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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Compact Modular Cabinets
555-230-128
Issue 3
May 1998
Install and Cable the Cabinets
Page 1-81Install Multi-point Adapters
1
Install Multi-point Adapters
Use multi-point adapters to provide signal fanout of the T-interface. BR851-B or
the 367A perform fanout at the work station. These adapters support more than 1
ISDN terminal per horizontal 4-pair D-inside wire (DIW). To support multiple
horizontal runs, a MDF with multiple common rows performs fanout in the satellite
closet. The 110RA1-12 provides fanout for two horizontal runs and contains the
100 Ohm terminating resistor. Use this for basic multi-point or point-to-point with
terminating resistor in the closet. Other fanout blocks include the 110AB1-025M
and the 110AB1-050M.
BR851-B Adapter (T-Adapter)
The BR851-B supports 2 terminals on 1 multi-point BRI at the work station and is
used to fanout transmission and power. See Figure 1-36
.
Figure 1-36. Wiring Diagram of BR851-B
Figure Notes
1. Wire pairs
2. Pin numbers
3. Modular plug (male)
4. Female
5. T-Type adapter (BR851-B)
44
r910017 RPY 012098
4
RR
R
88
8
44
4
TT
T
77
7
33
3
RR
R
66
6
11
1
TT
T
55
5
11
1
RR
R
44
4
33
3
TT
T
33
3
22
2
RR
R
22
2
22
2
TT
T
11
1
1
11
2
22
3
4
4
5