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LSN50 LoRa Sensor Node User Manual 38 / 60
AT+PORT : Application Port
AT+CHS : Get or Set Frequency (Unit: Hz) for Single Channel Mode
AT+CHE : Get or Set eight channels mode, Only for US915, AU915, CN470
3.2 Common AT Command Sequence
3.2.1 Multi-channel ABP mode (Use with SX1301/LG308)
If device has not joined network via OTAA:
AT+FDR
AT+NJM=0
ATZ
If device already joined network:
AT+NJM=0
ATZ
3.2.2 Single-channel ABP mode (Use with LG01/LG02)
See Sect 6.7