VEHICULAR ANTENNA: Radiates/receives RF signals for RT. Mounted on vehicle,
(AS-3900 or AS-3916, part of installation kit).
MOUNTING ADAPTER: Provides interface and support to RT and power amplifier
(in LR radios), Mounts in mounting base.
HANDSET: Used for voice communication. Connects to amplifier adapter con-
nector AUD/DATA A J3 (when RT is mounted in an amplifier adapter) or to RT
connector AUD/FILL (when RT is mounted in a power supply adapter). When us-
ing a headset, connect to amplifier adapter connector AUD/DATA A J3.
CONTROL-MONITOR (CM) (if used): Connects to mounting adapter connector
J9. Connects to power supply adapter connector J3. Used to remotely control
RT (one CM can control up to three RTs).
5 . CVC HELMET: Used for voice communication. Connects to C-2298/VRC (control
box) connectors J802 and J803 (the control box is connected to AM-1780/VRC
connector J507, and the AM-1780/VRC is connected to mounting base connec-
tors J3 and J4).
LOUDSPEAKER: Loudspeaker-Control Unit, LS-671/U (loudspeaker) monitors
RT audio/voice communication. Connects to mounting base connector J3 (for
RT in position A) or to mounting base connector J4 (for RT in position B). Loud-
speaker LS-454/U may also be used. Connects to mounting adapter connector
MOUNTING BASE: Supports mounting adapter. Bolted to vehicle.
RECEIVER-TRANSMITTER (RT): Slides into mounting adapter or power supply
adapter; mates with jack at rear of adapter. RT in position A is always the bottom
RT. RT in position B is the upper RT. If you have a SR/LR, the RT in position A
is the LR RT and the RT in position B is the SR RT.
POWER SUPPLY ADAPTER: Provides interface and support to RT. Mounts in
single radio mount.
10. SINGLE RADIO MOUNT: Supports/provides power to power supply adapter.