Instruction manual

HARDWARE DESCRIPTION
Voice Terminal Adjunct Power Supplies
Table 4-F provides a summary of the supplemental power supplies and their applications.
Table 4-F. Supplemental Voice Terminal Power Supplies
POWER SUPPLY
OUTPUT
2012D Transformer
18 V ac
KS-22911, L1 Power
-48 V dc
Supply
85B1 Power Unit
18 V ac
FOR USE WITH
ADUs (except Z3A5).
MET sets that require local power
500A Headset Adapter.
S101A Speakerphone.
Selector Console.
Z3A5 ADU.
7300 H-Series sets that require local
power.
502B Headset Adapter (see note).
S102A Speakerphone (see note).
4A Speakerphone System
Note:
This power supply is required whenever an adjunct (Headset Adapter or
Speakerphone) is connected to a 22- or 34-button voice terminal.
Attendant Consoles
System 25 can have one of the following attendant console configurations:
● One or two Direct Trunk Attendant Consoles (DTACs)—34-Button Voice Terminals
(PEC 3162-417, 3162-BIS, or 3167-34B) administered for attendant service. Either or
both positions can have a Direct Extension Selector Console associated with it.
● One or two Switched Loop Attendant Consoles (SLACs)—34-Button BIS/Display
Voice Terminals (PEC 3162-DIS or 3167-DSB) administered for attendant service.
Either or both positions can have a Direct Extension Selector Console associated
with it.
Complete information on the Attendant Console features can be found in Section 2.
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