TM 11-5820-890-10-3
LOUDSPEAKER
Loudspeaker-Control Unit, LS-671 /U (loudspeaker). Used for monitoring voice communications in vehicular installations.
Refer to pages 1-8 thru 1-10 for connection to vehicular radios.
Loudspeaker
Power switch. Used to turn loudspeaker on and off. May also be used to turn power on and off to mounting adapter if
mounting adapter CB1 is set to ON.
Power indicator lamp. Lights when power switch is set to ON.
Volume control. Adjusts volume level of loudspeaker or handset (if connected). To adjust volume level for handset, turn
clockwise to increase volume; turn counterclockwise to decrease volume. To adjust volume level for loudspeaker, pull and
turn clockwise to increase volume; pull and turn counterclockwise to decrease volume.
Handset connector J2. Used to connect handset.
J1. Connects to mounting base or single radio mount connector J3 or J4 using speaker cable.
Loudspeaker LS-454/U (loudspeaker). Used for monitoring voice communications in vehicular installations. Refer to
pages 1-8 thru 1-10 for connection to vehicular radios.
Loudspeaker
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