Nortel 1100 安装指导
198
Appendix A Technical specifications
NN46110-317 02.01
The cable operates properly if you do not connect pins 3, 6, 7, and 8.
provides the T1/E1 CSU/DSU cable pinouts for a straight-through
connection.
Quad T1/E1 CSU/DSU WAN interface card
The quad T1/E1 CSU/DSU WAN interface card has four connectors that provide
the signals needed to interface to T1 or E1 equipment.
the signals needed to interface to T1 or E1 equipment.
shows the quad
T1/E1 CSU/DSU WAN interface card.
Figure 93
Quad T1/E1 CSU/DSU WAN interface card
Caution: For crossover connections, do not use Ethernet cable. If you
use Ethernet cable, theT1/E1 CSU/DSU does not work to specifications.
This condition can corrupt data.
use Ethernet cable, theT1/E1 CSU/DSU does not work to specifications.
This condition can corrupt data.
Table 28
T1/E1 CSU/DSU cable pinouts for straight-through connection
Nortel termination
Remote termination
Signal
Pin # to Pin #
Signal
Receive A (RXDA)
1
1
Receive A (RXDA)
Receive B (RXDB)
2
2
Receive B (RXDB)
not used
3
3
not used
Transmit B (TXDB)
4
4
Transmit B (TXDB)
Transmit A (TXDA)
5
5
Transmit A (TXDA)
not used
6
6
not used
not used
7
7
not used
not used
8
8
not used
CS160012A