Type of: Radios
GENERAL
The Interphone-radio Control System (ICS) (Figure 1-10-2), amplifies interphone and received radio signals and provides control for: ICS isolation between crewmember and pilots; crew transmissions on UHF, HF, VHF/AM, VHF/FM, sonar and relay of sonobuoy information; and individual reception of radio, sonar and sonobuoy signals.
The ICS system is operative when the No.1 RADIO MASTER switch is in the ON position. The system operates on direct current from the essential bus and is protected by a circuit-breaker marked “RADIO BUS NO.1”, located on the overhead circuitbreaker panel, and by a circuit-breaker marked “ICS”, located on the radio circuit-breaker panel (Figures 1-5-5 and 1-5-6).
Crew ICS
Five crew ICS stations are provided in the aircraft; one each for the pilot, co-pilot, TACCO, SENSO/sonar operator, and hoist operator. Each station is equipped with head-set/microphone connections, microphone switches and various ICS control panels.
Ref: C-12-124-A00/MB-000, Aircraft Operating Instructions CH124 Sea King Helicopter, Ch 3 – 2003-03-28, page 1-10-1
The AIC-14 ICS consists of: