<
From version < 11.5 >
edited by Xiaoling
on 2022/06/01 11:46
To version < 3.7 >
edited by Xiaoling
on 2022/05/10 15:50
>
Change comment: There is no comment for this version

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1 1  (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
2 - **Contents:**
2 +
3 3  
4 4  {{toc/}}
5 5  
6 -
7 -
8 -
9 9  = 1. Introduction =
10 10  
11 11  This page list the default frequency band for Dragino End Devices. The frequency bands are base on TTN Frequency Bands. User can modify upgrade firmware to support different frequency band or use AT Command to change the sub band in some frequency bands.
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13 13  * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]
14 14  * Frequency Bands vs Country List : Page 11 of [[LoRaWAN Regional Parameters RP2-1.0.3>>url:https://resources.lora-alliance.org/technical-specifications/rp2-1-0-3-lorawan-regional-parameters]]
15 15  
16 -
17 -
18 18  = 2. OTAA Join Behaviour =
19 19  
20 20  For 005 LoRaWAN stack: to save battery, once boot, device will make first make 200 tries for OTAA Join, the time period of two Join Requests will depends on the DR and the airtime requirement. After this 200 Join finish, device will send a join request every 20 minutes. If device reboot, it will do above loop again.
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42 42  )))
43 43  
44 44  
40 +
45 45  === 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) ===
46 46  
47 47  * Default Uplink channel:
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130 130  ** 927.5 - SF7BW500 to SF12BW500
131 131  ** 923.3 - SF12BW500(RX2 downlink only)
132 132  
133 -(((
134 134  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.
135 -)))
136 136  
137 -
138 -(((
139 139  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.
140 -)))
141 141  
142 -
143 -(((
144 144  After Join success, the end node will switch to the correct sub band by:
145 -)))
146 146  
147 -* (((
148 -Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
149 -)))
150 -* (((
151 -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)
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)
152 152  
153 -
154 -)))
155 -
156 156  == 3.3 CN470-510 (CN470) ==
157 157  
158 158  Used in China, Default use CHE=1
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244 244  
245 245  == 3.8 MA869 ==
246 246  
247 - Country: Morroco
248 -
249 249  * Uplink:
250 250  ** 869.1 - SF7BW125 to SF12BW125
251 251  ** 869.3 - SF7BW125 to SF12BW125
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265 265  
266 266  Used in USA, Canada and South America.
267 267  
268 -
269 269  === 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. ===
270 270  
271 271  Default use CHE=2, Subband 2
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310 310  )))
311 311  * (((
312 312  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)
313 -
314 -
315 315  )))
316 316  
317 317  = 4. Frequency Bands for different server =
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