Hikvision Secure Module DS-K2M061Communicates 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 Collects the door magnetic signal, the exit button signal and the tamper proof signal and send them to the access control terminal Supports tampering alarm Supports RS 485 communication indicators to show the communication status 4 ch DIP switch supporting ID No. configuration Supports a