Legrand 344704
Legrand Bticino 344704 Audio Intercom System
User Manual
Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Legrand Bticino 344704 audio intercom unit. This unit is a 2-wire audio internal station from the Swing series, designed for reliable and secure communication within your property.
Key features include conversation privacy, differentiated ringtones for various call origins (e.g., main door station, secondary door station, intercommunication calls), an integrated call indicator light, a selection of 17 melodies for each ringtone, adjustable ringtone volume, and a silent mode option. It also supports specific functions for professional use.
Product Overview

Figure 1: Front view of the Legrand Bticino 344704 audio intercom unit. This image displays the white casing, the handset, and the control buttons arranged vertically on the right side of the unit. The buttons are clearly labeled with numbers (3, 2, 1), a 'C' symbol, and an unlock symbol, indicating various functions such as intercommunication, conversation control, and door release. The coiled cord connecting the handset to the base unit is visible at the bottom.
Setup and Installation
The Bticino 344704 is designed for a 2-wire bus system. Proper installation requires adherence to local electrical codes and safety regulations. It is recommended that installation be performed by a qualified technician.
Mounting
- Choose a suitable indoor location, typically near the main entrance or in a central living area.
- Ensure the mounting surface is flat and stable.
- Use the provided mounting hardware to securely attach the unit to the wall.
Wiring (2-Wire Bus System)
- Safety First: Always disconnect power to the intercom system at the main circuit breaker before beginning any wiring work.
- Connect the two main bus wires from your intercom system to the designated terminals on the Bticino 344704 unit. Refer to the wiring diagram provided with your specific system's main control unit for exact terminal assignments.
- Ensure all connections are secure and properly insulated.
- If connecting to a door station or secondary units, follow the specific wiring instructions for those components.
After wiring, restore power and test the system's functionality.
Operating Instructions
Receiving a Call
- When a call is received, the unit will ring with the selected melody, and the call indicator light will illuminate.
- Lift the handset to answer the call and begin conversation.
Conversation Privacy
- The system ensures conversation privacy, meaning only the active internal station can hear and speak with the external caller.
Door Release
- During an active conversation, press the button marked with the unlock symbol to activate the electric door lock and allow entry.
Intercommunication (if configured)
- If your system supports intercommunication, use the numbered buttons (1, 2, 3) to call other internal stations within the same system. Refer to your system's specific configuration for button assignments.
Ringtone and Volume Adjustment
- The unit offers 17 selectable melodies. Consult the full system manual for instructions on changing melodies.
- The ringtone volume can be adjusted using the dedicated control (refer to the unit's side or bottom for the specific control).
- To activate silent mode (ringtone cut-off), adjust the volume control to its minimum setting or press the designated silent mode button if available. The call indicator light will still function in silent mode.
Maintenance
The Legrand Bticino 344704 requires minimal maintenance to ensure long-term performance.
- Cleaning: Wipe the unit's exterior with a soft, dry, or slightly damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the surface.
- Inspection: Periodically check the handset cord for any signs of wear or damage.
- No User Serviceable Parts: Do not attempt to open the unit or perform internal repairs. Refer all servicing to qualified personnel.
Troubleshooting
If you experience issues with your Bticino 344704 unit, try the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from handset | Loose wiring connection; handset cord damage; system power issue. | Check wiring connections (power off first); inspect handset cord; verify system power supply. |
| Unit does not ring | Ringtone volume set to silent; system wiring issue; external call station malfunction. | Adjust ringtone volume; check system wiring; test external call station. |
| Door release not working | Wiring issue to door lock; faulty door lock mechanism; system configuration. | Verify wiring to door lock; consult a technician for door lock inspection; check system programming. |
If these steps do not resolve the issue, please contact customer support or a qualified technician.
Specifications
- Model Number: 344704
- Brand: Legrand (Bticino)
- Product Dimensions (L x W x H): 22.2 x 9.4 x 5.7 cm (8.74 x 3.70 x 2.24 inches)
- Weight: 381 grams (0.84 pounds)
- System Type: 2-wire audio bus system
- Ringtone Melodies: 17 selectable
- Features: Conversation privacy, differentiated ringtones, call indicator light, adjustable volume, silent mode, intercommunication capability (system dependent).
Warranty Information
Legrand products are manufactured to high quality standards. For specific warranty terms and conditions applicable to your Bticino 344704 unit, please refer to the warranty card included with your purchase or visit the official Legrand website. Keep your proof of purchase for warranty claims.
Customer Support
For technical assistance, troubleshooting beyond this manual, or spare parts inquiries, please contact Legrand customer support. Contact details can typically be found on the Legrand official website or in the packaging materials.
Online Resources: Visit the Legrand official website for product documentation, FAQs, and support contact information.
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