25
Operating Principle:
•
Primary can select to monitor any one or mor
e
remotes via Primary switch box.
•
To talk to r
emote(s), Primary closes desir
ed selector
switch, pr
esses talk switch, and speaks into the
speaker/micr
ophone. Primary r
eleases talk switch
to listen.
•
Selected r
emote(s) talk to Primary “hands
‑fr
ee”
without having to pr
ess r
emote talk switch.
•
Remotes cannot talk to other r
emotes.
•
Remotes not selected by Primary cannot talk
hands
‑fr
ee and must pr
ess talk switch to initiate
call to Primary
.
•
When initiating a call to Primary
, r
emote must
specify its location for Primary to r
espond.
NOTES:
1.
Speaker/Micr
ophone
2.
Of
f/On/Speaker V
olume Contr
ol
3.
T
alk/Listen Switch
4.
Primary Selector Switch (customer supplied)
5.
Double
‑Pole (OFF
‑ON) T
oggle Selector Switch
Power
Primary
Remotes
120 V 50/60 Hz
AD
‑27C
‑1
AD
‑27D
‑M4
POWER CONNECTIONS:
BLK
HOT
120/240V models
WHT
Neutral
120/240V models
GRN
Earth Gr
ound
120/240V models
290A4074
REMOTE "B"
PRIMAR
Y
SEE POWER CONNECTIONS
PRIMAR
Y SELECT
OR SWITCH BOX
TO REMOTE RB
*
REMOTE "A"
1
4
2
BLK WHT GRN
TO OTHER REMOTES
1
3
2
BLK WHT GRN
*
*
BLK WHT GRN
*
BLK
RED
GRN
WHT
BLK
RED
GRN
WHT
BLK
RED
GRN
WHT
BLK
RED
RC
RB
RA
GRN
WHT
5
3
1
2
3
18
