Hi Alan,
Sure, after pressing the Reset button, the device is scanning for any open network.
Please look at the LED Indication of Different States in the documentation.
"C:\NXP\bstudio_nxp\workspace\JN-AN-1220-Zigbee-3-0-Sensors\Doc\JN-AN-1220-ZigBee-3-0-Sensors.pdf"
-If a sensor node does not find a suitable network to join, it goes into a soft sleep after scanning all the primary and secondary channels.
Regards,
Mario