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1	1	(% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
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	2	+ **Contents：**
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4	4	{{toc/}}
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126	126	** 927.5 - SF7BW500 to SF12BW500
127	127	** 923.3 - SF12BW500(RX2 downlink only)
128	128
	129	+(((
129	129	There is a issue if the end node is fixed at sub-band2. The sensor won't be able to register to other sub-band and can only works for the LoRaWAN server use sub-band2 , such as TTN. To solve this, user need to use a USB-TTL adapter to connect to the end node to manually set the sub-band which is very inconvinient.
	131	+)))
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	134	+(((
131	131	So since **Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]**, To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.
	136	+)))
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	139	+(((
133	133	After Join success, the end node will switch to the correct sub band by:
	141	+)))
134	134
135		-* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
136		-* Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
	143	+* (((
	144	+Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
	145	+)))
	146	+* (((
	147	+Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
	148	+)))
137	137
138	138	== 3.3 CN470-510 (CN470) ==
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