Aiphone LEF3510 Instructions User Manual

– 1 –
LEF Series
OPEN VOICE SELECTIVE CALL INTERCOM
INSTALLATION & OPERATION MANUAL
LEF-3 (3-call master)
LEF-5 (5-call master)
LEF-10 (10-call master)
LEF-10S (10-call master w/all call button)
Models:
* LEF-5W, LEF-10W & LEF-10SW: 
w/Terminal Box prewired
(Not available in North America)
PRECAUTIONS
WARNING (Negligence could result in death or serious injury.)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Do not dismantle or alter the unit. Fire or electric shock could result.\
Keep the unit away from water or any...

– 1 –
LEF Series
OPEN VOICE SELECTIVE CALL INTERCOM
INSTALLATION & OPERATION MANUAL
LEF-3 (3-call master)
LEF-5 (5-call master)
LEF-10 (10-call master)
LEF-10S (10-call master w/all call button)
Models:
* LEF-5W, LEF-10W & LEF-10SW: 
w/Terminal Box prewired
(Not available in North America)
PRECAUTIONS
WARNING (Negligence could result in death or serious injury.)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Do not dismantle or alter the unit. Fire or electric shock could result.\
Keep the unit away from water or any...

– 3 –
 Features
•  Four LEF master stations, intermixable.
CapacityDoor release
All Call transmit
4 stations
6 stations X
11 stations X
Models
LEF-3
LEF-5
LEF-10
LEF-10S 11 stations XX
• Optional features:
*  All Call, chime & Music distribution (w/ BG-10C adaptor, LEF-10S only)
*  Selective door release (w/ RY-PA relay, 1 per door, excluding LEF-3)
* 8  Ω horn speaker ( AH-108 w/LT-1 transformer & NP-25V capacitor)
*  External signaling when door/sub calls (w/ RY-AC/A and external device)
WIRING:
•...

– 4 –
To remove the operation
plate, push either left or
right side of the plate.
3 MOUNTING
•  LEF-3•  LEF-5, 10, 10S•  LE room subs
 Slide LE sub down until it locks onto the prongs. 1, 2 : When running cable on the surface, pass cable through the top or \
bottom of 
the chassis and fasten with the wire clamps (attached, one outside and \
one 
inside chassis.).
 Wall-mounting
1.   Remove the operation plate by pressing down on one 
side and lifting off from the middle. Remove the paper 
directory card...

1 from a sub station can wire to any number 1, 2, or 3 but never C.
C is only used for internal communication between master stations. See be\
low.
Master to Master intercom wiring, internal communication between master \
stations
Important: Never wire C to another master station's C terminal.
Master to sub intercom only, no internal communication between master stations 
Intercom Operation: · To initiate call at sub station, push the station's Call button.  · To answer sub station call at LEF-3,...

RY-PA 
Black  Yellow to CCTV 
input 
LEF-5 channels selective gnd. is
  K  terminal corresponding to the 
number terminals. Contact will be closed 
as long as channel # 
is selected to　　　  +
to # channels selective gnd.
PS12
Door release relay wiring, one relay per door station
Operation:·  To release the door, push the Station Selector button, then press "" to release.
·   When the coil gets 12V DC, the contact changes state, momentarily. Use the relay to trigger a Request-To-Exit   
  input on...

– 7 –
5 WIRING
 Terminal definitions
  Call tone adjustment
3-position volume switch, located under operation plate.
Adjusts call tone volume to low (far left), medium, high (far right)\
. LEF-3
LEW-5LEW-10
LEF-5, LEF-10, LEF-10S
(unused terminals have no screws)
 
Selector switch for Call Tone in Occupied Mode
* IMPORTANT:  The shorting link between the  E  and   –
  terminals 
must be removed on all units  when two or more master stations 
are included in the system.  Leave it attached only in 1-master...

– 8 –
 Wiring Diagrams
• Three LEF-3 and One Door Station
 LEF All-Master configuration 
LEF all-master systems are designed to be wired in a looped fashion from\
 the first to last master. 
• A single-master system can be wired with 2 conductors homerun from each sub. (Wire #822202 or #821802 in North America)
 Cable requirements
Use multi-conductor cable with an overall shield, non-twisted, 0.65mm to 1.0mm (22AWG to 18AWG), to accommodate the 
maximum number stations in the system, each of which...

– 9 –
 Three LEF-5 Masters, Two Door Stations with Door Release
: PS-1225UL, PS-1225S, PS-1225, 
  PS-1215DINPS12
: PT-1210N in North America or 
  AC trans.PT
PT
•  Two LEF-3 and 2 Door Stations
Connect 12V DC power supply only. 
Do not connect AC.
Connect 12V DC power supply only. 
Do not connect AC.
Connect 12V DC power supply only. 
Do not connect AC.
  Six LEF-5s
Red
Yellow (2) To Power
for Doorbell
Bell
White BlackRY-AC/A
5
32C
RE
Y+–
L
+–– 4
LEF-5
15
3C1
RE
Y+
–
L 4
LEF-5
253
21
RE
Y+–
L
C
LEF-5...

– 10 –
Yellow (2)
+––
E
1
Yellow (2)
To Strike
& To Bell & Power
for station #4
To Bell & Power
for station #5
Black (2)
RY-PA
–
E
1
Yellow (2)
To Strike
&
Black (2)
RY-PA
+–
5
3C1
RE
Y+– 4
LEF-5 #2
25
32C
RE
Y+–
4
LEF-5 #1
1
1
E
–
E
–
1
1
E
–
Yellow (2)
To
Strike
&           
RY-PA
Yellow (2)
Maintained Contact* To
Strike
&            Maintained
Contact*        To
Strike
&            Maintained
Contact*   
RY-PA
Yellow (2)
RY-PA
Yellow (2)
RY-PA
Yellow (2)
RY-PA
Yellow (2)
RY-PA
5
3
2
1
RE
Y+–
LLK4K54...