CONTROL, RADIO SET C-7088/ARC-131

TM 11-5820-670-12

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LOCATION AND DESCRIPTION OF MAJOR COMPONENTS. (CONT)

The control unit is a separate unit containing all the operator's controls and indicators on the front

panel. It is mounted to the aircraft equipment rack by four turnlock fasteners. A multiple-pin con-

nector, at the rear of the control unit, permits all electrical connections made between the control unit

and other components of the radio set and aircraft interphone system.

MOUNTING MT-3664/ARC-131 AND CONNECTOR PLATE SM-B-620336

The mounting is used to secure the receiver-transmitter to the aircraft airframe structure. The

mounting shelf, where the receiver-transmitter sits, is supported by six shock isolators. Two guide

pins at the rear of the mounting facilitate proper mating of the receiver-transmitter with the connector

plate.

All electrical connections are made through the three coaxial connectors and the multiple-pin

connector of the connector plate. A contact guard, secured to the mounting plate of the connector

plate, provides protection to the wired contacts when receiver-transmitter is installed. The connector

plate is initially an aircraft installed item as part of the wiring harness.

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