Aiphone LEM-3 사용자 설명서

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★ 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.

䡲

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

∼180V) at a point 

6V DC

Red (+)

White or Black(-)

-

+

• If the power supply has a GROUND

terminal, take it to an earth ground.
In this case, a separate surge
arrester is not necessary.

• When using a power supply that

has no GROUND terminal, install a
surge arrester near the output as
shown.

䡵 Actual terminal locations