3PRECAUTIONS 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

 

 

LEM

 

 

 

 

 

 

 

 

Red (+)

 

 

 

 

 

 

 

 

 

 

 

+

 

6V DC

 

White or Black(-)

 

 

 

 

-

 

 

 

 

 

 

 

 

Install a surge-arrester( discharging

 

 

 

 

 

 

 

 

 

 

 

 

voltage: 100180V) at a point

 

Surge-arrester

close to the output, taken to earth

 

(Aiphone model:SA-1)

ground.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Grounded

 

Before actually mounting the LEM equipment, the contents of this Manual must be thoroughly read and understood.

4WIRING

Actual terminal locations

LEM-1

+

E

1

LEM-3

+

E

1

2

3

+, : 6V DC power supply

E: Common communication

1 ~ 3: Sub 1 ~ 3 calling and communication

– 2 –

Page 2
Image 2
Aiphone LEM-3, LEM-1 operation manual Precautions on Installation & Wiring, Actual terminal locations

LEM-3, LEM-1 specifications

The Aiphone LEM-1 and LEM-3 are advanced intercom systems designed to facilitate clear communication in various environments, including commercial, residential, and institutional settings. These units are part of Aiphone's extensive lineup of intercom products, known for their reliability and user-friendly features.

The LEM-1 is a single-button intercom, while the LEM-3 boasts three buttons for calling different stations. Both systems utilize high-quality audio technology to ensure crystal-clear communication. The units are equipped with a sensitive microphone and a powerful speaker that work together to minimize background noise and enhance the clarity of conversations. This is particularly beneficial in busy environments where clear communication is a necessity.

One of the standout features of the LEM-1 and LEM-3 is their ease of installation. Designed for both indoor and outdoor use, they can be mounted on walls or desks, making them versatile for various applications. Their weather-resistant design ensures reliable performance in different environmental conditions, thus extending their usability in outdoor settings.

The intercom systems utilize a two-wire installation method, simplifying the wiring process and reducing installation time. This technology also allows for a direct connection to the power supply, eliminating the need for external transformers. Additionally, both models feature a sleek, modern design that complements any décor.

For users concerned about privacy and security, the LEM-1 and LEM-3 incorporate advanced features such as a privacy function that allows users to temporarily disable the microphone, ensuring conversations remain confidential when needed. Furthermore, the volume control knob provides easy adjustments to the audio levels, allowing users to customize their experience based on individual preferences.

Another important characteristic of these intercoms is their compatibility with a wide range of Aiphone products, enabling users to create a comprehensive communication system tailored to their needs. Whether used in a home, office, or medical facility, the LEM-1 and LEM-3 serve to enhance communication efficiency.

In summary, the Aiphone LEM-1 and LEM-3 intercom systems represent a fusion of innovative technology and user-friendly design. With their robust features, easy installation, and compatibility with other devices, these intercoms provide an effective solution for reliable communication in diverse settings. Users can trust that they will achieve seamless connectivity, whether in a busy office or as a vital link in a healthcare environment.