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This FAQ describes, how to connect REX button (Request to exitTo Exit) to 2N® 2N® Access Unit. In few steps you will lear how to connect the button and configure the unit to enable this feature. FAQ describes situations with both type types of buttons button - normally opened and normally closed contact.

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In certain situations (for instance in premises with higher security level like ATM room etc.) you want to control the door opening even when person is leaving. For this purpose you can connect REX button to 2N® 2N® Access Unit and once the button is pressed, device will trigger the lock. You can see typical scenario with REX button below.

How to connect "normaly opened" REX button to

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2N® Access Unit and how to configure it

  1. In first step simply connect REX button to one of the inputs of 2N® on 2N® Access Unit with via two wirewires.



  2. In second step connect to IP address of 2N® Access Unit and go to section "Hardware->Digital Inputs" and choose . Choose the input to which you you´ve connected the REX button in previous step (in our case "Input 1"). Set "Input mode" to "Non Inverted" and choose a switch, which you want to control via the REX button (In in our case it is "Switch 1")

How to connect "normally closed" REX button

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to 2N® Access Unit and how to configure it

  1. In first step simply connect REX button to one of the inputs of 2N® of 2N® Access Unit with two wire.
  2. In second step connect to IP address of 2N® Access Unit and go to section "Hardware->Digital Inputs" and choose . Choose input to which you connected the REX button in previous step (in our case "Input 1"). Set "Input mode" to "Inverted" and choose a switch, which you want to control via the REX button (In in our case "Switch 1")