Справочник Пользователя для AT&T System 85
7500B Data Module
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Distance Limitations
The maximum signaling distance from the port board to the work location jack based on DIW 24
AWG cable is:
AWG cable is:
d
Terminating resistor in work location—1,900 feet
d
Terminating resistor in satellite closet—1,600 feet.
Power Requirements
The stand-alone 7500B Data Module operates with power from a modular AC to DC adapter that
is normally plugged into a wall outlet. When the 7500B is used in a multiple mount arrangement,
a built-in power supply is provided in the 77A Data Mounting.
is normally plugged into a wall outlet. When the 7500B is used in a multiple mount arrangement,
a built-in power supply is provided in the 77A Data Mounting.
Terminating Resistor
A 440A4 Terminating Resistor adapter is required with the 7500B. The 440A4 can be located at
the work location or in the satellite closet.
the work location or in the satellite closet.
FCC Registration
The 7500B data module is not FCC registered.
Additional Documents
The following documents contain additional information relating to the 7500B Data Module:
d
7500B Data Module User’s Manual, 555-021-717
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