Nortel BCM50 2.0, Руководство по установке

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Appendix D DTM wiring chart 69
Telephony Device Installation Guide
Appendix D
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 16 ).
Figure 16 DTM RJ-48C port
Table 10 and Table 11 list the wiring details for the RJ-48C port.
Table 10 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 11 DTM line numbering
Line type
Default line numbers on
Expansion port 1
Default line numbers on
Expansion port 2
T1 065 – 088 095 – 118
T1-PRI 065 – 087 095 – 117
E1 065 – 094 095 – 124
1 2 3 4 5 6 7 8
RJ-48C jack
RJ-48C pin-out
DTM
Bantam jack