In high-security or contamination-sensitive environments, managing how and when doors open is critical. At Techhomes, we offer advanced Door Interlock Systems that control access between multiple doors, ensuring only one door opens at a time. This system is essential for cleanrooms, data centers, labs, banks, and high-security areas where safety, hygiene, and controlled movement are priorities.

What is a Door Interlock System?

A Door Interlock System is an intelligent access control solution that electronically links two or more doors so that they cannot be opened simultaneously. This is achieved through sensors, door magnets, and controllers that monitor the status of each door and allow access only under safe, predefined conditions.

How It Works:

• When Door A is open, Door B remains locked.
  
  
• Once Door A is closed and secured, only then will Door B be allowed to open.
  
  

The sequence ensures strict control over entry/exit pathways.

Why Choose a Door Interlock System?

✔ Contamination Control
Essential for cleanroom environments where air pressure, humidity, and contamination must be regulated.

✔ Enhanced Security
Prevents unauthorized access by enforcing single-door access at a time—ideal for vaults, server rooms, and labs.

✔ Controlled Traffic Flow
Ensures orderly and safe movement of people, reducing security risks or workflow disruptions.

✔ Central Monitoring
Track door status, user access, and trigger alerts when an access rule is violated.

✔ Flexible Integration
Works with access control systems, biometric readers, fire alarms, and building automation platforms.

Applications of Door Interlock Systems

• Cleanrooms & Pharmaceuticals
  
  
• Laboratories & Research Facilities
  
  
• Hospitals & Isolation Wards
  
  
• Data Centers & Server Rooms
  
  
• Banks & Financial Vaults
  
  
• Prisons & Detention Facilities
  
  
• High-Security Government Buildings
  
  

Components of a Door Interlock System

🔹 Interlock Controller

The core device that processes door status and grants or restricts access based on logic.

🔹 Electromagnetic Locks

Hold doors securely until system rules allow them to be released.

🔹 Door Sensors

Detect whether a door is open or closed, enabling the logic to function properly.

🔹 Push Buttons / Exit Switches

Allow controlled manual exit where permitted by access rules.

🔹 Access Devices

Such as biometric readers, RFID scanners, or keypads integrated for additional security.