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OPERATION:
1. Pressing the call button at the door station will activate a tone, plus light the red channel LED indicator at the
master. The tone will be momentary, and the light will remain activated for approximately 20 seconds.
2. The person at the master station answers the call by pressing the selector button with the lit LED. If the LED has
already gone out, the call can still be answered by pressing the selector button.
3. Communication at the master station is "press-to-talk, release-to-listen". Communication at the door station is
hands free.
4. If the "Camera Call-up" feature is included, the associated relay will provide a maintained closure as long as the
station is selected at the master.
5. With communication established to a door station, pressing the door release button (marked with key symbol, left
of TALK button) will activate the door release mechanism at the corresponding door. The door release button
will be non-functional if a station button is not pressed.
6. When the conversation is completed, the OFF button must be pressed to disengage the call.
NOTE:
The LEF-3L does not have the "privacy feature", and also cannot send a call tone to the remote stations.
SPECIFICATIONS:
Power Source: 12V DC at master. Use PS-12C.
Communication Output: 800mW @ 20 ohms (receive); 500mW @ 20 ohms (transmit)
Communication: Push-to-talk, release-to-listen at master station. Hands free at sub station.
Calling: Master to sub: By voice
Sub to master: Call tone and LED
Wiring: 2 common plus 1 individual per sub, looped; or 3 conductors homerun from each sub.
2 conductors homerun from each sub in a single-master system only.
Use Aiphone #822202 or #821802 ( 2 cond., 22 or 18AWG), or #822203 (3 cond. 22AWG)
12 conductors between master stations. Use Aiphone #822212.
Shielded cable is strongly recommended.
Wiring Distance: 650' with 22AWG; 1,600' with 18AWG.
Dimensions (HxWxD): 7-1/16" x 5-5/8" x 2-3/16"
RY-PA Contact Rating: 1A, 110V AC or 24V DC
Aiphone Communication Systems
1700 130th Ave. N.E.
Bellevue, WA 98005
(425) 455-0510
FAX (425) 455-0071
LEF-3L Instr.
0101BKJD
TOLL FREE TECHNICAL SUPPORT:
(800) 692-0200
TOLL FREE FAX LINE:
(800) 832-3765
E-MAIL: tech-serv@aiphone.com
4 OPERATIONS & SPECIFICATIONS
3 WIRING DIAGRAMS (Cont.)
1 LEF-3L, 2 Door Stations -
Shown with both Door Release and CCTV Camera Call-up relays
1
E
-
LE-D/
LE-DA
LEF-3L
1
2
3
C
E
-
+
R
Y
Wht
Brn
Red
Org
PS-12C
-
+
NOTE:
This diagram shows separate E &
- wires. In single master system
only, one wire can be used for E/-
when jumper remains attached
between E & - on master and
door stations.
Yel
RY-PA
Cam. #2
Blk
B
RY-PA
Dr. #1
Blk Yel
A
* Diode
* Diode: 1N4001 value.
Required for door strike relay
only when 2 relays are used
on any one channel.
Yel
RY-PA
Dr. #2
Blk
A
RY-PA
Cam. #1
Blk Yel
B
1
E
-
LE-D/
LE-DA
* Diode
B
A
Momentary dry closure when station is
selected and "key" button is pressed.
Connect to door strike & power.
Constant closure as long as station is
selected.