20
Operating Principle:
•
When one talks, all inter
coms will hear
.
•
To talk to other stations, pr
ess the talk/listen switch
and speak into the speaker/micr
ophone. Release talk
switch tolisten.
•
Pr
essing the call button on r
emote A pr
ovides a
contact closur
e for an attention
‑getting auxiliary
signaling device, e.g. a str
obe light.
NOTES:
1.
Speaker/Micr
ophone
2.
Of
f/On/Speaker V
olume Contr
ol
3.
Listen/T
alk Switch
4.
“Call” Switch
5.
Customer
‑Supplied Auxiliary Signaling Device
(e.g., str
obe light)
Power
Remote A
Remote B
12
‑18
VDC
AD
‑26
‑3
AD
‑26
120V 50/60Hz
AD
‑27
‑3
AD
‑27
22
‑30
VDC
AD
‑56
‑3
AD
‑56
240V 50/60Hz
AD
‑57
‑3
AD
‑57
POWER CONNECTIONS:
BLK
+DC Power
12/24V models
HOT
120/240V models
WHT
Common
12/24V models
Neutral
120/240V models
GRN
Earth Gr
ound
120/240V models only
BLK
AUDIO CABLE
AUDIO CABLE
TO OTHER INTERCOMS
AUDIO LINE
RED
WHT
BLK
-
POWER
+
POWER
WHT
GRN
290A4069
REMOTE "A"
REMOTE "B"
AUXILLIAR
Y
SIGNALING DEVICE
1
5
3
2
1K
1
W
AT
T
SEE POWER CONNECTIONS
BLK WHT GRN
*
*
BLK WHT GRN
*
1
3
2
4
13
