Nortel Networks BCM200, 400 4.0 manual Appendix B Brim wiring chart, Brim RJ-45 port wiring

Appendix B BRIM wiring chart 337

Appendix B

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 190). You can connect up to four BRI ISDN lines to the BRIM.

Figure 190, and Table 86 apply to S-Loop and T-Loop connections. S-Loop connections are used to connect S-Loop devices, such as video phones, terminal adapters, and group 3 fax machines. The T-Loop connections 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 190 BRIM RJ-45 ports

BRIM

1 2 3 4 5 6 7 8

RJ-45 pin-out

RJ-45 jacks

Table 86 lists the wiring details for the RJ-45 ports.

Table 86 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

BCM200/400 4.0 Installation and Maintenance Guide