Table 29 T1/E1 Csu/Dsu Cable Pinouts For Crossover Connection; Table 30 T1/E1 Csu/Dsu Cable Pinouts For Straight-Through Connection - Nortel Contivity 5000 Installing

Table 29 provides the T1/E1 CSU/DSU cable pinouts for a crossover connection.

Table 29 T1/E1 CSU/DSU cable pinouts for crossover connection

Standard-wired
end 8-pin male Signal name
1 RXDA<-TXDA
2 RXDB<-TXDB
3 not used
4 TXDB->RXDB
5 TXDA->RXDA
6 not used
7 not used
8 not used
The cable will operate properly if pins 3, 6, 7, and 8 are not connected.
Caution: For crossover connections, do not use Ethernet cable. The
T1/E1 CSU/DSU will not work to specifications. Data may be corrupted.
Table 30 provides the T1/E1 CSU/DSU cable pinouts for a straight-through
connection.

Table 30 T1/E1 CSU/DSU cable pinouts for straight-through connection

Nortel Networks termination
Signal
Receive A (RXDA)
Receive B (RXDB)
not used
Transmit B (TXDB)
Transmit A (TXDA)
not used
not used
not used
Appendix A Technical specifications 109
Pair number
and conductor
wht/org pair 2A
orange pair 2B
wht/grn pair 3A
blue pair 1B
wht/blu pair 1A
green pair 3B
wht/brn pair 4A
brown pair 4B
Remote termination
Pin # to Pin # Signal
1 1 Receive A (RXDA)
2 2 Receive B (RXDB)
3 3 not used
4 4 Transmit B (TXDB)
5 5 Transmit A (TXDA)
6 6 not used
7 7 not used
8 8 not used
Special-wired
end 8-pin male
5
4
3
2
1
6
7
8
Installing the Contivity 5000