Nortel Networks BCM50 manual Appendix F Brim wiring chart, Brim RJ-45 port wiring

Appendix F BRIM wiring chart 215

Appendix F

BRIM wiring chart

The digital BRI ISDN lines are connected to the BRIM through the RJ-45 jacks on the front of the media bay module (MBM) (see Figure 84). You can connect up to four BRI ISDN lines to the BRIM.

Figure 84, Table 41, and Table 42 on page 216 apply to S-Loop and T-Loop connections. S-Loop are used to connect S-Loop devices such as video phones, terminal adapters, and Grp 3 Fax machines. The T-Loops are used to connect to the CO/PSTN.

Warning: For a U-loop connection, the BRIM must be connected only to an NT1 provided by the service provider. The NT1 must provide a Telecommunication Network Voltage (TNV) to Safety Extra Low Voltage (SELV) barrier.

Figure 84 BRIM RJ-45 ports

BRIM

1 2 3 4 5 6 7 8

RJ-45 pin out

RJ-45 jacks

Table 41 and Table 42 on page 216 list the wiring details for the RJ-45 ports.

Table 41 BRIM RJ-45 port wiring

Pin	Signal	Signal on system side
1	No connection	No connection
2	No connection	No connection
3	+ Receive (+Rx)	+Tx
4	+ Transmit (+Tx)	+Rx
5	- Transmit (-Tx)	-Rx
6	- Receive (-Rx)	-Tx
7	No connection	No connection
8	No connection	No connection

BCM50 Installation and Maintenance Guide