Справочник Пользователя для AT&T System 85

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

The maximum signaling distance from the port board to the work location jack based on DIW 24

AWG cable is:

d

Terminating resistor in work location—1900 feet

d

Terminating resistor in satellite closet—1600 feet

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.

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.

The 7506 display terminal cannot be used as an emergency station during power failure transfer

conditions.

The 7506 display terminal is not FCC registered.

This voice terminal is compatible with the inductively coupled hearing aids prescribed by the FCC.