The proximity backbox mifare readers are RFID devices that offer the convenience of contactless authentication for system users.  They are available for use with both Switch2 and Net2 systems.
The reader is wired as shown on the control unit label.

Note: Be sure to avoid mounting proximity readers on metal surfaces or near other proximity readers as this will affect the read range.
A token is read by holding it within close proximity of the reader. Once a token has been read the control unit looks up the access permissions of that user. The control unit verifies the information
and grants or denies access as appropriate.

If access is granted or denied, an audible tone is emitted

DS1017 PROXIMITY Backbox reader - MIFARE ®