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SYSTEM OUTLINE & COMPONENTS (Cont.)
Call tone adjustment
3-position volume switch, located under Operation plate.
Adjusts call tone volume to low (far left), medium, high (far right).
Selector switch for Call Tone in Occupied Mode
LEF surface mount master stations are set in the "B" position from
the factory. This allows a sub call-in tone to be heard at a muted
level while the master is in the occupied mode.
“A” position: Mutes call tone at master while system is in
occupied mode.
“B” position: Call tone is heard when master is in occupied
mode.
*No call tone between masters.
Cable requirements
Use multi-conductor cable with an overall shield, non-twisted, 22AWG to 18AWG (0.65mm to 1.0mm), to accommodate
the maximum number stations in the system.
Use the gauge specifi ed for the maximum distance between the two farthest stations.
Power supply
The entire LEF system can be powered by one power supply (PS-1225UL/PS-1225S 12VDC 2.5A or PS-1215DIN
12VDC 1.5A), located near the center of the wire run.
For a system including the All Call and Chime with the BG-10C, one PS-1225UL(S) or PS-1215DIN will power the BG-
10C and the LEF system.
CALL
3-pos. call tone vol. switch
(under Operation plate)
LEF-3L
(FRONT CASE BACK VIEW)
A
B
(when shipped)
LEF-3L