Changes for page End Device Frequency Band
Last modified by Edwin Chen on 2024/10/21 20:35
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... ... @@ -1,5 +1,5 @@ 1 1 (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %) 2 - 2 + **Contents:** 3 3 4 4 {{toc/}} 5 5 ... ... @@ -126,14 +126,26 @@ 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 +))) 130 130 133 + 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 +))) 132 132 138 + 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) == 139 139 ... ... @@ -272,12 +272,24 @@ 272 272 273 273 === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] === 274 274 287 +((( 275 275 There is an 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 work for the LoRaWAN server use sub-band2 , such as TTN. To solve this, the user needs to use a USB-TTL adapter to connect to the end node to manually set the sub-band which is very inconvenient. 289 +))) 276 276 291 +((( 292 + 293 +))) 294 + 295 +((( 277 277 So since **Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]**, we have improved this, 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, In this case, In this case, the end node can support LoRaWAN servers with different subbands. To make sure the end node will only transmit the proper sub-band after OTAA Joined successfully, the end node will: 297 +))) 278 278 279 -* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband 280 -* Use the Join successful sub-band if the server doesn't include subband info in the OTAA Join Accept message ( TTN v2 doesn't include) 299 +* ((( 300 +Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband 301 +))) 302 +* ((( 303 +Use the Join successful sub-band if the server doesn't include subband info in the OTAA Join Accept message ( TTN v2 doesn't include) 304 +))) 281 281 282 282 = 4. Frequency Bands for different server = 283 283