Our Secure I/O Relay Box has been specifically designed to work with our CSS series, offering an extra level of security and functionality to the system.

FEATURES HIGHLIGHTS

• -Compatible with CSS-R11 for Single or multi doors control structure.
• -Built-in Watch-dog (Watch Dog).
• -Support door sensor detection, short or open.
• -Support Wiegand input, exit button, door sensor, WG reader contacts.
• -CSS-A11 supports POE for easy installation.
• -RS485 communication control relay for providing the high security level. In the emergency mode, when controller is disconnected, exit button still could have function.
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