The user interface of Nordic ID FR22 consists of 9 LED indicators: 

  • 4 LEDs for user indications
    • Power LED
    • Connection LED
    • Application LED
    • RFID LED
  • 4 LEDs to indicate the antenna ports status,
  • 1 LED for the Nordic ID Extension Port.

The location of the LEDS can be seen in Picture.

Locations of LEDs



POWER LED



By default, the Power LED indicates if power is supplied to the device.


Green indicates that the device is powered.


No light indicates that the PoE port is not powering the device.


 The Power LED turns yellow during the upgrade procedure. DO NOT POWER THE DEVICE OFF DURING THIS PROCESS




During the boot sequence after powering the device, the Application LED will also flash red and/or green (see 2.5.3).




CONNECTION LED



Connection LED indicates whether the reader has established a network (TCP/IP) connection, i.e. Ethernet, WLAN or LTE connection.


Off: All the communication indicates are disabled.


Blinking green: Any communication interface is enabled but not connected. For example, Ethernet interface is         enabled but the device doesn’t have an assigned IP address.

Stable green: At least one communication interface is connected and ready to communicate, i.e., 

the reader has IP address.



Application LED


Stable red: RFID module firmware (NUR service) not running.


Slow blinking green: RFID module running, ready to be used.


Stable green: An application is connected to the RFID module.


Fast blinking green: An application is sending commands to the RFID module, it’s in use.


When the Nordic ID FR22 is in "ready" status, the Power, Connection and Application LEDS are all green at the same time (App LED can be blinking green if the host application is not using the RFID module yet).



RFID LED


RFID LED indicates whether the RFID reading is ON or OFF.


Off: The RFID module is not transmitting.


Fast blinking/stable green: The RFID module is transmitting RF commands (read, write, inventory, etc).



Antenna LEDS



Antenna LEDs are used to indicate the antenna ports configuration, i.e., whether an RFID antenna port is enabled or not, even if an antenna is not connected or it is not reading.


 Off: Antenna port disabled.


Green: Antenna port enabled.



Extension LED


The Extension LED is used to indicate whether the Nordic ID Extension Port is being used or not.