LEM-1 MANUAL E TH 0901 A
LE Series
MASTER SELECTIVE INTERCOM
Models: LEM-1
LEM-3
INSTALLATION & OPERATION MANUAL
1 SYSTEM OUTLINE & COMPONENTS
LEM Open Voice Master Selective Intercom System is a single master system with 1- and 3-call master stations. Works with “LE” style door and inside sub stations.
LE-A/AN
LE-D |
LEM-1 |
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LE-D |
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LEM-3 |
LE-A/AN |
PS6 |
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PS6
Package contents
PS6 : 6V DC power supply.
Components available
•LEM master (LEM-1 or LEM-3)
•Mounting bracket (LEM-1 only)
•Packet of screws
•Installation & Operation Manual
• Master stations • Sub stations • Power supply
LEM-1, |
LEM-3, |
LE-A, |
LE-AN, |
LE-D, |
LE-DA, |
PS-6D,PS-6M or |
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1-call |
3-call |
w/CALL |
w/PRIV. |
surface- |
flush- |
SKK-620 in USA |
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and call |
mount |
mount |
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2 NAMES & FEATURES
LEM-1 |
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LEM-3 |
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Speaker/mic. |
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Speaker/mic. |
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OFF switch |
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Sub/door |
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Tone-CALL button |
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call-in LED |
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Directory |
TALK (LISTEN) |
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Voice volume |
button |
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control |
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Selector button |
Voice volume |
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OFF switch |
TALK (LISTEN) button |
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control |
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Features Single-master open voice communication
•1 or 3-call masters
•2 conductors per sub, homerun
•Voice or tone call
•Desk or wall-mount use
•Handsfree remote reply at sub
–1 –
3 PRECAUTIONS ON INSTALLATION & WIRING
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.
•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.
PS-6D or SKK-620 |
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LEM |
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Red (+) |
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+ |
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6V DC |
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White or Black(-) |
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Install a surge-arrester( discharging |
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voltage: 100 180V) at a point |
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Surge-arrester |
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close to the output, taken to earth |
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(Aiphone model:SA-1) |
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ground. |
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Grounded |
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Before actually mounting the LEM equipment, the contents of this Manual must be thoroughly read and understood.
4WIRING
Actual terminal locations
LEM-1 |
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LEM-3 |
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+ |
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– |
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– |
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E |
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E |
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2 |
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3 |
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+, – : 6V DC power supply
E: Common communication
1 ~ 3: Sub 1 ~ 3 calling and communication
– 2 –
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