16
9
290A4065
BLK
WHT
BLK
GRN
RED
WHT
1K
1W
ATT
AUDIO
COMMON
REMOTE A
REMOTE B
1
3
2
BLK WHT GRN
*
SEE POWER CONNECTIONS
TO OTHER INTERCOMS
*
1
3
4
2
BLK WHT GRN
*
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 to listen.
•
To use exter
nal talk switch, close switch and speak into
the speaker/micr
ophone.
NOTES:
1.
Speaker/Micr
ophone
2.
Of
f/On/Speaker V
olume Contr
ol
3.
T
alk/Listen Switch
4.
Customer
‑Supplied Exter
nal Normally
‑Open T
alk/Listen
Switch, Momentary (e.g., foot switch)
Power
Remote A
Remote B
12
‑18V
DC
AD
‑26
AD
‑26
‑2
120V 50/60Hz
AD
‑27
AD
‑27
‑2
22
‑30V
DC
AD
‑56
AD
‑56
‑2
240V 50/60Hz
AD
‑57
AD
‑57
‑2
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
