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Chapter 4 Install, remove or replace the Media Bay Modules 119
Installation and Maintenance Guide
Connect the Media Bay Modules to Service Providers
To connect DTM, CTM, CTM8, 4X16 CTM, or BRIM S/T media bay modules to the network,
follow these steps:
1 On the front of the module, locate the RJ48C jack (DTM), RJ45 jack (BRI), or the
RJ11 jacks (CTM and 4X16 modules).
2 Wire one end of the cable to the telco demarcation blocks of the building.
• Figure 68 shows the wiring pin outs for a DTM to connect to a service provider.
Figure 68 DTM RJ48C wiring array
• Figure 69 shows the wiring pin-out 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 69 CTM RJ11 wiring array
Warning: If you are using a service provider channel 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 3.0, 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 jacks
Auxiliary jack
Pin #/connection
3- Ring
4 - Tip
The CTM 8 has ten RJ11 jacks, including two
auxiliary jacks.
The 4X16 and CTM media bay modules have
four RJ11 jacks.