Chapter 10 Wiring the modules 133
Installation and Maintenance Guide

Connecting media bay modules to Service Providers

To connect DTM, CTM, CTM8, 4X16, or BRI media bay modules to the network, follow these
steps:
1On the front of the module, locate the RJ48C socket (DTM), RJ45 sockets (BRI), or the
RJ11 sockets (CTM and 4X16 m odules).
2Wire one end of the cab le to the te lco demarcati on blocks of the buildi ng.
•Figure 53 shows the wiring pinouts for a DTM to connect to a service provider.
Figu re 53 DTM RJ48C wiring array
•Figure 54 shows the wiring pinout for a CTM, a CTM8, or the CTM jacks on a 4X16
module, to c onnect to the service provider.
All the module s have an auxil iary jack (th e CTM8 has two). Do not attempt to plug digit al
equipment into this jack.
Figu re 54 CTM RJ11 wiring array
Wa rning: If yo u are usi ng a se rvice p rovider b us servic e unit (CSU), you must di sable the
Business C ommunicat ions Manager syst em inte rnal CSU using Business Communications
Manager Unified Manager. For more inf ormation, refer to the Business Communications
Manager Programming Operations Guide .
1 2 3 4 5 6 7 8
DTM connector To network To plug
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 Pin #/connec tion
3- Ring
4 - Tip
The CTM 8 has eight RJ11 jacks, including two
auxiliary jacks.
The 4X16 media bay module has four RJ11 jacks.