MENGQI-CONTROL 856443
MENGQI-CONTROL 7-inch LCD Video Door Phone Intercom System User Manual
Model: 856443 | Brand: MENGQI-CONTROL
1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your MENGQI-CONTROL 7-inch LCD Video Door Phone Intercom System. This comprehensive system integrates video intercom, password-based access control, and an electromagnetic lock for enhanced security in villas, offices, and private residences.
The system includes an indoor monitor, an outdoor camera doorbell, a password controller, a 600lbs electromagnetic lock, a ZL bracket, a power supply unit, and a push-to-exit button.
2. Product Components
The following components are included with your MENGQI-CONTROL Intercom System:

Figure 2.1: All major components of the MENGQI-CONTROL 7-inch LCD Video Door Phone Intercom System.

Figure 2.2: The 7-inch LCD indoor monitor, featuring a clear display and intuitive control buttons for communication and door release.

Figure 2.3: Dimensions of the indoor monitor, approximately 240mm x 150mm x 26mm.

Figure 2.4: Dimensions of the outdoor camera unit, approximately 125mm x 50mm x 27mm.

Figure 2.5: Detailed view of the outdoor camera, highlighting the rain cover, camera lens, IR light, call button, and speaker.

Figure 2.6: The access control keypad, used for password entry and RFID card access.

Figure 2.7: The 600lbs electromagnetic lock with its armature plate and various mounting screws.

Figure 2.8: Internal view of the power supply control unit (Model K80), providing 12V output for the system.

Figure 2.9: Diagram illustrating the installation of the ZL bracket for the electromagnetic lock on various door types.
3. Setup and Installation
Proper installation is crucial for the optimal performance and security of your intercom system. It is recommended that installation be performed by a qualified technician.
3.1 Wiring the Access Control Keypad and Lock
This video demonstrates the wiring process for connecting the power supply control unit to the access control keypad and the electromagnetic lock. It also shows how to test the lock's functionality with power on and off, and using the push-button unlock feature.
3.2 Electromagnetic Lock Installation
This video illustrates the half-embed installation method for the electromagnetic lock on a door frame. It covers marking the drill holes and securing the lock components.
Note: Ensure all wiring connections are secure and follow local electrical codes. Incorrect wiring can damage the system or pose a safety hazard.
4. Operating Instructions
4.1 Intercom Functionality
- Receiving a Call: When a visitor presses the call button on the outdoor camera, the indoor monitor will ring. Press the 'Answer' button on the indoor monitor to establish two-way communication.
- Monitoring: Press the 'Monitor' button on the indoor monitor to view the outdoor camera feed at any time.
- Speaking: Use the built-in microphone and speaker on the indoor monitor for hands-free communication with visitors.
4.2 Access Control
- Password Entry: Authorized users can enter a pre-programmed password on the access control keypad to unlock the door.
- RFID Card/Fob Access: Present a registered RFID card or fob to the access control keypad for quick entry.
- Remote Unlocking: From the indoor monitor, press the 'Unlock' button to remotely open the door for visitors.
- Exit Button: Use the 'Push to Exit' button located inside the premises to unlock the door for egress.
4.3 System Adjustments
- Brightness: Adjust the display brightness on the indoor monitor for optimal viewing.
- Chroma: Modify the color saturation of the video feed.
- Volume: Control the audio volume for both the intercom and chime.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the indoor monitor and outdoor camera. Avoid abrasive cleaners or solvents.
- Outdoor Unit: Periodically check the outdoor camera for any obstructions or debris that might affect its functionality or view. Ensure the rain cover is intact.
- Connections: Regularly inspect all wiring connections to ensure they remain secure and free from corrosion.
- Power Supply: Ensure the power supply unit is in a well-ventilated area and free from excessive heat or moisture.
6. Troubleshooting
If you encounter issues with your system, refer to the following common problems and solutions:
- No Power:
Solution: Check the power supply unit connection and ensure it is receiving power. Verify all power cables are securely connected. - No Video/Audio on Indoor Monitor:
Solution: Check the wiring between the outdoor camera and the indoor monitor. Ensure all connections are correct and secure. Verify the outdoor camera is receiving power. - Door Not Unlocking:
Solution: Verify the electromagnetic lock is receiving power and is correctly wired to the access control system. Check the functionality of the push-to-exit button and the unlock button on the indoor monitor. Ensure the access code or RFID fob is correctly programmed. - Intermittent Operation:
Solution: Loose connections are a common cause. Inspect all wiring. Ensure the power supply is stable and providing consistent voltage.
For persistent issues, contact customer support for assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 856443 |
| Indoor Monitor Display | 7-inch LCD |
| Electromagnetic Lock Holding Force | 600 lbs |
| Power Supply Input | AC110-240V, 50-60Hz |
| Power Supply Output | DC12V, 3A |
| Package Dimensions | 15.86 x 11.73 x 5.12 inches |
| Item Weight | 9.22 pounds |
| Manufacturer | SecureControl |
| First Available | November 21, 2016 |
8. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact MENGQI-CONTROL customer service. Keep your purchase receipt for warranty claims.
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