Bri Power Supplies; Figure 11-1. Special Isdn Wiring For Satellite Closet - Avaya 6424D+M User Manual

11-2
BRI: DEFINITY GENERIC 2 WITH UNIVERSAL MODULES
BRI uses pairs 1 and 3 of the DIW cable as shown in figure 11-1, Special ISDN Wiring for Satellite
Closet.

Figure 11-1. Special ISDN Wiring for Satellite Closet

BRI POWER SUPPLIES

BRI terminal power can be installed in either the satellite closet or the workstation. The power supplies
available for ISDN BRI terminals are:
353A — A 12-watt power supply with a single -40 VDC output; a standalone supply that can be
used only with ISDN BRI sets.
945-1 bulk power supply — Provides 13 ports with 18 watts at -40 VDC; a closet unit with an
overall capacity of 144 watts available for terminal power. Terminal load should be distributed as
evenly as possible across the thirteen ports.
When bridging (adding more than one terminal to a port) or when moving terminals from port to
port, ensure that you do not exceed the 18-watt power rating. For specific information on bridging,
refer to the ISDN Terminal Installation and Tests (555-021-101) manual.
This power supply can be used with ISDN BRI sets only. Do not use with other voice terminals
compatible with Generic 2 with universal modules.
NOTE: If you are powering a large number of terminals with the 945-1, ensure that they are all
close enough to the power supply to be accommodated by a single unit; that is, ensure that all
terminals fall within the range limits of the power supply. (See table 11-1, Power Supply Distance
Limits, for range and power data.)
KS22911 — A 10-watt, -48 VDC workstation power supply; if the terminal has a speakerphone or
headset, the power supply range is 150 ft.