Aiphone LEF-3L User Manual

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3
Cabling
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Precautions on Installation & Wiring:
· Make sure to have the proper power supply(ies) and all necessary and compatible equipment for the system.
· Lay out the system in advance, assigning station numbers for all sub station locations.
· Any third party products installed with this system (power supply, external signaling device, etc.) are not covered under
Aiphone's warranty.
· Shielded wire is strongly recommended. Refer to Wiring Distance chart above for wire gauge recommendations.
■
Cable:
· Use multi-conductor cable with an overall shield, non-twisted, 22AWG to 18AWG (0.65mm to 1.0mm) 12 conductor
cable between master stations. Refer to Wiring Distance chart above for wire gauge recommendations.
· In a SINGLE MASTER STATION SYSTEM ONLY: Sub stations can be wired with 2-conductors homerun. Jumpers
between
E
and
-
must be attached on all sub stations and at the master station.
· Multi-conductor cable must be used between master stations. If more than one cable is used to connect master
stations, the
E
,
C
, and number terminal wires must be in the same jacketed cable. If necessary, run multiple
E
wires,
one in each cable.
■
Wiring Method:
· Run intercom wires at least 50cm (20") away from all AC wiring, fluorescent lights, dimmer switches, and other electrical
or electronic devices. Intercom wiring can cross AC wires at 90 degree angles.
· Sub stations can be homerun to the nearest master station or daisy-chained. If daisy-chained, include 2 common wires
plus 1 individual wire per station on the run.
Wire Reference Chart (North America only)
Standard Communication
With selective door release and/
or camera call-up
Model # # of Conductors Wire # (22AWG) Wire # (18AWG) # of Conductors Wire # (22AWG)
LEF-3L 9 822210 x 12 822212
LE-A 3 822203 821803 x x
LE-D 3 822203 821803 x x
LE-DA 3 822203 821803 x x
Wiring Distance
-
+
-
+
M1 M2 PS M3
PS
A
B
D1 D2
12V DC
POWER ONLY
12V DC
POWER ONLY
RY-PA
Figure 1
WIRING DISTANCE
Wire
Distance
（
MAX
）
A B
φ0.65 ｍm（22AWG） 200 m（660'） 100 ｍ（330'）
φ1.0 ｍm（18AWG） 480 m（1575'） 240 ｍ（780'）
Figure 2

Aiphone LEF-3L Specifications

Power

power source	12V DC
communication output (receive)	800mW @ 20 ohms
communication output (transmit)	500mW @ 20 ohms

Wiring

wiring distance with 22AWG	650'
wiring distance with 18AWG	1, 600'
dimensions (HxWxD)	7-1/16" x 5-5/8" x 2-3/16"

Relay Specifications

RY-PA contact rating (AC)	1A, 110V
RY-PA contact rating (DC)	1A, 24V
use PS-1225UL	yes