If you’re considering installing an Aiphone LEM 3 intercom system in your home or office, understanding how to wire it correctly is essential. Whether you’re a professional electrician or an enthusiastic DIYer, this guide will give you all the information you need to know about wiring the Aiphone LEM 3 intercom system.
What is an Aiphone LEM 3 Intercom System?
An Aiphone LEM 3 intercom system is a popular model in the LEM series designed to provide security and communication to multiple doors from a single master station. The LEM 3 intercom system features a door release function, allowing you to unlock the door without having to physically open it.
Additionally, the LEM 3 intercom system is an excellent option for homes and small offices since it’s easy to install and operate. With its compact design, it won’t take up much space on your wall, making it a great choice for those who want to install a discreet intercom system.
Understanding the Aiphone LEM 3 Wiring Diagram
Before you start wiring your Aiphone LEM 3 intercom system, it’s crucial to understand the wiring diagram’s layout. The wiring diagram shows the connections between the different components of the intercom system, including the master station, substation, and door station.
Here’s a detailed breakdown of the Aiphone LEM 3 wiring diagram:
Master Station Connections
The master station is the primary control center of the intercom system. It allows you to communicate with the substations and door stations and control the door release function. The master station includes the following connections:
| Connection | Cable Color | Description |
|---|---|---|
| H1 | Red | Power Supply Input |
| H2 | Green | Common Call Output |
| H3 | Yellow | Door Release Output |
| H4 | Black | Common Call Input |
| H5 | White | Intercom Line 1 Output |
| H6 | Brown | Intercom Line 1 Input |
| H7 | Blue | Intercom Line 2 Output |
| H8 | Purple | Intercom Line 2 Input |
| H9 | Gray | Call-In Signal Input |
Door Station Connections
The door station is the device installed outside the door or gate that allows visitors to call the master station. It includes the following connections:
| Connection | Cable Color | Description |
|---|---|---|
| 1 | Red | Door Release Input |
| 2 | Black | Common Call Input |
| 3 | Green | Common Call Output |
| 4 | Yellow | Speaker Output |
| 5 | White | Microphone Input |
Substation Connections
Substations are secondary intercom devices that allow communication with the master station. They include the following connections:
| Connection | Cable Color | Description |
|---|---|---|
| 1 | Red | Power Supply Input |
| 2 | Black | Common Call Input |
| 3 | Green | Common Call Output |
| 4 | Yellow | Speaker Output |
| 5 | White | Microphone Input |
Wiring an Aiphone LEM 3 Intercom System
Once you’ve familiarized yourself with the wiring diagram, it’s time to start wiring your Aiphone LEM 3 intercom system. Here’s a step-by-step guide to help you get started:
Step 1: Determine the Wiring Distance
The wiring distance between the master station and the door station and substations should not exceed 650 feet. If you plan to wire the intercom system over a more extended distance, consider using shielded cable to reduce interference.
Step 2: Wiring the Power Supply
The first connection to make when wiring the Aiphone LEM 3 intercom system is the power supply. Attach the power supply wires to H1 and H4 for the master station and substations.
Step 3: Connect the Door Release
Connect the door release output on the master station (H3) to the door release input on the door station (connection 1). This will allow you to unlock the door remotely from the master station.
Step 4: Wire the Intercom Lines
Connect the intercom line 1 output (H5) of the master station to the intercom line 1 input (H6) of the substations and door station. Connect the intercom line 2 output (H7) of the master station to the intercom line 2 input (H8) of the substations and door station.
Step 5: Connect the Common Call
Connect the common call output (H2) of the master station to the common call input (connection 2) of the substations and door station. Connect the common call output (connection 3) of the door station to the common call input (H4) of the master station.
Step 6: Connect the Speakers and Microphones
Connect the speaker output (connection 4) of the door station and substations to the speaker input of the master station. Similarly, connect the microphone input (connection 5) of the door station and substations to the microphone output of the master station.
Aiphone LEM 3 Wiring Diagram FAQs
Q: What are the power requirements for the Aiphone LEM 3 intercom system?
A: The Aiphone LEM 3 intercom system requires a standard 16 VAC transformer for power.
Q: How many substations can I connect to an Aiphone LEM 3 intercom system?
A: You can connect up to three substations to an Aiphone LEM 3 intercom system.
Q: How do I test my Aiphone LEM 3 intercom system after wiring it?
A: Once you’ve completed the wiring, turn on the power supply and test the intercom system’s functionality by pressing the call button on the door station or substation and verifying that the master station rings. You can also test the door release function to ensure it’s working correctly.
Q: What should I do if I encounter problems during the wiring process?
A: If you encounter issues while wiring your Aiphone LEM 3 intercom system, refer to the user manual for troubleshooting steps or contact Aiphone customer support for assistance.
Conclusion
Wiring an Aiphone LEM 3 intercom system may seem daunting at first, but with this guide, you should now have all the information you need to successfully install and wire your intercom system. Remember to follow the wiring diagram carefully and test the system before closing up the walls to ensure everything is working correctly.
