Brim Wiring Chart; Appendix F - Nortel BCM50 Installation And Maintenance Manual

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
BRIM.
Figure 84, Table
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
Table 41 and Table 42 on page 216
Table 41 BRIM RJ-45 port wiring
Pin
1
2
3
4
5
6
7
8
Figure
41, and Table 42 on page 216
BRIM
RJ-45 jacks
list the wiring details for the RJ-45 ports.
Signal
No connection
No connection
+ Receive (+Rx)
+ Transmit (+Tx)
- Transmit (-Tx)
- Receive (-Rx)
No connection
No connection
Appendix F BRIM wiring chart
84). You can connect up to four BRI ISDN lines to the
apply to S-Loop and T-Loop connections. S-Loop
Signal on system side
No connection
No connection
+Tx
+Rx
-Rx
-Tx
No connection
No connection
BCM50 Installation and Maintenance Guide
215
1 2 3 4 5 6 7 8
RJ-45 pin out