AB Double Door Interlocking System

An Example of AB Door Double Door Interlocking

After installing the AB double-door interlocked access control system at the entry and exit channels, individuals must close the first door after passing through and undergo identity verification before the second door can be opened. This effectively isolates the space on both sides of the channel, preventing situations such as inmates or suspicious individuals following into the secure area. The double-door interlock system can also be integrated with closed-circuit television equipment to monitor personnel entering and exiting the center. Additionally, biometric devices (such as card readers, fingerprint lockers, facial recognition devices, and palm scanners) can be installed to achieve a more intelligent联动 of the AB double-door interlock access control. [Image]

Section II: Key Features of AB Interlocking System

1. Simple Wiring Maintenance: The entire system is connected to devices such as the AB door's interlocking lock, card reader, fingerprint machine, etc., via a single 4-core bus. This is a stark contrast to the complex wiring of traditional access control systems, making installation and maintenance easier.

2. Interlocking Function: The entire system is divided into two doors, A and B. If entering the AB passage area from door B, the lock on door B must be closed before the lock on door A can be unlocked; otherwise, door A cannot be opened (the key cannot unlock it either).

3. Emergency Lockdown Feature: In the event of an abnormal situation, the on-duty staff can press the "Emergency Lock" button to lock both door locks. At this point, neither buttons nor keys can unlock them, isolating suspicious individuals from the outside, thereby ensuring the safety of supervision. The system will resume normal operation after manual reset. This feature is highly beneficial to on-duty police officers, as using it during night shifts enhances safety; even if inmates obtain the keys, they cannot open the door!

4. Emergency Unlock Function: In the event of an emergency requiring evacuation or rapid support for large numbers of people or goods through the AB door passage, simply press the "Emergency Unlock" button. Both the inner and outer doors will simultaneously unlock and remain open, creating a passage for quick evacuation or support. The system will return to normal after manual reset.

5. Door Status Voice Prompt Function: When the inner or outer door of the interlocked door is in an unlocked state, a prompt to close the door is given. After more than 10 seconds (the time can be set as needed), the lock body emits an audio-visual voice alarm.

6. Power Failure Delay Function: The system power box is equipped with an integrated switch power supply and a delay power supply battery, ensuring normal operation during a power outage.

7. Manual Override Feature: In the event of a power outage for both the main and backup power supplies or a fault in the electrical control system, the feature of manual key activation ensures that the AB door remains in a controlled state.

8. Convenient Expansion Features: The system can be configured with various card readers and biometric devices (password card readers, fingerprint lockers, facial recognition systems, palm scanners, etc.) to meet different requirements; it can trigger alarms and link with other facilities such as lighting, surveillance, and alarms; and it can export information on the entry and exit of personnel through A and B doors.

9. Remote Networking Control Function: According to specific control requirements, after configuring a local area network controller, remote control can be achieved within the internal network. It allows real-time monitoring of the on/off status of AB doors and provides remote control capabilities for the doors.

III. Summary

The AB double-door interlocking system has been extensively applied in bank access control systems and other secure passage doors, where it plays a significant role in enhancing personnel access control and property safety. As this access control technology becomes more mature and feature-rich, it is poised to be widely used in various important locations beyond the aforementioned. It can also be integrated with surveillance systems and alarm devices to achieve a highly intelligent proactive defense performance, playing a crucial role in the security system.