The 2N Security Relay is designed for any 2N IP Intercom model with firmware versions 1.15 and higher. It significantly enhances the security of the connected electric lock because it prevents the lock from opening by forced intercom tampering.
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The 2N Security Relay is a small device installed between 2N IP Intercom which is placed outside the secured area and the electric lock installed inside the secured area. The interconnection scheme is shown in the picture below: