1-overview Of Access Network

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Overview of Access Network V0501

ZTE university

ZTE University

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Course contents •Introduction of access network

• ZTE AN product evolvement

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The transmission part of the telecommunications network consists of trunk network and access network.

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The transport network serves as a carrier of the bearer networks - the PSTN, PLMN and ISDN.

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Definition of Access Network Access network is the implementation system formed by a series of transmission entities and providing the required bearing capability for information transmission service between the service node interface (SNI) and the relative user network interface (UNI).

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Interfaces to the access network

Interfaces to the access network ZTE University

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Interfaces to the access network UNI Customer terminal

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SNI Service AN

node

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Function of Access Network

• It completes the functions of cross connection multiplexing and transmission.

• It transmits the subscriber signaling transparently without any explanation.

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Network for the AN FTTC/FTTR

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Network for the AN Point-to-Point networking: OLTB

ONU

Z¨ V M5

LE

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Network for the AN Chain networking: Z / V5 OLTB

ONU

ONU

LE

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Network for the AN Ring networking: ONU Z/V5 ONU

OLTB L E

Ring network

ONU

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Network for the AN

Ring structure with protection switching ZTE University

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ZTE AN product evolvement •ZXA10-A unit conception –OLTA –ONUA –Built-in optical transmission system •ZXA10-B unit conception ——Traditional main market product of –OLTB –ONUB –Built-in optical transmission system

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ZTE AN product evolvement • ZXA10-C node conception ——MSAN system – OLTC T300/T600 – ONUC U300 – MSTP S300/S200

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•Now use IP+TDM switch mode –Most suitable technology for different services; can support different services; simple; reliable; compatible with existing network. –Completely guarantee the service quality, perfectly realize the different service. –The bandwidth can be adjusted according to the different requirement of different services. –Coincident with the network development. •Evolve to NGN –Smoothly evolve to NGN, which center around IP. –Realize the comprehensive amalgamation between PSTN service and data service. ZTE University

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S300&S200 system introduction ZXA10 S300&S200 networking application POTS PSTN/ISDN ISDN

155M/622M/2.5G

DDN

DDN

Core network IP

O L T

ZXA10 S300

ZXA10 O N S200 U

ADSL

FE/GE FE/GE

Ethernet

ATM155/622 ATM

FE/GE/ATM DSLAM

FE/GE

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VDSL

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S300&S200 system introduction ZXA10 S300&S200 networking application PSTN

IP/ATM

S200

622/155M MSTP Core module

S200

622M/2.5G MSTP

S300

S200 S200

IST S200 IST IST

IST

S200

622M MSTP

S200

S200

S200

IST

IST IST

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IST IST

IST

IST

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S300&S200 system introduction ATM/IP

PSTN/DDN

OLT S 300

U300 S 200

Enter prise 1 Videocon ference

NT1 CENTREX

Community subscriber PSTN/VOIP

Router Switch

Enterpri se 2 Videocon ference

CENTREX

ATUR

Base band Modem Data leased line

ATUR

High speed High speed Internet Internet High speed Data leased Internet line The information contained in the file is solely property of ZTE corporation. Any kind of disclosing without permission is prohibited.

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VOD

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