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ISDN 7506 Display Terminal
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.
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