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8434 and 8434DX Voice Terminal
8434 and 8434DX Voice Terminal
The basic 8434 (8434D01A) and the enhanced 8434DX (8434D02A) voice terminals are multi-
appearance digital voice terminals which offer 34 call appearance/feature buttons, each with a
red light and a green status light, four standard fixed feature buttons (CONFERENCE, DROP,
HOLD, and TRANSFER), a MUTE button, a SPEAKER button which accesses either a 2-way
speakerphone or a 1-way listen-only speaker, a TEST button, a SHIFT button, a red Message
light, personalized ringing, a built-in speakerphone with a reset option, and a built-in 2-line by
40-character VFD display. The 8434 and 8434DX also have five softkeys and four display control
buttons which allow the user to access 15 features. These softkey features can be used
in addi-
tion to
the features on the call appearance/feature buttons.
The 8434 and 8434DX voice terminals can be used in both a 4-wire and a 2-wire environment.
For more information, see ‘‘Wiring Information.’’
Important: In order to use the display on the 8434 or 8434DX voice terminal and to use an 801A
expansion module connected to the 8434DX, you must connect an auxiliary power supply to the
voice terminal. An MSP-1 Power Supply is recommended.
The 801A Expansion Module can be connected to the 8434DX voice terminal to provide 24 addi-
tional call appearance/feature buttons. The 801A can be used ONLY with the 8434DX voice ter-
minal and the terminal must be connected to a DEFINITY G3V3.3 (or later) switch. For more
information about this module, see the section on the 801A Expansion Module behind the tab
labeled Adjuncts.
Note: The basic 8434 (8434D01A) voice terminal is no longer manufactured.
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