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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 1-79Install the BRI Terminating Resistor
1
Closet Mounted (110RA1-12)
The 110RA1-12 terminating resistor block consists of twelve 2-pair circuits and
provides the 100 Ohm termination used for ISDN-BRI circuits.
Figure 1-34
shows the wiring of the 110RA1-12. Three rows of 110D-4 connector
blocks contain resistors and capacitors. The bottom row is designated as the
input row and the top and middle rows are designated as the output rows. The
circuit assembly is mounted on a standard 110A-100 pair mounting base.
Figure 1-34. Terminating Resistor Block (110RA1-12)
Figure Notes
1. Circuit 1
2. Circuit 12
3. Output row “A”
4. Output row “B”
5. Input row “C”
6. Only first circuit shown to all 12
circuits (2APR) per block
7. 110D-4 connector block
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r910014 RPY 012098
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