<
From version < 98.22 >
edited by Xiaoling
on 2022/05/07 17:47
To version < 91.1 >
edited by Xiaoling
on 2022/05/06 16:26
>
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Content
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1 1  (% style="text-align:center" %)
2 2  [[image:Main.User Manual for All Gateway models.WebHome@pg1302.jpg]]
3 3  
4 4  
5 5  
8 +
9 +
10 +
11 +
6 6  **PG1302 LoRaWAN Concentrator User Manual**
7 7  
8 8  
9 9  
16 +
17 +
10 10  {{toc/}}
11 11  
12 12  
21 +----
22 +
13 13  (% class="wikigeneratedid" id="H" %)
14 14  (((
15 15  
... ... @@ -20,17 +20,83 @@
20 20  ==== 1.1 What is PG1302 LoRaWAN Concentrator? ====
21 21  
22 22  (((
23 -The PG1302 is a multi-channel high performance transmitter/receiver designed to simultaneously receive several LoRa packets using random spreading factors on random channels. Its goal is to enable robust connection between a central wireless data concentrator and a massive amount of wireless end-points spread over a very wide range of distances.
33 +(((
34 +(((
35 +(((
36 + The PG1302 is a multi-channel high performance transmitter/receiver designed to simultaneously receive several
24 24  )))
38 +)))
25 25  
26 26  (((
27 -The PG1302 is design to use with Raspberry Pi to build smart metering fixed networks and Internet of Things applications with up to 5000 nodes per km2 in moderately interfered environment.
41 +(((
42 + LoRa packets using random spreading factors on random channels. Its goal is to enable robust connection
28 28  )))
29 29  
30 30  (((
31 -PG1302 is fully compatible with RPi3/4, users can use the pre-build OS from Dragino to set up and easy to use the module by Web UI. Or install the raw lorawan driver in the exist OS.
46 + between a central wireless data concentrator and a massive amount of wireless end-points spread over
32 32  )))
33 33  
49 +(((
50 + a very wide range of distances.
51 +)))
52 +)))
53 +)))
54 +
55 +(((
56 +(((
57 +(((
58 +
59 +)))
60 +)))
61 +)))
62 +)))
63 +
64 +(((
65 +(((
66 +(((
67 +(((
68 + The PG1302 is design to use with Raspberry Pi to build smart metering fixed networks and Internet of Things
69 +)))
70 +)))
71 +
72 +(((
73 +(((
74 + applications with up to 5000 nodes per km2 in moderately interfered environment.
75 +)))
76 +)))
77 +)))
78 +
79 +(((
80 +(((
81 +(((
82 +
83 +)))
84 +)))
85 +)))
86 +)))
87 +
88 +(((
89 +(((
90 +(((
91 +(((
92 + PG1302 is fully compatible with RPi3/4, users can use the pre-build OS from Dragino to set up and easy to use the
93 +)))
94 +)))
95 +
96 +(((
97 +(((
98 + module by Web UI. Or install the raw lorawan driver in the exist OS.
99 +)))
100 +)))
101 +)))
102 +)))
103 +
104 +(((
105 +(((
106 +
107 +)))
108 +)))
109 +
34 34  ==== 1.2 Features ====
35 35  
36 36  * Base on Semtech SX1302 solution
... ... @@ -54,12 +54,19 @@
54 54  
55 55  ==== 1.5 LEDs ====
56 56  
133 +(((
57 57   TX: Blink when transmit a packet
135 +)))
136 +
137 +(((
58 58   RX: Blink when receive a packet
139 +)))
140 +
141 +(((
59 59   Config: Always ON
143 +)))
60 60  
61 61  
62 -
63 63  ==== 1.6 Power Consumption ====
64 64  
65 65   TBD
... ... @@ -78,8 +78,15 @@
78 78  
79 79  ==== 2.1 System structure ====
80 80  
81 -This example is an example to show how to set up the PG1302 + RPi as a LoRaWAN gateway to use with [[TheThingsNetwork>>url:http://www.thethingsnetwork.org/]](TTN) LoRaWAN server. Set up method for other server are similar.
164 +(((
165 + This example is an example to show how to set up the PG1302 + RPi as a LoRaWAN gateway to use with
166 +)))
82 82  
168 +(((
169 + [[TheThingsNetwork>>url:http://www.thethingsnetwork.org/]](TTN) LoRaWAN server. Set up method for other server are similar.
170 +)))
171 +
172 +(% style="text-align:center" %)
83 83  [[image:1651743698677-436.png||height="457" width="686"]]
84 84  
85 85  
... ... @@ -86,8 +86,9 @@
86 86  
87 87  ==== 2.2 Hardware Installation ====
88 88  
89 -**Important Notice: **Please power the RPI with 5V,3A cable.
179 +**~ Important Notice: **Please power the RPI with 5V,3A cable.
90 90  
181 +(% style="text-align:center" %)
91 91  [[image:1651743803032-803.png]]
92 92  
93 93  
... ... @@ -94,7 +94,7 @@
94 94  
95 95  === 3. Install the software? ===
96 96  
97 -There are two ways to install software in RPi4 to use PG1302.
188 + There are two ways to install software in RPi4 to use PG1302.
98 98  
99 99  * Flash SD card with Dragino pre-build image which support Web UI.
100 100  * Install lora packet forwarder in existing RPi OS.
... ... @@ -103,14 +103,16 @@
103 103  
104 104  ==== 4.1 Download the dragino image for RPI ====
105 105  
106 -Download PG1302_for_Rpi4_64_with_webui from
107 -[[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]]
197 + Download PG1302_for_Rpi4_64_with_webui from
108 108  
199 + [[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]]
109 109  
201 +
110 110  ==== 4.2 Flash the image to SD card ====
111 111  
112 -Flash the image to SD card:
204 + Flash the image to SD card:
113 113  
206 +(% style="text-align:center" %)
114 114  [[image:1651744119133-233.png||height="373" width="621"]]
115 115  
116 116   Note: Download the flash tool following this link
... ... @@ -120,12 +120,39 @@
120 120  
121 121  ==== 4.3 Access the Linux console ====
122 122  
123 -Connect the RPI Ethernet port to your router, RPi will obtain an IP address from your router. In the router’s management portal, you should be able to find what IP address the router has assigned to the RPI. You can use this IP to connect the WEB UI or SSH access of RPI. Make sure your PC and the RPI is in the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]]) to access it. Below are screenshots
216 +(((
217 +(((
218 +(((
219 + Connect the RPI Ethernet port to your router, RPi will obtain an IP address from your router. In the router’s
220 +)))
124 124  
222 +(((
223 + management portal, you should be able to find what IP address the router has assigned to the RPI. You can
224 +)))
225 +
226 +(((
227 + use this IP to connect the WEB UI or SSH access of RPI.
228 +)))
229 +)))
230 +
231 +(((
232 +(((
233 + Make sure your PC and the RPI is in the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]]) to access it.
234 +)))
235 +
236 +(((
237 + Below are screenshots
238 +)))
239 +)))
240 +)))
241 +
242 +
243 +(% style="text-align:center" %)
125 125  [[image:1651744193675-591.png||height="450" width="466"]]
126 126  
127 -The account details for Web Login are:
128 128  
247 + The account details for Web Login are:
248 +
129 129  **~ User Name: root**
130 130  
131 131  **~ Password:   dragino**
... ... @@ -135,8 +135,10 @@
135 135  
136 136  **~ Pi/dragino**
137 137  
138 -After log in, you will be in the Linux console and type command here.
139 139  
259 + After log in, you will be in the Linux console and type command here.
260 +
261 +(% style="text-align:center" %)
140 140  [[image:1651744358515-107.png||height="366" width="581"]]
141 141  
142 142  
... ... @@ -144,37 +144,48 @@
144 144  
145 145  ===== 4.4.1 Home page =====
146 146  
147 -Open a browser on the PC and type the RPI ip address[[http:~~/~~/IP_ADDRESS** **>>url:http://192.168.1.xx/]] (If the IP is assigned by uplink router)
148 -You will see the login interface of RPI as shown below.
149 -The account details for Web Login are:
269 + Open a browser on the PC and type the RPI ip address
150 150  
151 -(((
271 + [[http:~~/~~/IP_ADDRESS** **>>url:http://192.168.1.xx/]] (If the IP is assigned by uplink router)
272 +
273 + You will see the login interface of RPI as shown below.
274 +
275 + The account details for Web Login are:
276 +
152 152  **~ User Name: root**
278 +
153 153  **~ Password:   dragino**
154 -)))
155 155  
281 +(% style="text-align:center" %)
156 156  [[image:1651744457761-993.png||height="352" width="621"]]
157 157  
158 158  
159 159  ===== 4.4.2 LoRa Page =====
160 160  
161 -This page shows the LoRa Radio Settings. There are a set of default frequency band according to LoRaWAN protocol, and user can customize the band* as well.
287 +(((
288 + This page shows the LoRa Radio Settings. There are a set of default frequency band according to LoRaWAN
289 +)))
162 162  
291 +(((
292 + protocol, and user can customize the band* as well.
293 +)))
294 +
295 +(% style="text-align:center" %)
163 163  [[image:1651744554845-970.png||height="328" width="621"]]
164 164  
165 -Different PG1302 hardware version can support different frequency range:
298 + Different PG1302 hardware version can support different frequency range:
166 166  
167 -➢ 868: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865 or KZ865.
300 + ➢ 868: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865 or KZ865.
168 168  
169 -➢ 915: valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920
302 + ➢ 915: valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920
170 170  
171 -After user choose the frequency plan, he can see the actually frequency in used by checking the
304 + After user choose the frequency plan, he can see the actually frequency in used by checking the
172 172  
173 -page LogRead ~-~-> LoRa Log
306 + page LogRead ~-~-> LoRa Log
174 174  
175 -Note *: See this instruction for how to customize frequency band
308 + Note *: See this instruction for how to customize frequency band
176 176  
177 -[[http:~~/~~/wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway>>url:http://wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway]]
310 + [[http:~~/~~/wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway>>url:http://wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway]]
178 178  
179 179  
180 180  ===== 4.4.3 LoRaWAN Page =====
... ... @@ -181,20 +181,23 @@
181 181  
182 182  ====== 4.4.3.1 Semtech UDP ======
183 183  
317 +
318 +(% style="text-align:center" %)
184 184  [[image:1651744767914-283.png||height="352" width="621"]]
185 185  
186 -Note *: See this instruction for how to configure TTN.
321 + Note *: See this instruction for how to configure TTN.
187 187  
188 -[[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_TTN>>url:https://wiki.dragino.com/index.php?title=Notes_for_TTN||style="background-color: rgb(255, 255, 255);"]]
323 + [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_TTN>>url:https://wiki.dragino.com/index.php?title=Notes_for_TTN||style="background-color: rgb(255, 255, 255);"]]
189 189  
190 190  
191 191  ====== 4.4.3.2 Basic Station ======
192 192  
328 +(% style="text-align:center" %)
193 193  [[image:1651744890629-683.png||height="380" width="621"]]
194 194  
195 -Note *: See this instruction for how to configure TTN.
331 + Note *: See this instruction for how to configure TTN.
196 196  
197 -[[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core>>url:https://wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core]]
333 + [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core>>url:https://wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core]]
198 198  
199 199  
200 200  ===== 4.4.4 LogRead =====
... ... @@ -201,22 +201,26 @@
201 201  
202 202  ====== 4.4.4.1 LoRa Log ======
203 203  
340 +(% style="text-align:center" %)
204 204  [[image:1651744955955-452.png||height="571" width="621"]]
205 205  
206 -Show the frequency for LoRa Radio and traffics.
343 + Show the frequency for LoRa Radio and traffics.
207 207  
208 208  
209 209  ====== 4.4.4.2 System Log ======
210 210  
211 -Show system log.
348 + Show system log.
212 212  
350 +(% style="text-align:center" %)
213 213  [[image:1651745003470-264.png||height="477" width="621"]]
214 214  
215 215  
354 +
216 216  ====== 4.4.4.3 Record Log ======
217 217  
218 -**Record the system log.**
357 +**~ Record the system log.**
219 219  
359 +(% style="text-align:center" %)
220 220  [[image:1651745069814-662.png||height="144" width="621"]]
221 221  
222 222  
... ... @@ -224,7 +224,7 @@
224 224  
225 225  ==== 5.1 OS requirement ====
226 226  
227 -RPI in this example is RPI model 4B with fresh Raspbian OS install.
367 + RPI in this example is RPI model 4B with fresh Raspbian OS install.
228 228  
229 229   pi@raspberrypi:~~$ cat /etc/os-release
230 230  
... ... @@ -249,61 +249,79 @@
249 249  
250 250  ==== 5.2 Get Gateway ID in Raspberry and input this in TTN v3. ====
251 251  
252 -In RPI, run below command to get a Gateway ID
392 + In RPI, run below command to get a Gateway ID
253 253  
254 -(% class="box infomessage" %)
255 -(((
256 - ifconfig eth0
257 -)))
394 + (% class="mark" %)ifconfig eth0
258 258  
396 +(% style="text-align:center" %)
259 259  [[image:1651745210205-512.png||height="130" width="621"]]
260 260  
261 261  (((
262 -We got the ether (eth0 MAC) address is b8:27:eb:49:62:bc). Add ffff at the end and remove “:” to get the gateway ID: b827ebxxxxbcffff.  Input this to TTN v3. Make sure to select legacy packet forwarder.
400 + We got the ether (eth0 MAC) address is b8:27:eb:49:62:bc). Add ffff at the end and remove “:” to get the
263 263  )))
264 264  
403 +(((
404 + gateway ID: b827ebxxxxbcffff.  Input this to TTN v3. Make sure to select legacy packet forwarder.
405 +)))
406 +
407 +(% style="text-align:center" %)
265 265  [[image:1651745267862-321.png||height="526" width="621"]]
266 266  
410 +
411 +
412 +(% style="text-align:center" %)
267 267  [[image:1651745306744-481.png||height="478" width="621"]]
268 268  
269 269  After set up, the status should show not connected as below:
270 270  
417 +(% style="text-align:center" %)
271 271  [[image:1651745366987-458.png||height="363" width="621"]]
272 272  
273 273  
274 274  ===== 5.2.1 Download and install LoRaWAN packet forwarder =====
275 275  
276 -Enable SPI and I2C first:
423 + Enable SPI and I2C first:
277 277  
278 -a)SPI needs to be enabled on the Raspberry Pi
425 + a)SPI needs to be enabled on the Raspberry Pi
279 279  
280 -Run sudo raspi-config to open the config window
427 + Run sudo raspi-config to open the config window
281 281  
429 +(% style="text-align:center" %)
282 282  [[image:1651745476754-240.png||height="235" width="631"]]
283 283  
432 +
433 +(% style="text-align:center" %)
284 284  [[image:image-20220505181135-1.png]]
285 285  
436 +(% style="text-align:center" %)
286 286  [[image:image-20220505181135-2.png]]
287 287  
288 -In RPI , Fist: Enter root account:
289 289  
440 +
441 +
442 + In RPI , Fist: Enter root account:
443 +
444 +(% style="text-align:center" %)
290 290  [[image:1651745583363-614.png]]
291 291  
292 292  
293 -and then run:
448 + and then run:
294 294  
295 -wget [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/auto_install.sh>>url:https://www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/auto_install.sh]]
450 + wget [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/auto_install.sh>>url:https://www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/auto_install.sh]]
296 296  
297 -chmod +x ./auto_install.sh
452 + chmod +x ./auto_install.sh
298 298  
299 -./auto_install.sh
454 + ./auto_install.sh
300 300  
456 +(% style="text-align:center" %)
301 301  [[image:1651745611629-818.png]]
302 302  
303 -This will download the packet forwarder package from Dragino Server to RPI, and start install the package.
304 304  
305 -You can get these output:
460 + This will download the packet forwarder package from Dragino Server to RPI, and start install the package.
306 306  
462 + You can get these output:
463 +
464 +(% style="text-align:center" %)
307 307  [[image:1651745657252-173.png||height="426" width="621"]]
308 308  
309 309  
... ... @@ -310,36 +310,52 @@
310 310  ===== 5.2.2 Config Gateway ID, Frequency Band and Server address =====
311 311  
312 312  (((
313 -After installation, user can find the configuration file in** /etc/lora/ **Replace the gateway ID we got above to the **gateway_ID** in file **local_conf.json.**
471 + After installation, user can find the configuration file in** /etc/lora/ **Replace the gateway ID we got above to the
314 314  )))
315 315  
316 316  (((
317 -The default LoRaWAN server points to localhost, user need to put the correct server address to the server_address field in file **local_conf.json**, like below.
475 +**~ gateway_ID** in file **local_conf.json**
318 318  )))
319 319  
478 +(((
479 + The default LoRaWAN server points to localhost, user need to put the correct server address to the
480 +)))
481 +
482 +(((
483 + server_address field in file **local_conf.json**, like below.
484 +)))
485 +
486 +(% style="text-align:center" %)
320 320  [[image:1651745709709-887.png||height="820" width="621"]]
321 321  
322 -User can find the TTN v3 server address from:
323 323  
324 -[[Server Addresses ~| The Things Stack for LoRaWAN (thethingsindustries.com)>>url:https://www.thethingsindustries.com/docs/getting-started/server-addresses/#deployments]]
490 + User can find the TTN v3 server address from:
325 325  
492 + [[Server Addresses ~| The Things Stack for LoRaWAN (thethingsindustries.com)>>url:https://www.thethingsindustries.com/docs/getting-started/server-addresses/#deployments]]
326 326  
327 -And the default frequency band is US915 in **global_conf.json** file.
328 328  
495 + And the default frequency band is US915 in **global_conf.json** file.
496 +
497 +(% style="text-align:center" %)
329 329  [[image:1651745838008-820.png||height="650" width="621"]]
330 330  
500 +
331 331  * If user want to change to other frequency bands, User can copy the file from **/etc/lora/cfg-302 **and put it into** /etc/lora/global_conf.json.**
332 332  
333 - 1).Chose your need the name of region frequency.
503 + 1).Chose your need the name of region frequency.
334 334  
505 +(% style="text-align:center" %)
335 335  [[image:1651745867516-322.png]]
336 336  
508 +
337 337   2). Use this command to copy it.
338 338  
339 339   cp /etc/lora/cfg-302/EU-global_conf.json /etc/lora/global_conf.json
340 340  
513 +(% style="text-align:center" %)
341 341  [[image:1651745984006-868.png]]
342 342  
516 +
343 343  * If user wants to change to other LoRaWAN server, modify the **global_conf.json** file.
344 344  
345 345  (% class="wikigeneratedid" %)
... ... @@ -350,51 +350,45 @@
350 350  ===== 5.2.3 Check result =====
351 351  
352 352  (((
353 -Run below command to restart the dragino_fwd:
527 + Run below command to restart the dragino_fwd:
354 354  )))
355 355  
356 356  (((
357 -(% class="box infomessage" %)
358 -(((
359 -sudo systemctl stop draginofwd
531 + sudo systemctl stop draginofwd
360 360  )))
361 361  
362 -(% class="box infomessage" %)
363 363  (((
364 -sudo systemctl start draginofwd
535 + sudo systemctl start draginofwd
365 365  )))
366 -)))
367 367  
368 368  (((
369 -debug check the ruing status of fwd:
539 + debug check the ruing status of fwd:
370 370  )))
371 371  
372 372  (((
373 -(% class="box infomessage" %)
374 -(((
375 -sudo systemctl status draginofwd
543 + sudo systemctl status draginofwd
376 376  )))
377 -)))
378 378  
546 +(% style="text-align:center" %)
379 379  [[image:1651746045057-414.png]]
380 380  
381 -The dragino_fwd will start with the new gateway ID and TTN v3 should show the connection ok:
382 382  
550 + The dragino_fwd will start with the new gateway ID and TTN v3 should show the connection ok:
551 +
552 +(% style="text-align:center" %)
383 383  [[image:1651746078253-168.png||height="372" width="621"]]
384 384  
385 385  
386 -We can check dragino_fwd running states in RPi by running:
556 + We can check dragino_fwd running states in RPi by running:
387 387  
388 -(% class="box infomessage" %)
389 -(((
390 - **// sudo journalctl -u draginofwd -f//**
391 -)))
558 + //**sudo journalctl -u draginofwd -f**//
392 392  
560 +(% style="text-align:center" %)
393 393  [[image:1651746111963-838.png]]
394 394  
395 - If there are LoRaWAN nodes transmitting nearby, we can see the traffic in TTN v3 –> Gateway ~-~-> Live data
563 + If there are LoRaWAN nodes transmits nearby, we can see the traffic in TTN v3 –> Gateway ~-~-> Live data
396 396  
397 -
565 +(% style="text-align:center" %)
398 398  [[image:1651746139304-966.png||height="326" width="621"]]
399 399  
400 400  
... ... @@ -408,7 +408,7 @@
408 408  
409 409  === 6. Order Info ===
410 410  
411 -Part Number: **PG1302-XX**  Or  Part Number: **PG1302-PI-XX   **(Include RPi converter board for RPI 3/4)
579 + Part Number: **PG1302-XX**  Or  Part Number: **PG1302-PI-XX   **(Include RPi converter board for RPI 3/4)
412 412  
413 413  **~ XX:**
414 414  
... ... @@ -419,19 +419,18 @@
419 419  === 7. Packing Info ===
420 420  
421 421  (((
422 -**PG1302 Package Includes**:
590 +**~ PG1302 Package Includes**:
423 423  )))
424 424  
425 -(((
426 -* PG1302 x 1
593 +* (((
594 +PG1302 x 1
427 427  )))
428 -
429 -(((
430 -* LoRa Antenna x 1
596 +* (((
597 +LoRa Antenna x 1
431 431  )))
432 432  
433 433  (((
434 -**PG1302-PI Package Includes**:
601 +**~ PG1302-PI Package Includes**:
435 435  )))
436 436  
437 437  * (((
... ... @@ -446,3 +446,17 @@
446 446  * (((
447 447  Screws to hole converter PCB on RPI.
448 448  )))
616 +
617 +=== 8. Reference ===
618 +
619 +* Datasheet, User Manual & Software Download:
620 +
621 + [[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>url:https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]]
622 +
623 +
624 +=== 9. Support ===
625 +
626 +* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
627 +* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
628 +
629 + [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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