTION B

(rechargeable) radio block signalling units, etc. All equipment, materials and installation for the purpose of supplying electrical power to train radio system, radio block signalling system and GPS system on steam locomotives shall be provided by the Contractor. 9.22

The system to be supplied shall come together with all software for onboard the train and central equipment. This shall include all software and hardware integration and interfacing to train radio system and GPS system, including all installation materials and works for the central equipment at CTC.

9.23

All relevant works and installation materials on locomotives, passenger trains and on-track maintenance vehicles shall be provided by the Contractor, including all wiring works, installation brackets, power supply converters (DC/DC, AC/DC), circuit breakers, fuses, terminals, surge protection, etc.

9.24

The Tenderer shall propose in his Tender the details of the system to be supplied, together with method statement on how the integration and interfacing with GPS system and train radio system to be done.

10.0

TRAILABLE SELF NORMALISING POINT

10.1

The trailable self-normalising point shall be suitable to be used with point & crossing / turnout of rails using BS 80A.

10.2

The trailable self-normalising point shall be of hydro-mechanical type which requires no electric power. The time delay mechanism which hold the switch rail after the first wheel trailed through shall be incorporated.

10.3

The first wheel of the train which trailed through shall unlock the locking device of the point (claw / clamp lock, etc.) and once the wheel has cleared the blade, the time delay mechanism shall be operated.

10.4

The point indicator shall be provided to indicate the status of point for both main/loop points. If the point is set correctly and the switch rail flushed correctly to the stock rail, the point indicator shall show yellow aspect. The point indicator shall be installed at a minimum of 20 metres from the point, and may vary according to sighting distance of the point indicator which shall not be less than 200 metres.

10.5

The point electrical detection mechanism shall be able to detect a point split of 2.5mm and larger (≥2.5mm) measured at 15cm (6 inches) from the tip of switch rail. This will cause the yellow aspect of the point indicator to extinguish.

10.6

For station with siding point, the siding point shall be operated by Single Lever Ground Frame (SLGF) as shown in Appendix T7/a with Annetts Lock installed permanently at the lever, or any other type of locks that will become non-retrievable once the key is inserted and operated inside the lock. The Tenderer shall propose the type of mechanical lever and lever lock in the Tender. The SLGF operated siding point shall also be detected and interlocked with the point indicator. For the point indicator to give proceed aspect (yellow), the siding point shall be proven set to normal in the point indicator circuit.

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10.7

The SLGF operated siding point shall also be connected to trap point. The position of the switch blade for the siding point shall also be detected by means of electrical detector, and be incorporated in the point indicator circuit.

10.8

A departing train shall be able to trail through the point from the wrong direction at reduced speed without damaging the equipment.

10.9

A throw-over lever or mechanical lever (lockable) shall be provided to facilitate manual operation of the self-normalising points to the reverse position (depending on the position of the points normally set with respect to the direction of train travel) as necessary for shunting or for entry to the wrong direction. The setting of the points to reverse shall cause the point indicator to extinguish.

10.10

The point equipment supplied shall be so designed such that its operating integrity and reliability shall relatively tolerate varying track and local climatic conditions.

10.11

The trailable self-normalising points to be supplied shall be of a proven type having a good track record. The Tenderer shall submit the letters from railway organisations that are currently using the similar type of point to be supplied under this Contract to prove its reliability and efficiency.

10.12

The Distant Board shall be installed at both approach sides to the station at a distant of not less than 1000 metres from the point indicator at level grade (may vary depending on the gradient), depending on the availability of sighting distance of 300 metres. The Distant Board shall conform to KTMB’s specifications.

10.13

The required number and location of the trailable self-normalising points, single lever (SLGF) operated siding points, point indicators, Stop Boards & Clear of Loop Boards to be installed shall be as per Appendix T7/a.

10.14

The height of facing point indicator from the rail level shall conform to Clause 11.7.6 of Level Crossing Protection System, except that the indicator is only a single aspect signal with yellow aspect. The materials and installations of the point indicator shall conform to Clause 11.7.7, 11.7.8, 11.7.9, 11.7.11, 11.7.12 and 11.7.13 of the similar section.

10.15

The Tenderer shall propose in his Tender the details of the trailable selfnormalising point, lever operated siding point (with Annetts lock or any other suitable lock), point indicator, electrical point detector, etc., to be supplied under this Contract.

11.0

LEVEL CROSSING PROTECTION SYSTEM

11.1

General

11.1.1

The specification covers the design of the system, the supply and installation of all materials and equipment required for the new level crossing protection system for 22 (twenty-two) crossings, including electrically operated barriers,

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TECHNICAL SPECIFICATION - SECTION B

gate signals, control equipment, highway crossing signals and alarms, power supply, road traffic lights, etc. 11.1.2

All measurements indicated in the drawings are approximately only. Tenderers are requested to visit the sites to ascertain the exact locations and measurements, which may differ from the drawings in the Appendices due to site conditions and requirements.

11.1.3

The locations and requirements at respective level crossings shall be as per Appendix 8/a.

11.1.4

The scope of works include the installation of colour light signals. The signal heads including optical system, filament changing relay, lamp transformer, signal posts and foundation and all other materials necessary for the operation of the signals shall be supplied and installed by the Contractor.

11.1.5

The Contractor is also required to dismantle, where relevant, the existing mechanical gates / barriers at all sites, remove all dismantled equipment from the sites and hand the dismantled equipment to a designated representative of the Employer.

11.1.6

If the existing concrete foundations of the mechanical gates / barriers should obstruct installation works, they shall be broken up by the Contractor who shall also be required to remove superfluous materials and restore the environmental conditions at sites.

11.1.7

The Tenderer shall make a thorough survey as to ascertain the crossings of utilities pipes / cables under or over the track before submitting the Tender. If the shifting of these pipes / cables are required to give way for the installation of level crossing protection equipment, the cost shall be included in the Tender. In the event of SESB power cable crossing over the track is obstructing the movement of the barriers to be constructed, the Contractor shall make all the necessary arrangement with SESB to shift / divert the cable. All costs shall be included in the Tender.

11.1.8

It is the Contractor’s responsibility to communicate, arrange and work with Local Authorities (JBA, SESB, JKR, STMB, District Councils, etc.) prior to or during the installation of level crossing protection system, road traffic lights, barrier machines, etc., to avoid damaging the existing utilities, and to conform with the regulations and requirements of the local authorities, where applicable.

11.1.9

All work shall be carried out in such a manner that disturbances to railway operations are kept to the absolute minimum. Any existing level crossing equipment at the sites concerned shall remain in use until the level crossing protection equipment installed under the Contract is ready to be commissioned.

11.2

Relays and Relay Racks

11.2.1

The signalling system shall make use of relays as switches for all control, interlocking, safety and indication functions. Semiconductor devices may also be used subject to approval by the Engineer, but only in particular situations

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where their use is shown to have advantages without any impairment to safety and system reliability. 11.2.2

All relays of the safety circuits shall conform to the type generally termed signal relay, and have contacts depending on each other.

11.2.3

Contacts of the relays shall be rated so as to withstand the maximum current loading occurring in the circuits without impairing the safety and performance of the circuits.

11.2.4

The rated operating voltage of the relays shall not exceed 50Vdc or 30Vac.

11.2.5

The relays shall be most carefully made from high quality materials.

11.2.6

Relays mounted by the manufacturer shall be subjected to a minimum test voltage of 2000Vac applied between the “live” and insulated or earthed metallic parts.

11.2.7

Relays or groups of relays must be of the plug-in type and interchangeable within the same type of relays or relay groups.

11.2.8

Different type of relays or group relays shall be non-interchangeable with each other. The plug-in base of the relay or relay group must have a device to prevent a relay or relay group being installed in the wrong place.

11.2.9

The relays or group of relays shall be enclosed in dust-proof metal or plastic casing and provided with a transparent window in front. The condition of the relays, that is, whether energised or deenergised, shall be easily ascertained through the window.

11.2.10

The front of these relays or relay groups shall carry labels showing the respective normal condition of the relays and relay groups respectively, in order to facilitate maintenance.

11.2.11

Any relay or relay group connected with circuits carrying voltages in excess of 110Vac or 150Vdc shall be mark with a warning sign.

11.2.12

The relay racks shall be of rugged construction and mounted so as to allow easy access in front and at rear for maintenance.

11.2.13

Relay racks shall be mounted inside the special weatherproof outdoor cabinet or box install beside the gate hut at each level crossing.

11.2.14

Power supply equipment circuit breakers, fuses, battery charger and so forth shall be mounted on a separate rack.

11.2.15

Adequate precautions must be incorporated in the equipment design to prevent electric shock to maintenance personnel due to accidental contact. In particular, all terminals, cables and components with voltages in excess of 110Vac or 150Vdc shall be clearly identified and enclosed so as to prevent accidental contact.

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11.2.16

The metal frame of the relay racks must be provided with good low resistance connection to earth.

11.2.17

The relay racks must be factory pre-wired and factory pre-tested, so as to keep site installation to a minimum. All terminal connections required of the relay racks shall be carried to distributors on the top of the relay racks. Also plug-in cable connectors may be used to facilitate cabling between racks.

11.2.18

All external cables shall be directly connected to screw-type terminals with spring loaded and isolating links type or Insulation Displacement Connection type with isolating links on terminal banks in a cable rack or frame. It must be possible to easily isolate the external cables without having actually remove the cable from the terminals.

11.2.19

The individual cable conductors shall be identified by suitably inscribed cable tags or markers.

11.2.20

A detailed description of the relays and relay groups being supplied and their specifications shall be submitted with the Tender.

11.3

Control Panel and Operation of Level Crossing

11.3.1

For the respective level crossings, the control of traffic lights, barriers and gate signals (railway signals) shall be by means of a Local Control Panel (LCP) at the get hut.

11.3..2

The operation by the LCP shall only be possible when key operated switch is set to ON position. Please refer to Appendix T8/b. When the switch is at ON position, a white indication lamp shall display steady light.

11.3.3

The level crossing equipment shall only be controlled from the LCP. It shall be possible to remove the key only in OFF position. Three keys shall be supplied.

11.3.4

Light Emitting Diodes (LED) shall be used as indicating lamp on Control Panels. However, subject to approval by the Engineer, it shall be permissible to use filament lamps in some situations, where necessary, in order not to complicate the circuitry unduly.

11.3.5

Each control panel shall be provided with three pushbutton switches coloured black, green and red and three indicating lamps showing white, green and red light respectively for control of road traffic lights, highway crossing signals and alarms and the barrier machines. At the left side of the black pushbutton two indicating lamps showing red and green light shall be provided to indicate the aspect status of traffic light. In addition the panel shall also be provided with a green push button on each side, and a common red pushbutton in the middle, together with red and green indication lamps mounted at the side of the green pushbuttons for the control of rail signals. The red pushbutton shall also come together with a red indicating lamp (flashing red). On the left hand corner, a 2 fixed position key operated switch shall be incorporated for switching the LCP to either ON or OFF and 2 white indication lamp to indicate either position of the switch. To the left of this red pushbutton shall be a white indicating lamp

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(flashing white) for filament failure. Details of the control panel is given in Appendix T8/b. 11.3.6

The LCP shall be mounted on the sturdy base plate. The whole assembly shall be installed inside the gate hut, giving consideration of the positioning of the LCP to get the most view of the crossing.

11.3.7

The black pushbutton (AMARAN JALANRAYA) when activated must first cause the road traffic light to change from green to yellow and then to red. When the traffic light is proven at red, the highway crossing signals and alarms shall then operate. The words “AMARAN JALANRAYA” which mean “Highway Alarm” in the Malaysian Language shall be inscribed below the black pushbutton. The white light which shall be placed above the black pushbutton, shall display a steady light if all the Highway Crossing Signal lamps and alarms are working and shall not display any light if any lamp or alarm should fail to operate. The red and green lights shall also be placed at the left side of this pushbutton to indicate the aspect status of the traffic light.

11.3.8

The green pushbutton (TURUN PENGHALANG), when activated, shall cause the barrier motors to lower the barriers across the road and shall also cause the boom lights (see section on Barrier Equipment) to be lighted. It shall have the words “TURUN PENGHALANG” which mean “lower barriers” inscribed below it. When the barriers have reached their final horizontal position and when all boom lights have lighted, the green lamp which shall be placed above the green pushbutton shall display a steady light. If any barrier or boom light should fail, the green lamp shall not display any light.

11.3.9

The red pushbutton (NAIK PENGHALANG) is used for cancelling the Highway Crossing Signals and alarms and raising the barrier (the boom lights are cancelled by the barrier when they have reached their final vertical rest position), and shall have the words “NAIK PENGHALANG” which mean “raise barriers” inscribed below it. When traffic light signals are also provided, they shall change to green only after all the barriers have reached their final vertical positions. The operation of this pushbutton shall only effective if the rail signals has been reset to danger and the timer for the reset pushbutton has timed out.

11.3.10

The red lamp which shall be placed above the red pushbutton (NAIK PENGHALANG), shall become illuminated when the button is depressed, as a confirmation that the cancelling and raising sequence mentioned above is in operation and shall remain lit if any malfunction should occur. When the system has normalised, i.e. all barriers are up, all highway crossing signals, boom lights and alarms are inoperative, the red light shall itself be extinguished (when the last barrier has attained its final vertical rest position and the traffic lights are back to green aspect).

11.3.11

The additional green pushbutton (SEMBOYAN NAIK / SEMBOYAN TURUN) together with red and green indication lamps are provided for control and indication of rail signals for each direction of travel. A common red pushbutton (PEMBATAL SEMBOYAN) together with red indication and a filament failure warning lamp (white) are also be provided.

11.3.12

The green pushbutton shall be used to set the respective rail signal to green. The word “SEMBOYAN TURUN” and “SEMBOYAN NAIK” shall be inscribed

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below the respective pushbutton, according to the direction. Such operation of the green pushbutton shall be effective only if all the barriers at the crossing have been lowered across the road. It shall be possible only for one rail signal to be set at any one time. 11.3.13

The red and green indication lamps provided with respect to each signal shall indicate the condition of the signal aspect (that is, a red indication when the signal is displaying the red aspect and green indication when the signal is displaying the green aspect). The white filament failure indication lamp shall show a flashing indication if any of the filaments on the signals have failed.

11.3.14

The red pushbutton (PEMBATAL SEMBOYAN) shall be used to reset the respective rail signal to red aspect. The word “PEMBATAL SEMBOYAN” shall be inscribed below the button. The operation of this button shall initiate a timer (variable from 0-120 seconds). The operation of this timer shall be indicated by a flashing red indication lamps above the button which shall be extinguish when the timer has timed out. While the timer is operating, it shall not be possible to raise the barriers.

11.3.15

During local operation, the activation of train detecting device by train approaching a level crossing shall cause an audible alarm to sound at the gate hut. This alarm may be cancelled by a pushbutton switch which shall be provided closed to an alarm device.

11.4

Barrier Equipment

11.4.1

Each level crossing will required two or more sets of electrically operated barriers according to site conditions. The length of the barrier boom shall be sufficient to span half of the full width of the road, that is, from the edge of the road or kerb up to the central road divider, (for level crossing with 4 barriers), and shall be sufficient to span the full width of the road (for level crossing with 2 barriers). thereby closing the road to all road traffic approaching the crossing when the barrier is in the horizontal (lowered) position. As far as possible the barriers shall be installed so as to be at right angles (90 degrees) with the centre line of the road, when in the horizontal position.

11.4.2

Barrier machines shall be of rugged construction, with the motor gears etc. being completely enclosed in a weatherproof metal case. The machine shall be suitable for mounting on a suitable concrete foundation. Barrier machines shall be of an electromechanical design, whereby an electric motor operates the barrier boom via a system of reduction gears, cams, etc.

11.4.3

The barrier machines shall be designed to accommodate barrier booms from 3.0 to 9.0 meters in length. A simple and effective means of mounting the barrier booms onto the machines shall be provided. Adjustable counterweights shall be incorporated to enable variations in the weight of booms to be accommodated.

11.4.4

The barrier booms shall be of light construction and of sufficient strength and to avoid permanent distortion of fracture during normal operation, taking full consideration of wind loads. The barrier booms shall be fabricated from fibre glass. Metal parts may be used for mounting the barrier booms.

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11.4.5

The diameter of the barrier boom measured at the mounting to the barrier machine shall not be less than 65-75 mm at any point.

11.4.6

When the barrier is in the horizontal position, the top edge of barrier boom shall be between 900mm to 1000mm above the surface of the road when measured at the mid-point of the barrier and the centre line of the barrier boom shall be truly horizontal (within +/- 2 degrees).

11.4.7

When the barrier is in the raised or upright position, the centre line of the barrier boom may be inclined to the vertical by not more than 8 degrees.

11.4.8

The equipment shall be so designed and adjusted that the barriers will still remain in the upright (raised) position in the event of a total electrical supply failure (failure of both mains power supply and battery backup). In the event of mains power supply resumes, the barriers shall still be in the upright position. The Contractor shall demonstrate this feature once the first complete level crossing protection system has been installed.

11.4.9

Three red lights shall be provided on each barrier boom, on the approach side for road traffic. These light units shall have lenses not less than 50mm diameter and be fitted with S.B.C. type lamps of not less than 6 watt nominal rating. One light unit shall be located near the end of the boom and the other two shall be evenly spaced along the length of the boom. These lights are to be unlit when the barriers are upright but should become illuminated when barrier concerned has moved through an angle of 10 degrees or more from the vertical position. Three red coloured reflectors shall also be provided for each barrier boom, one reflector being fitted close to the end of each boom and the other two being evenly spaced. In the event of more than one boom light are faulty, the railway signal shall not be cleared.

11.4.10

The design of the barrier machine and the barrier boom shall be such that, in the event of the boom being struck by a vehicle, any damage will be limited to the boom assembly.

11.4.11

Physical stops shall be provided inside the barrier machine housing to limit the maximum upward and downward movements of the boom. The stops shall be capable of adjustment in the field between the limits of +/- 2 degrees and being positively locked in the selected position. Cushioning devices shall be provided to absorb energy before the above stops finally arrest the motion of the boom.

11.4.12

The distance from the barrier machine to the nearest edge of the road shall not be less than 1.2 meters

11.4.13

Electrical contacts for detecting the various position of a barrier shall be incorporated as required and shall be contained within the barrier machine.

11.4.14

Barrier booms shall be painted with alternate yellow and black bands, 60cm (+/- 1cm) wide commencing with an yellow coloured band at the tip.

11.4.15

The distance from barrier boom to the nearest railway running edge shall not be less than 4 meters and the distance between barrier boom and the highway crossing signal post shall not be less than 3 meters.

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11.4.16

If barrier is detected to be broken, the railway signal shall not be cleared.

11.4.17

Barrier machines shall be of a type already in production and operating on a low d.c. voltage not exceeding 50V.

11.4.18

The time taken for the barriers to operate (lifting or lowering) shall be between 4 to 8 seconds.

11.4.19

A suitable means shall be provided for raising or lowering the barriers manually during failure conditions. The design shall be such that a barrier may be easily raised or lowered and locked in position by an authorised person while at the same time unauthorised personnel shall be prevented from doing so. For example a detachable hand crank inside a special locked box near the level crossing, or a handle built into a special compartment in the barrier machine and accessible after unlocking a cover, may be provided. It shall not be necessary to open the main cover of the barrier machine giving access to the motor, gears or other mechanisms in order to operate the barrier manually.

11.4.20

Cut-out contacts shall be incorporated to disconnect the motors during manual operation of the barrier.

11.4.21

The tender shall include all relevant details of the barrier machines being offered, with photographs being included wherever possible. Principal dimensions, details of foundations required, details of mounting of barrier booms and the maximum permissible weight and length of booms should be given.

11.5

Highway Crossing Signals and Alarms

11.5.1

At each level crossing, two or more sets (depending on site conditions) of Highway Crossing Signals, each set consisting of two units of red flashing light units mounted 900 - 1000mm apart on a post shall be installed with the flashing lights facing on coming traffic. A typical drawing of highway crossing signals and alarms shall be as per Appendix T8/c.

11.5.2

The post for the Highway Crossing Signals shall be designed to enable the Highway alarm to be mounted on its top and a level crossing “X” mark to be mounted between the alarm and Highway Crossing Signal Units.

11.5.3

The distance between the Highway Crossing Signal Post and the nearest edge of the road shall not be less than 1.5 meters apart.

11.5.4

The signal lamp units shall be of type designed for road traffic or level crossing use. The lamps shall be rated for a low voltage (not exceeding 50V).

11.5.5

The lens/diffusers can be of glass or of approved coloured transparent plastics material. The material shall have good toughness and stability properties and must be free from colour fading and change of light transmission under the effects of strong tropical sun.

11.5.6

The inner surface shall be non-smooth and impressed with a diffusing pattern to give the required light distribution. The outer surface shall be smooth.

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11.5.7

The whole light aperture shall present a uniform appearance free from excessively bright or dark spots or sectors, when viewed from any direction along the road.

11.5.8

The two sets of light shall flash alternately at approximately 60 flashes per minute when illuminated for the passage of train.

11.5.9

Signals posts shall be of tubular galvanised steel pipe of suitable diameter fitted with an iron base of at least 12mm thickness and mounted on proper concrete blocks. Inlets wires to the signal lamps and alarms shall go through the pipe post and no wires must hang outside. The signal post shall be painted with one priming coat and two finishing coats of alternate yellow and black bands, 60 cm (+/- 1cm) wide commencing with yellow coloured band at the top of the post.

11.5.10

Highway alarms, one each to be installed on top of each Highway Crossing Signal post, are for the purpose of warning motorists, cyclists and pedestrians at level crossing.

11.5.11

The Highway alarm shall be in the form of a horn speaker emitting the sound of a continuously ringing two tone frequencies of 750 Hz and 700 Hz respectively. These two frequencies shall be periodically interrupted at a frequency of about 2 Hz to give the effect of a two tone bell.

11.5.12

The sound level emitted by the alarm horn shall at least be 75-95 phons measured at a distance of one meter from the alarm horn.

11.6

Flasher – Alarm Unit

11.6.1

At each level crossing, one or more sets of flasher-alarm unit shall be provided depending on the site conditions.

11.6.2

The flasher-alarm unit shall be capable of flashing the highway crossing signal lamps and give forth two tone warning using horn speakers. The principles of operation are as follows :Ratings : Power supply : 24Vdc Pulsation : 10% or less Allowable ambient temperature : - 20° C to +60°C Flasher Block : Intermittent frequency : 50 ± 5/min Control voltage for signal lamp : 24Vdc or less Control current for signal lamp : 4A or less Typical load : four pairs max. (a pair of 24V 20W electrical bulbs alternately lighted)

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Alarm Block :

TECHNICAL SPECIFICATION - SECTION B

1st fundamental frequency 2nd fundamental frequency Modulation frequency Volume Speaker Speaker input

: :

: 750 ± 15 Hz : 700 ± 15 Hz : 130 ± 5 cycles/min : 75 - 90 phons (one metre away) 16ohms ± 15%/1000Hz 10W

11.6.3

For a typical layout of flasher-alarm unit, please refer to Appendix T8/c.

11.7

Railway Signals

11.7.1

All external safety circuits shall be designed for “double” interruption of the current. That is to say, both the wires of each safety circuit must be disconnected by the appropriate relay or switch contacts when the circuit is not required to be energised.

11.7.2

Railway signals are installed along the track and used to control the movement of trains over the level crossing.

11.7.3

In the case of level crossing located outside the area of control of the signalling system at a station, or of any other signal being provided along the tracks, the level crossing shall be provided with two aspects (red/green) signals to control approaching trains from either direction. Such signal (also referred to as Gate Signals) shall be fitted with gate signs (gate symbols in black against a yellow background) conforming to the Railway General Rules and Regulations, and shall be located at not less than 400 metres from the level crossing. The signals shall also comply with respective parts of the specification pertaining to signals.

11.7.4

In the case of a level crossing located within the area of control of the signalling system at a station, or any other signal being provided along the track, the signals provided thereby will take into account the requirements for the level crossing. The Contractor shall provide appropriate controls or slots relays for interfacing to the signalling system to ensure that such signals can safely control trains approaching the crossing. Two relays shall be provided, one for each direction. The relay shall have a minimum of two front and two back contacts.

11.7.5

It shall be ensured that any signal which permits a train to proceed over a level crossing will be able to show a proceed aspect only if the road traffic lights are in red, all barriers provided for the roadway at the crossing has been set in the horizontal position across the roadway with no stalled vehicle trapped at the crossing, proving the barrier is not broken, and furthermore, the Gateman at the crossing has operated the appropriate pushbutton on the LCP to allow the signal to be cleared, or being operated by means of automatic operation

. 11.7.6

All colour light signals shall be of the high design with the centre of the normal aspect (red aspect normally) at the height of 3.66m above rail level. Occasionally this height shall be altered for reasons of improved visibility or

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structure gauge considerations. The green aspect shall always be placed above the red aspect. 11.7.7

The signal posts or masts shall be of tubular construction in mild steel and must be hot dip galvanised after all welding, drilling, cutting, grinding and machining operations have been completed. A suitable means acceptable to JKNS, must be provided for climbing the posts or masts for replacing lamps or making adjustments. For tubular posts of standard height, the usual method adopted by JKNS is to provide number of supporting pipes placed horizontally inside the posts, and welded in position. Short, portable steel bars are inserted through these pipes to serve as steps when it is necessary to climb up the posts.

11.7.8

The signal posts or masts shall be provided with reinforced concrete bases (or footings) which may be either pre-cast or cast at site. The bases shall be dimensioned to ensure long term stability of the signal post installation, and incorporate cable ducts so as to conceal the entry of underground cables into the signal post. When installed, the top of the concrete base shall be not less than 10cm above the ground level.

11.7.9

Bolt hole positions for installation of signal heads and for mounting of the signal posts onto the concrete bases shall conform to the standard arrangements normally adopted by KTMB and JKNS.

11.7.10

Perfect sight of colour light signals must be ensured up to a distance of not less than 300m, with a minimum close sighting distance 30m.

11.7.11

The lamps illuminating the signals shall be of type SL 35 12V/24W (main and auxiliary filament) conforming to the designation and rating according to British Standard 469:1960. Lamps for the colour light signals have double filaments, and the auxiliary filament shall be switched on automatically by a relay when the main filament has failed.

11.7.12

Where applicable, a complete railway signals shall be supplied and installed by the Contractor including screens, signal head, signal lanterns, signal post, operating platforms, concrete footings, post anchorages, as well as all electrical equipment.

11.7.13

The contractor shall follow the recommendations of the Signals Sighting Committee of the Railway regarding the exact position and height of every signal. Distances shown in the drawings included in the tender documents are approximate, and subject to adjustments as recommended by the aforesaid Committee. The distance and signal heights may have to be varied in order to improve visibility, or due to site conditions or operational requirements.

11.8

Road Traffic Light

11.8.1

The actual specifications (height, materials, installation etc.) of the road traffic light shall conform to the specifications and requirements of relevant Local Authorities. A typical layout shall be as per Appendix T8/c.

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11.8.2

The aspect of road traffic light shall be repeated and indicated on the control panel (red and green aspect).

11.8.3

The number of aspects for road traffic light shall be according to the site requirements and shall not be limited to the ordinary 3-aspect type. For road junction/junctions heading towards the crossing, the number of road traffic light shall be sufficient in order to indicate, regulate and stop the road traffic heading towards the crossing when the crossing is closed for the passage of train.

11.8.4

The traffic lights installed at road junctions shall also be designed to operate as the ordinary traffic light to control the road traffic when the operation of pushbutton on control panel for the closure of road is not operated.

11.8.5

The traffic lights shall be activated by pressing a black “AMARAN JALANRAYA” pushbutton. The traffic light shall change from green to yellow and to red. When the aspect of traffic light is proven at red, the highway crossing signals and alarms shall operate. A red “NAIK PENGHALANG” pushbutton shall be used to cancel highway crossing signals and alarms and revert the traffic light to green aspect.

11.8.6

The Contractor shall also construct the road dividers and kerbs as per drawings in Appendix T8/a. The length of the divider shall not be less than 5m, if the site permits, and shall conform to all specifications and requirements of the Local Authorities. Where the traffic light together with highway crossing signals and alarms or a barrier machine is installed on the road divider, all parts of the installed equipment shall be within the width of the divider.

11.8.7

For the crossings which are currently having traffic lights installed by local authority, the Contractor shall undertake interfacing and integration works between the level crossing protection system to be provided under this Contract and the existing traffic lights. The highway alarms and signals shall be installed on the post of the existing road traffic light and also on its own post depending on the location as shown in Appendix T8/a. All materials and equipment for the interfacing and integration works, including all installation works, shall be provided by the Contractor.

11.8.8

For the level crossing located very near to the station, e.g. at Km 38/4 Papar town, the gate signal for train approaching the station shall also become the point indicator. The signal shall also check the status of the point (an also the siding point, if the main/loop point normally set to loop). The aspect of the signal shall be yellow and red.

11.9

Gate Hut

11.9.1

The Contractor shall build a gate hut at all respective crossings with the floor area of 3m X 5m. The Contractor shall also provide 1 nos of toilet attached to gate hut. The design and construction details of the gate hut shall be included in the Tender

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11.9.2

The Contractor shall arrange with SESB for the connection of mains power supply to the gate hut, including power supply application process with SESB. All costs pertaining to connection of mains power supply to the gate hut shall be included in the Tender, including all deposits, installation & materials costs and other charges, etc.

11.9.3

The Contractor shall also arrange with JKR/JBA/local authority for the supply of water to the gate hut as per Clause 11.9.1. All costs pertaining to connection of water supply to the gate hut shall be included in the Tender, including all deposits, installation & materials costs and other charges, etc.

11.9.4

The Contractor shall provide all electrical wiring, power points, lamps, over voltage / over current protection, fuses, circuit breakers, switchboard, twin units of ventilation fan (with automatic changeover unit) etc., in the gate hut.

11.9.5

The location of the gate huts shown in Appendix T8/a shall not be considered as final. The final location of the gate huts shall be proposed by the Contractor depending on the availability of space, site conditions, etc. All gate huts shall be constructed in the JKNS reserve land.

11.10

POWER SUPPLY

11.10.1

The level crossing protection system shall be operated from one or more banks of secondary batteries with voltage not exceeding 50V. The batteries shall be float-charged by one or more automatically regulated constant potential battery charger or chargers. The batteries supplied shall be industrial type lead-acid and must have sufficient capacity to operate for at least 10 (ten) hours during mains power failure, based on the six crossings per hour and duration of five minutes per crossings. The battery charger (or chargers) provided shall be suitable for operation on 240 Volts 50 Hz mains. The charger and back-up batteries shall be housed in the gate hut. Two units of ventilation fans (exhaust fan) of suitable size working alternately by means of automatic changeover unit shall also be installed

11.10.2

Automatic Recovery Circuit Breaker (ARCB) shall be used for the incoming mains power supply to the charger. ARCB shall be able to detect earth leakage, lightning surges, overcurrent / overvoltage, conductor faults, etc. The Tenderer shall include in the Tender the details of ARCB.

11.10.3

The Contractor shall provide a separate circuit breaker for the distribution of power supply to level crossing protection equipment, highway signals and alarms and road traffic lights.

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