The eSSL Interlocking System 4 Door is a microcontroller-based access management controller engineered for multi-door interlocking and airlock sequence control.

• Make/Brand: eSSL
• Model: Interlocking System 4 Door
• Architecture: Microcontroller-based multi-door logic control
• Door Channels: 4 channels (SW1, SW2, SW3, SW4 for Door 4, Door 3, Door 2, Door 1)
• Reader/Switch Interface: Connects with standard push switches and access readers
• Emergency Override: Dedicated EMG input terminal for emergency break-glass / override switches
• Weight: 0.62 kg
• Applications: Cleanrooms, pharmaceutical airlocks, server rooms, and controlled industrial facilities