Computer Networks Lab

COMPUTER NETWORKS LAB

TOPICS

DEVICES & TOOLS

DEVICES & TOOLS  Router It

is a device that forwards data packets along networks

DEVICES & TOOLS  Switch A network

switch is a small hardware device that joins multiple computers together within one local area network (LAN)

DEVICES & TOOLS  Face

plate

Before

you can begin the connection process, you first must locate your network wall jack

Design & Tools  Crimping

tool

Tools  Cleaver Used

to remove insulation on wire

Tools  Cable

Tester

Used

to verify connections in connectors

CABLES

CABLES Categor Type Spectral Length LAN Applications y B/W

Notes

Cat3

UTP

16 MHz

100m

10Base-T, 4Mbps Now mainly for telephone cables

Cat4

UTP

20 MHz

100m

Cat5

UTP

100MHz

100m

Cat5e

UTP

100MHz

100m

1000Base-T

Common for current LANs

Cat6

UTP

250MHz

100m

 

Emerging

Cat7

ScTP 600MHz

100m

 

 

16Mbps

Rarely seen

100Base-Tx,ATM, Common for current LANs CDDI

Ethernet Cable Summary

ETHERNET CABLE SUMMARY Specification

Cable Type

Maximum length

10BaseT

Unshielded Twisted  Pair

100 meters

10Base2

Thin Coaxial

185 meters

10Base5

Thick Coaxial

500 meters

10BaseF

Fiber Optic

2000 meters

100BaseT

Unshielded Twisted  Pair

100 meters

100BaseTX

Unshielded Twisted  Pair

220 meters

WIRING PATTERN (UTP)

CONNECTIONS

CONNECTOR  RJ

45

CONNECTIONS  STRAIGHT

THROUGH

CONNECTIONS