Nortel Networks BCM1000 Benutzerhandbuch

Chapter 10 Wiring the modules 135

Installation and Maintenance Guide

To connect DTM, CTM, CTM8, 4X16, or BRI media bay modules to the network, follow these 
steps:

On the front of the module, locate the RJ48C socket (DTM), RJ45 sockets (BRI), or the 
RJ11 sockets (CTM and 4X16 modules). 

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

•

 shows the wiring pinouts for a DTM to connect to a service provider.

Figure 53   DTM RJ48C wiring array

•

 shows the wiring pinout for a CTM, a CTM8, or the CTM jacks on a 4X16 

module, to connect to the service provider. 

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

Figure 54   CTM RJ11 wiring array

If you are using a service provider bus service unit (CSU), you must disable the 

Business Communications Manager system internal CSU using Business Communications 
Manager Unified Manager. For more information, refer to the Business Communications 
Manager Programming Operations Guide.

1 2 3 4 5 6 7 8

DTM connector

Receive from 
network

 

1- Rring

 

2 - Rtip

 

3 - Rshield 

Transmit to network

 

4-Tring

 

5-Ttip

 

6-Tshield

RJ48C jack

6 5 4 3 2 1

CTM 
connector

RJ11 sockets

Auxiliary jack

3- Ring

4 - Tip

The CTM 8 has eight RJ11 jacks, including two 
auxiliary jacks.

The 4X16 media bay module has four RJ11 jacks.