Table 3-6. Console Control Panel Controls, Indicators and Connectors (fig. 3-6)

TM 11-5821-285-12-1

Controls/indicators

Function

POWER IN connector.

Connection point for primary power from helicopter dc power

supply.

POWER switch.

Applies or removes primary power throughout the console.

POWER indicator.

Lights when primary power is applied throughout console.

FM-1, FM-2 and FM-3 SEC. indicators.

Lights when associated FM radio is in ciphered mode of

operation.

Lights with or without KY-28 equipment installed.

INT. circuit breaker.

Single-ganged 5-ampere circuit breaker which provides control

and overload protection for the console from the ICS boxes.

SEC. circuit breaker.

Single-ganged 10-ampere circuit breaker which provides control

and overload protection for console from security equipment.

FM-1 circuit breaker.

Single-ganged 15-ampere circuit breaker which provides console

with control and overload protection from FM-1 radio.

FM-2 circuit breaker.

Single-ganged 15-ampere circuit breaker which provides console

with control and overload protection from FM-2 radio.

FM-3 circuit breaker.

Single-ganged 15-ampere circuit breaker which provides console

with control and overload protection from FM-3 radio, or ARC-

164 radio, or ARC-51BX radio, as configured.

ANTENNAS coaxial connectors.

Connection point for respective antenna cables:

FM-1 ................ To copilot's side FM antenna.

FM-2 ................ To pilot's side FM antenna.

UHFIFM-3 ....... To center rear FM antenna or UHF antenna.

FM-I connector.

Connection point for antenna control cable to right-hand FM

antenna.

FM-2 connector.

Connection point for antenna control cable to pilot's side FM

antenna.

FM-3 connector.

Connection point for antenna control cable to center rear FM

antenna.

Plug Connector U-94A/U (six, press-to-talk, cord

Connection point for headset-microphone. Press-to-talk

switch mounted, headset-microphone jacks).

enables operator to transmit on selected radio or intercom

system.

3-9