Nortel Networks BCM200/400 - Manual (Page 355)

Appendix F DTM wiring chart 355
BCM200/400 4.0 Installation and Maintenance Guide
Appendix F
DTM wiring chart
The digital telephone line is connected to the digital trunk module (DTM) through the RJ-48C jack
on the front of the media bay module (MBM) (see
Figure 195 ).
Figure 195 DTM RJ-48C port
Table 93 lists the wiring details for the RJ-48C port.
Table 93 DTM RJ-48C port wiring
Pin Signal
1 Receive Ring
2 Receive Tip
3 Receive Shield
4 Transmit Ring
5 Transmit Tip
6 Transmit Shield
7 No connection
8 No connection
1 2 3 4 5 6 7 8
RJ-48C jack
RJ-48C pin-out
DTM
Bantam jack