22
GRN
BLK
WHT
GRN
BLK
WHT
AUDIO
COMMON
CONTROL
290A4071
PRIMAR
Y
SECONDAR
Y
1
3
2
4
1
3
2
1K
1
W
AT
T
SEE POWER CONNECTIONS
BLK WHT GRN
*
*
BLK WHT GRN
*
Operating Principle:
•
Primary pr
esses talk switch to talk to
Secondary
.
•
Primary can tur
n monitor switch on and hear
everything going on at Secondary
.
•
When Primary monitor switch is of
f,
Secondary must pr
ess talk switch to talk to
Primary
.
•
When Primary monitor switch is on,
Secondary can talk to Primary hands
‑fr
ee
without pr
essing the talk switch.
NOTES:
1.
Speaker/Micr
ophone
2.
Of
f/On/Speaker V
olume Contr
ol
3.
Pr
ess
‑T
o‑
Talk Switch
4.
Moni
tor On/Of
f Switch
Power
Primary
Secondary
120V 50/60Hz
AD
‑27C
‑M22
AD
‑27
‑2W3
POWER CONNECTIONS:
BLK
HOT
120/240V models
WHT
Neutral
120/240V models
GRN
Earth Gr
ound
120/240V models
15
