LOCATION AND DESCRIPTION OF MAJOR COMPONENTS. (CONT)
CONTROL, RADIO SET C-7088/ARC-131
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
pins at the rear of the mounting facilitate proper mating of the receiver-transmitter with the connector
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.