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NOTES:
1. Speaker/Microphone
2. Off/On/Speaker volume control
3. Outgoing Volume Control
4. Speaker Model AD‑SS‑25 with swivel
mounting bracket or Speaker Model
AD‑SF‑25 with holes in outer flange for
flush mounting
5. PTT (press‑to‑talk) switch
(customer supplied)
OPERATING PRINCIPLE:
1. Primary station is both a speaker and a microphone.
2. Primary is normally in “Listen” mode until the PTT (press‑to‑talk) switch is pressed to
talk to Secondary.
3. Outgoing and incoming volumes are controlled by separate controls on Secondary.
4. Secondary talks to Primary hands‑free, without having to press a talk switch.
POWER CONNECTIONS:
BLK
+DC Power
12/24 V Models
WHT Common
12/24 V Models
POWER
SECONDARY
12‑18VDC AD‑26D‑8‑M44
GRN
WHT
RED
BLK
GRN 1
WHT 2
AUDIO
CONTROL
200 FT. MAX.
COMMON
290A4068
SECONDARY
PRIMARY SPEAKER
1
2
4
3
SEE POWER
CONNECTIONS
BLK
WHT
1K
1WATT
*
*
5
PRIMARY
SPEAKER
12