Chapter7ExternalCableInstallation
ļæ½Straight-throughnetworkcableRJ45
ļæ½CrossovernetworkcableRJ45J
Straight-Through
NetworkCable
RJ45
Thecableconnectionrelationshipisintheone-to-onecorrespon-
denceatbothends.Thespeciīæcconnectionrelationshipisshown
inTable11.
TABLE11STRAIGHT-THROUGHNETWORKCABLERJ45CONNECTIONS
EndACableChromatogramEndB
1
Whiteandorange
1
2Orange2
3
Whiteandgreen
3
6Green6
4
Blue
4
5
Whiteandblue
5
7
Whiteandbrown
7
8
Brown
8
Crossover
NetworkCable
RJ45J
Cableconnectionrelationshipiscrosscorrespondencebetween
twotwistedpairsatbothends.Thespeciīæcconnectionrelation-
shipisshowninT able12.
TABLE12CROSSOVERNETWORKCABLERJ45JCONNECTIONS
EndACableChromatogramEndB
1
Whiteandorange
3
2Orange6
3
Whiteandgreen
1
6Green2
4
Blue
4
5
Whiteandblue
5
7
Whiteandbrown
7
8
Brown
8
FiberInstallation
Opticalīæbersareusedtoconnectopticalinterfaces.Therearetwo
typesofīæbers:singlemodeandmulti-mode.Theycanbeused
asrequired.
ConīædentialandProprietaryInformationofZTECORPORATION89