Hikvision
Hikvision DS-K2M061(O-STD) Secure Door Control Module
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Secure module. Communicates with the access control terminal via RS-485 to execute the commands from the terminal including open door, close door, normally open and normally closed Input interface: Door Magnetic×1, Tamper-proof×1, Alarm input x2; Output interface: Door Switch Relay×1, Alarm Relay×1. DC 12V.