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INSTALLATION & OPERATION MANUAL
The LEF-3L is a compact, wall or desk mount master station with the ability to selectively release a door or call up a CCTV
camera.
Used with any LE (except LEF-3, 5 and 10) or LS Series (North America only) station. Communication can be established
with each station by selecting the channel on the master station. While the channel is selected, pressing the door release
button (left of TALK button) will release only the associated door. When used for CCTV camera call-up, a relay closure
will be maintained as long as a station is selected. The system can have up to four stations, in any combination of master
stations or door stations (e.g. 2 masters and 2 doors). Master-to-master communication is also a standard feature.
If communication between master stations is not required, multiple LEF-3L's can be used to talk to 3 door stations.
PRECAUTIONS
WARNING
(Negligence could result in death or serious injury.)
1. Do not dismantle or alter the unit. Fire or electric shock could result.
2. Do not connect any non-specified power source to the +, - terminals. Also, do not install two power supplies in
parallel to a single input. Fire or damage to the unit could result.
3. Keep the unit away from water or any other liquid. Fire or damage to the unit could result.
4. When existing chime wires are used, it is possible that they contain AC voltage. Electric shock or unit damage
could result. Ask a qualified technician.
5. Do not use power supply with a voltage other than specified. Fire or electric shock could result
.
6. For power supply, use Aiphone power supply model specified to use with system. If non-specified product is
used, fire or malfunction could result.
CAUTION
(Negligence could result in injury or damage to property.)
1. Before turning on the power, make sure wires are not crossed or shorted. Fire or electric shock could result.
2. When mounting the unit on wall, install the unit in a convenient location, but not where it could be jarred or
bumped. Injury could result.
3. Do not install or make any wire terminations while power supply is plugged in. It can cause electrical shock or
damage to the unit.
4. In case of electrical storms, unplug the unit from AC outlet. If not, fire or electric shock could result.
5. Do not install the unit in any of the following locations. Fire, electric shock, or unit trouble could result.
* Places under direct sunlight, or near heating equipment that varies in temperature.
* Places subject to dust, oil, chemicals, hydrogen sulfide (hot spring).
* Places subject to moisture and humidity extremes, such as bathroom, cellar, greenhouse, etc.
* Places where the temperature is quite low, such as inside a refrigerated area or in front of air-conditioner.
* Places subject to steam or smoke (near heating or cooking surfaces).
* Where noise generating devices such as dimmer switches or invertor electrical appliances are closeby.
* Locations subject to extremely powerful electric fields.
6. Do not install the unit in a location subject to frequent vibration or impact. It may fall or tip over, resulting in
damage to the unit or personal injury.
GENERAL PRECAUTIONS
1. Keep the unit more than 1 m (3.3') away from Radio or TV sets.
2. In areas where broadcasting station antennas are closeby, the intercom system may be affected by radio
frequency interference.
3. The unit will not work during power failure.
4. All units, except for door stations, are designed for indoor use only. Do not use at outdoor locations.
5. Using a mobile phone or professional-use radio equipment such as walkie-talkie close to the system may cause a
malfunction.
LEF-3L
3-Call Master Station with Selective Door Release
Compatible with any LEF Series Door or Sub Station
Prohibited Keep unit away from water
Do not dismantle unit
Be sure to follow the instruction
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