Connection Diagram

CCTEK B965D-SW is a wall mount 2 wire non-polarity analogue single line speakerphone built-in with microphone and automatic hang-up tone detection. The NO/NC relay enable user to open electromagnetic lock (EM Lock) by press # button from his desktop phone. No external power required, easy installation, just connect 2 wire from PBX single line extension port. It is an ideal solution for long distance intercom phone or door phone connect to your PBX or keyphone system.
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Connection Diagram