Nortel Networks BCM50 manual Appendix E, DTM wiring chart, DTM line numbering

Appendix E DTM wiring chart 213

Appendix E

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 83).

Figure 83 DTM RJ-48C port

DTM

Bantam jack RJ-48C jack

1 2 3 4 5 6 7 8

RJ-48C pin out

Table 39 and Table 40 list the wiring details for the RJ-48C port.

Table 39 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

Table 40 DTM line numbering

	Default line numbers on	Default line numbers on
Line type	Expansion port 1	Expansion port 2
T1	065 – 088	095 – 118
PRI	065 – 087	095 – 117
E1	065 – 094	095 – 124

BCM50 Installation and Maintenance Guide