AT&T Callmaster Series Reference Manual page 102

VOICE TERMINAL FEATURES
Multi-Appearance Digital Voice Terminal Features
AC Powered
DC Powered
(supplied by PBX)
Optional Enhancements
Headset Adapter
External Speakerphone
Digital Terminal
Data Module
Data Module Base
Call Coverage Module
Function Key Module
Digital Display Module
7400B+ Data Module
Note 6. In order to use the display on the 8434 voice terminal, you
must connect an auxiliary power supply to the voice terminal.
An MSP-1 Power Supply is recommended.
3-12
TABLE 3-C (continued).
PHYSICAL
FEATURES 8403 8410
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VOICE TERMINALS
8434 602 CM CM II & III
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(Note 6)
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