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CAUTION
★ LEM equipment, except for LE-D or LE-DA, is designed for indoor use only.
Do not install outdoors.
★ LEM is an electrical device, which must not be exposed to water or any other liquid.
★ Do not connect AC wires to any terminal on any unit.
★ Do not connect any power source other than specified to terminals +, – on LEM.
Doing so can cause fire or damage the unit.
★ Unplug power supply while making any wire terminations.
★ Do not install LEM equipment in any of the following locations, as it may cause the system to malfunction;
– High or extreme cold temperature areas: under direct sunlight, near equipment that varies in temperature, in
front of air-conditioner, inside a refrigerated area, etc.
– Places subject to moisture or humidity extremes,
– Places subject to environmental conditions, such as oil, dust, chemicals, salt, etc.
– Places subject to constant vibration or impact.
IMPORTANT–Observe the following to prevent fire, injury to people, malfunction, or damage to the equipment.
★ Do not open the LEM equipment except for wiring. Ask qualified personnel.
★ Do not change or modify LEM.
★ Keep moisture away from unit and AC cord.
★ Keep all DC wiring at least 30cm, 20” away from AC wiring, fluorescent lighting, or dimmer switches. Cross AC wiring
at a 90° angle.
★ Keep AC cord (power supply) and DC wiring from being pulled or crushed.
★ LEM is not operable during a power failure.
★ In areas where broadcasting station antennas are close by, intercom system may be affected by radio frequency
interference.
★ Make sure wires are connected properly before plugging in DC power supply.
★ Severe weather conditions, such as lightning storms, may cause damage to LEM equipment. We recommend that
power surge protection be installed as follows: (However, this does not guarantee that no damage will occur.
Ⅲ Before actually mounting the LEM equipment, the contents of this Manual must be thoroughly read and understood.
+, – : 6V DC power supply
E: Common communication
1 ~ 3: Sub 1 ~ 3 calling and communication
Install a surge-arrester( discharging
voltage: 100 180V) at a point
close to the output, taken to earth
ground.
Grounded
Surge-arrester
(Aiphone model:SA-1)
PS-6D or SKK-620
LEM
6V DC
Red (+)
White or Black(-)
-
+
3
3
P
RE
C
A
U
TI
O
N
S
O
N IN
S
TALLATI
O
N
&
WIRIN
G
•
If the power suppl
y
has a
G
R
O
UN
D
t
erminal, take it to an earth
g
round.
I
n this case, a separate sur
ge
a
rrester is not necessar
y.
•
When usin
g
a power supply tha
t
h
as no
G
R
O
UND terminal
,
install
a
s
urge arrester near t
h
e output a
s
sh
own.
4
4
4
4
W
IRIN
G
LEM-1 LEM-3
Ⅵ
A
c
t
ua
l t
e
rmin
a
l l
oca
ti
o
n
s
E
1
–
+
E
1
2
3
–
+