Nortel Networks 400 4.0, BCM200 manual DTM RJ-48C wiring array

142Chapter 9 Connecting the cables

Connect the MBMs to service providers

To connect DTM, CTM, CTM8, BRIM S/T, or 4x16 MBMs

1On the front of the MBM, locate the RJ-48C jack (DTM), RJ-45 jack (BRIM), or the RJ-11 jacks (CTM and 4x16).

2Wire one end of the cable to the demarcation blocks of the building.

Figure 75 shows the wiring pin-outs for a DTM to connect to a service provider.

Figure 75 DTM RJ-48C wiring array

DTM connector

1 2 3 4 5 6 7 8

	To network	To plug
	Receive from	1- Rring
	network	2	- Rtip
RJ-48C jack
		3	- Rshield
	Transmit to network	4-Tring
		5-Ttip
		6-Tshield

Warning: If you are using a service provider channel service unit (CSU), you must disable the BCM system internal CSU.

Figure 76 shows the wiring pin-out for a CTM4, a CTM8, or the CTM jacks on a 4x16 MBM to connect to the service provider.

All the MBMs have an auxiliary jack (the CTM8 has two). Do not attempt to plug digital equipment into this jack.

Figure 76 CTM RJ-11 wiring array

CTM connector

Auxiliary jack

RJ-11 jacks

Pin #/connection

3- Ring

4 - Tip

6 5 4 3 2 1

The CTM8 has ten RJ-11 jacks, including two auxiliary jacks.

The 4x16 and CTM4 MBMs have four RJ-11 jacks.

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