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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
ISDN Voice Terminals
17-12The ISDN 7506 Voice Terminal
17
Color Options
The base of the 7506 is always black. The top of the 7506 is available in misty
cream or black.
Distance Limitations
The maximum signaling distance from the port board to the work location jack
based on DIW 24 AWG cable is:
■ Terminating resistor in work location — 1900 feet
■ Terminating resistor in satellite closet — 1600 feet
Power Requirements
The 7506 display terminal requires an auxiliary power supply. The power supply
can be provided at a central location or may be collocated with the 7506 display
terminal. If the auxiliary power supply fails or loses its power, the 7506 display
terminal will provide basic voice service with the phantom power provided by the
switch.
Terminating Resistor
A 440A4 Terminating Resistor adapter is required with the 7506 display terminal.
The 440A4 can be located at the work location or in the satellite closet.
Power Failure Operation
The 7506 display terminal cannot be used as an emergency station during power
failure transfer conditions.
FCC Registration
The 7506 display terminal is not FCC registered.
Hearing Aid Compatible
This voice terminal is compatible with the inductively coupled hearing aids
prescribed by the FCC.