
2
290A3828-02
"SPK" SPEAKER
(WHT/BRN)
LOCAL SPEAKER/MICROPHONE
MODEL AD-SF-25
MASTER
PANEL MOUNTED
INTERCOM
"COM"
COMMON
(WHT)
2
5
6
BLK
WHT
BLK WHT
"REM SPK"
REMOTE
SPEAKER
(BLK)
"COM"
COMMON
(WHT)
200 FT. MAX.
REMOTE SLAVE SPEAKER
AD-SF-25/AD-SS-25
"PWR
+
"
(BLK)
*
SEE POWER
CONNECTIONS
*
"PWR
-
" (WHT)
1
1K
1WATT
3
4
POWER CONNECTIONS:
"PWR+" (Black) +DC-Power 12/24V Models
"PWR-" (White) Common 12/24V Models
POWER MASTER
12-18VDC AD-26-8-M44P
22-30VDC AD-56-8-M44P
NOTES:
1. Mounting Holes
2. Talk/Listen Switch
3. Master Off/On/Speaker Volume Control
4 Remote Slave Speaker Volume Control
5. Cover Plate
6. On some installations, use shielded cable if
electrical noise is picked up.
Operating Principle:
• Remote Slave station is both a speaker and
a microphone.
• Master is normally in "Listen" mode until the
talk button is pressed to talk to Remote Slave.
• Outgoing and incoming volumes are controlled
by separate controls on Master.
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