
290A3702
BLK
WHT
BLK
WHT
AUDIO
COMMON
REMOTE
TO OTHER
INTERCOMS
1
3
7
5
6
2
4
SEE POWER
CONNECTIONS
BLK
WHT
GRN
*
*
BLK
WHT
GRN
*
1K
1
WATT
Operating Principle:
• When one talks, all remotes will hear.
• To talk into remote, press talk switch and talk
into speaker/microphone. Release talk switch
to listen. (The headset speaker selector switch
must be in “speaker” position to hear received
audio signal on speaker.)
• To talk into headset, press belt “talk” switch
and talk into headset microphone. Release belt
switch to listen. (The selector switch must be
in “headset” position.)
NOTES:
1. Speaker/Microphone
2. Off/On/Speaker volume control
3. Talk/Listen switch
4. Headset/Speaker selector switch
5. “Call” push button switch
6. #137146 Belt switch w/15 foot cord
7. #137145 Headset w/noise cancelling
microphone
Before installing remote intercoms, precautions should be taken to prevent feedback
between two or more remotes in close proximity and acoustically reflective areas.
Power
Remote A
12–18VDC AD-26A-M34
120V 50/60Hz AD-27A-M34
22-30VDC AD-56A-M34
240V 50/60Hz AD-57A-M34
POWER CONNECTIONS:
BLK +DC Power 12/24V Models
HOT 120/240V Models
WHT Common 12/24V Models
Neutral 120/240V Models
GRN Earth Ground 120/240V
Models only
5
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