More information about Enless sensors and their behavior
LoRaWAN class : class A Frequencies used: 3 frequencies can be used: 868.100 MHz, 868.300 MHz, 868.500 MHz. LoRaWAN version : V1.0.2revB Activation : OTAA Activation keys : DEVEUI, APPEUI, APPKEY
LoRaWAN class : class A Frequency used: 64 frequency channels can be used. The frequency spectrum of these channels starts at 902.3 MHz and increases linearly by 200 kHz, reaching 914.9 MHz. LoRaWAN version : V1.0.4 Activation : OTAA Activation keys : DEVEUI, APPEUI, APPKEY
EU 868 products:
When powered up, the transmitters perform a JOIN request.
After 24Hr , they send a LinkCheckReq message that needs to be confirmed with a LinkCheckAck. And so on every 24 hours. When the LinkCheckReq has been confirmed with a LinkCheckAck, the transmitter will not send another JOIN request.
If the LinkCheckReq message does not receive a LinkCheckAck response, further LinkCheckReq messages will be sent. If 6x LinkCheckReq messages do not receive a response, the transmitter will then initiate a new JOIN procedure.
US915 products:
When powered up, the transmitters perform a JOIN request.
After 37 hours, they send a LinkCheckReq message which should be confirmed by a LinkCheckAck. And so on every 37 hours. As long as the LinkCheckReq are confirmed by a LinkCheckAck, the transmitter will not send a new JOIN.
If the LinkCheckReq message does not receive a LinkCheckAck response, then new LinkCheckReq will be sent in the process. If 6x LinkCheckReq, spaced by the periodicity with which the transmitter is configured, receive no response, then the transmitter initiates a new JOIN procedure. If the JOIN procedure is not successful, the transmitter will enter sleep mode and reinitiate a JOIN procedure after 37 hours.
For EU 868 products, when the transmitter initiates a JOIN request for the first time, the Spreading Factor is fixed at SF12 and BW125. The transmitter will not change its SF unless it receives a LinkADRReq from the gateway, requesting it to use a different SF parameter