2N 9137413E intercom system accessory

Need to use an intercom to switch on the lights or call a lift, but the devices are too far apart for direct cable connections? Opt for an external IP relay, which can be controlled using both HTTP and HTTPS commands from a 2N IP intercom or access unit. HTTPS support ensures more secure communication, and the IP relay input also lets you connect devices like exit buttons to switch the output locally.