<
From version < 108.16 >
edited by Xiaoling
on 2022/08/10 11:44
To version < 101.1 >
edited by Edwin Chen
on 2022/05/25 19:41
>
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Title
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1 -PG1302 - LoRaWAN Concentrator User Manual
1 +PG1302 LoRaWAN Concentrator
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Edwin
Content
... ... @@ -1,9 +1,11 @@
1 1  (% style="text-align:center" %)
2 -[[image:image-20220616085956-1.jpeg||height="609" width="609"]]
2 +[[image:Main.User Manual for All Gateway models.WebHome@pg1302.jpg||height="391" width="549"]]
3 3  
4 4  
5 5  
6 +**PG1302 LoRaWAN Concentrator User Manual**
6 6  
8 +
7 7  **Table of Contents:**
8 8  
9 9  {{toc/}}
... ... @@ -14,28 +14,20 @@
14 14  
15 15  )))
16 16  
17 -= **1. Introduction** =
19 += 1. Introduction =
18 18  
19 -== **1.1 What is PG1302 LoRaWAN Concentrator?** ==
21 +== 1.1 What is PG1302 LoRaWAN Concentrator? ==
20 20  
21 21  
22 -(((
23 23  The PG1302 is a (% style="color:green" %)**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.
24 -)))
25 25  
26 -(((
27 27  The PG1302 is designed to use with Raspberry Pi to build smart metering fixed networks and Internet of Things applications with up to 5000 nodes per km2 in a moderately interfered environment.
28 -)))
29 29  
30 -(((
31 -PG1302 is fully compatible with (% style="color:green" %)**RPi3/4 or Tinker Board**(%%), 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 existing OS.
32 -)))
28 +PG1302 is fully compatible with (% style="color:green" %)RPi3/4 or Tinker Board(%%), 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 existing OS.
33 33  
34 34  
31 +== 1.2 Features ==
35 35  
36 -== **1.2 Features** ==
37 -
38 -
39 39  * Base on Semtech SX1302 solution
40 40  * Support Raspberry Pi 3B/3B+/4
41 41  * Up to -140dBm sensitivity
... ... @@ -43,45 +43,28 @@
43 43  * Mini-PCIe Interface
44 44  * Converter board to support Raspberry Pi
45 45  
40 +== 1.3 General Interfaces ==
46 46  
47 -== **1.3 General Interfaces for PG1302** ==
48 -
49 -
50 50  * SPI interface for LoRa
51 51  * Power Input: 5v, 1A
52 52  * 1 x I-PEX for LoRa
53 53  
46 +== 1.4 Pin Mapping ==
54 54  
55 -== **1.4 Pin Mapping** ==
56 -
57 -
58 58   [[image:1651743282627-547.png||height="402" width="425"]]
59 59  
50 +== 1.5 LEDs ==
60 60  
52 + TX: Blink when transmit a packet
53 + RX: Blink when receive a packet
54 + Config: Always ON
61 61  
62 -== **1.5 LEDs** ==
56 +== 1.6 Power Consumption ==
63 63  
58 + TBD
64 64  
65 -(((
66 -TX: Blink when transmit a packet
67 -RX: Blink when receive a packet
68 -Config: Always ON
69 -)))
60 +== 1.7 Applications ==
70 70  
71 -
72 -
73 -== **1.6 Power Consumption** ==
74 -
75 -
76 -<300mA @ 3.3v.
77 -
78 -Detail Test Report see [[this link>>https://www.dropbox.com/sh/89virm4y0b02c7i/AAA-cgQEsSc8gNGFYAB0qZ_Za?dl=0]]
79 -
80 -
81 -
82 -== **1.7 Applications** ==
83 -
84 -
85 85  * Smart Buildings & Home Automation
86 86  * Logistics and Supply Chain Management
87 87  * Smart Metering
... ... @@ -89,69 +89,48 @@
89 89  * Smart Cities
90 90  * Smart Factory
91 91  
69 += 2. Example: Set up as LoRaWAN gateway. =
92 92  
93 -= **2. Example: Set up as LoRaWAN gateway.** =
71 +== 2.1 System structure ==
94 94  
95 -== **2.1 System structure** ==
96 -
97 -
98 -(((
99 99  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.
100 -)))
101 101  
102 102  [[image:1651743698677-436.png||height="457" width="686"]]
103 103  
77 +== 2.2 Hardware Installation ==
104 104  
105 -
106 -== **2.2 Hardware Installation** ==
107 -
108 -
109 109  (% style="color:red" %)**Important Notice: Please power the RPI with 5V,3A cable.**
110 110  
111 -[[image:image-20220621104746-1.png||height="381" width="451"]]
81 +[[image:1651743803032-803.png]]
112 112  
83 += 3. Install the software? =
113 113  
85 +There are two ways to install software in RPi4 to use PG1302.
114 114  
115 -= **3. Install the software?** =
87 +* Flash SD card with Dragino pre-build image which support Web UI.
88 +* Install lora packet forwarder in existing RPi OS.
116 116  
90 += 4. Flash with pre-build image =
117 117  
118 -There are two ways to install the software in RPi4 to use PG1302.
92 +== 4.1 Download the dragino image for RPI ==
119 119  
120 -* Flash SD card with Dragino pre-build image which supports Web UI.
121 -* Install Lora packet forwarder in existing RPi OS.
94 +Download PG1302_for_Rpi4_64_with_webui from
95 +[[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]]
122 122  
97 +== 4.2 Flash the image to SD card ==
123 123  
124 -= **4. Flash with pre-build image** =
99 +Flash the image to SD card:
125 125  
126 -== **4.1 Download the dragino image for RPI** ==
127 -
128 -
129 -(((
130 -Download PG1302_for_Rpi4_64_with_webui from: [[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]]
131 -)))
132 -
133 -
134 -
135 -== **4.2 Flash the image to an SD card** ==
136 -
137 -
138 -Flash the image to the SD card:
139 -
140 140  [[image:1651744119133-233.png||height="373" width="621"]]
141 141  
103 + Note: Download the flash tool following this link
142 142  
143 -(% style="color:red" %)**Note: Download the flash tool following this link:**[[https:~~/~~/www.balena.io/etcher/>>https://www.balena.io/etcher/]]
105 + [[https:~~/~~/www.balena.io/etcher/>>https://www.balena.io/etcher/]]
144 144  
107 +== 4.3 Access the Linux console ==
145 145  
109 +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
146 146  
147 -== **4.3 Access the Linux console** ==
148 -
149 -
150 -(((
151 -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
152 -)))
153 -
154 -
155 155  [[image:1651744193675-591.png||height="450" width="466"]]
156 156  
157 157  The account details for Web Login are:
... ... @@ -174,41 +174,29 @@
174 174  
175 175  (((
176 176  **~ (% style="color:#0000ff" %)Pi/dragino(%%)**
177 -
178 -
179 179  )))
180 180  
181 -After logging in, you will be in the Linux console and type the command here.
135 +After log in, you will be in the Linux console and type command here.
182 182  
183 183  [[image:1651744358515-107.png||height="366" width="581"]]
184 184  
139 +== 4.4 Access the WebUI of RPi4. ==
185 185  
141 +=== 4.4.1 Home page ===
186 186  
187 -== **4.4 Access the WebUI of RPi4.** ==
188 -
189 -=== **4.4.1 Home page** ===
190 -
191 -
192 -(((
193 -Open a browser on the PC and type the RPI ip address **http:~/~/IP_ADDRESS ** (If the IP is assigned by the uplink router)
143 +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)
194 194  You will see the login interface of RPI as shown below.
195 195  The account details for Web Login are:
196 -)))
197 197  
198 198  (((
199 199  **~ (% style="color:#0000ff" %)User Name: root(%%)**
200 200  (% style="color:#0000ff" %)** Password:   dragino**
201 -
202 -
203 203  )))
204 204  
205 205  [[image:1651744457761-993.png||height="352" width="621"]]
206 206  
154 +=== 4.4.2 LoRa Page ===
207 207  
208 -
209 -=== **4.4.2 LoRa Page** ===
210 -
211 -
212 212  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.
213 213  
214 214  [[image:1651744554845-970.png||height="328" width="621"]]
... ... @@ -215,76 +215,62 @@
215 215  
216 216  Different PG1302 hardware version can support different frequency range:
217 217  
218 -➢** (% style="color:red" %)868: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865 or KZ865.(%%)**
162 +➢ 868: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865 or KZ865.
219 219  
220 -➢ (% style="color:red" %)**915: valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920**
164 +➢ 915: valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920
221 221  
222 -After user choose the frequency plan, he can see the actually frequency in used by checking the (% style="color:#037691" %)**page LogRead ~-~-> LoRa Log**
166 +After user choose the frequency plan, he can see the actually frequency in used by checking the
223 223  
224 -(% style="color:red" %)**Note *: [[See this instruction for how to customize frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]**
168 +page LogRead ~-~-> LoRa Log
225 225  
170 +Note *: [[See this instruction for how to customize frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]
226 226  
227 227  
228 -=== **4.4.3 LoRaWAN Page** ===
173 +=== 4.4.3 LoRaWAN Page ===
229 229  
230 -==== **4.4.3.1 Semtech UDP** ====
175 +==== 4.4.3.1 Semtech UDP ====
231 231  
232 -
233 233  [[image:1651744767914-283.png||height="352" width="621"]]
234 234  
235 -(% style="color:red" %)**Note *: [[See this instruction for how to configure TTN>>doc:Main.Notes for TTN.WebHome]].**
179 +Note *: [[See this instruction for how to configure TTN>>doc:Main.Notes for TTN.WebHome]].
236 236  
237 237  
182 +==== 4.4.3.2 Basic Station ====
238 238  
239 -==== **4.4.3.2 Basic Station** ====
240 -
241 -
242 242  [[image:1651744890629-683.png||height="380" width="621"]]
243 243  
186 +Note *: [[See this instruction for how to configure AWS-loT-Core>>doc:Main.AWS IoT Core for LoRaWAN.WebHome]].
244 244  
245 -(% style="color:red" %)**Note *: [[See this instruction for how to configure AWS-loT-Core>>doc:Main.AWS IoT Core for LoRaWAN.WebHome]].**
246 246  
189 +=== 4.4.4 LogRead ===
247 247  
191 +==== 4.4.4.1 LoRa Log ====
248 248  
249 -=== **4.4.4 LogRead** ===
250 -
251 -==== **4.4.4.1 LoRa Log** ====
252 -
253 -
254 254  [[image:1651744955955-452.png||height="571" width="621"]]
255 255  
256 256  Show the frequency for LoRa Radio and traffics.
257 257  
197 +==== 4.4.4.2 System Log ====
258 258  
259 -
260 -==== **4.4.4.2 System Log** ====
261 -
262 -
263 263  Show system log.
264 264  
265 265  [[image:1651745003470-264.png||height="477" width="621"]]
266 266  
203 +==== 4.4.4.3 Record Log ====
267 267  
268 -
269 -==== **4.4.4.3 Record Log** ====
270 -
271 -
272 272  **Record the system log.**
273 273  
274 274  [[image:1651745069814-662.png||height="144" width="621"]]
275 275  
209 += 5. Install stand alone LoRa Packet Forwarder. =
276 276  
211 +== 5.1 OS requirement ==
277 277  
278 -= **5. Install stand-alone LoRa Packet Forwarder.** =
279 -
280 -== **5.1 OS requirement** ==
281 -
282 -
283 283  RPI in this example is RPI model 4B with fresh Raspbian OS install.
284 284  
285 285  (% class="box" %)
286 286  (((
287 - pi@raspberrypi:~~$ cat /etc/os-release
217 + pi@raspberrypi:~~$ cat /etc/os-release
288 288   PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)"
289 289   NAME="Raspbian GNU/Linux"
290 290   VERSION_ID="8"
... ... @@ -294,30 +294,22 @@
294 294   HOME_URL="http:~/~/www.raspbian.org/"
295 295   SUPPORT_URL="http:~/~/www.raspbian.org/RaspbianForums"
296 296   BUG_REPORT_URL="http:~/~/www.raspbian.org/RaspbianBugs"
297 -
298 -
299 299  )))
300 300  
229 +== 5.2 Get Gateway ID in Raspberry and input this in TTN v3. ==
301 301  
231 +In RPI, run below command to get a Gateway ID
302 302  
303 -== **5.2 Get Gateway ID in Raspberry and input this in TTN v3** ==
304 -
305 -
306 -In RPI, run the below command to get a Gateway ID
307 -
308 308  (% class="box infomessage" %)
309 309  (((
310 -**~ ifconfig eth0**
235 + ifconfig eth0
311 311  )))
312 312  
313 313  [[image:1651745210205-512.png||height="130" width="621"]]
314 314  
315 -
316 316  (((
317 317  (((
318 318  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.
319 -
320 -
321 321  )))
322 322  )))
323 323  
... ... @@ -325,21 +325,17 @@
325 325  
326 326  [[image:1651745306744-481.png||height="478" width="621"]]
327 327  
328 -
329 329  After set up, the status should show not connected as below:
330 330  
331 331  [[image:1651745366987-458.png||height="363" width="621"]]
332 332  
254 +=== 5.2.1 Download and install LoRaWAN packet forwarder ===
333 333  
334 -
335 -=== **5.2.1 Download and install LoRaWAN packet forwarder** ===
336 -
337 -
338 338  Enable SPI and I2C first:
339 339  
340 -a)  SPI needs to be enabled on the Raspberry Pi
258 +a)SPI needs to be enabled on the Raspberry Pi
341 341  
342 -Run (% style="background-color:yellow" %) **sudo raspi-config**(%%) to open the config window
260 +Run (% style="background-color:#dcdcdc" %)**sudo raspi-config**(%%) to open the config window
343 343  
344 344  [[image:1651745476754-240.png||height="234" width="629"]]
345 345  
... ... @@ -347,14 +347,10 @@
347 347  
348 348  [[image:image-20220505181135-2.png||height="229" width="622"]]
349 349  
268 +In RPI , Fist: Enter root account:
350 350  
351 -
352 -In RPI, Fist: Enter the root account:
353 -
354 354  (((
355 355  [[image:1651745583363-614.png||height="151" width="732"]]
356 -
357 -
358 358  )))
359 359  
360 360  and then run:
... ... @@ -375,14 +375,10 @@
375 375  
376 376  (((
377 377  [[image:1651745657252-173.png||height="426" width="621"]]
378 -
379 -
380 -
381 381  )))
382 382  
383 -=== **5.2.2 Config Gateway ID, Frequency Band and Server address** ===
294 +=== 5.2.2 Config Gateway ID, Frequency Band and Server address ===
384 384  
385 -
386 386  (((
387 387  After installation, user can find the configuration file in** (% style="color:#0000ff" %)/etc/lora/ (%%)**Replace the gateway ID we got above to the (% style="color:#0000ff" %)**gateway_ID** (%%)in file (% style="color:#0000ff" %)**local_conf.json.**
388 388  )))
... ... @@ -389,30 +389,26 @@
389 389  
390 390  (((
391 391  The default LoRaWAN server points to localhost, user need to put the correct server address to the server_address field in file (% style="color:#0000ff" %)**local_conf.json**(%%), like below.
392 -
393 -
394 394  )))
395 395  
396 396  [[image:1651745709709-887.png||height="820" width="621"]]
397 397  
306 +User can find the TTN v3 server address from:
398 398  
399 -User can find the TTN v3 server address from: [[Server Addresses ~| The Things Stack for LoRaWAN (thethingsindustries.com)>>url:https://www.thethingsindustries.com/docs/getting-started/server-addresses/#deployments]]
308 +[[Server Addresses ~| The Things Stack for LoRaWAN (thethingsindustries.com)>>url:https://www.thethingsindustries.com/docs/getting-started/server-addresses/#deployments]]
400 400  
401 401  And the default frequency band is US915 in (% style="color:#0000ff" %)**global_conf.json**(%%) file.
402 402  
403 403  [[image:1651745838008-820.png||height="650" width="621"]]
404 404  
405 -
406 406  * If user want to change to other frequency bands, User can copy the file from(% style="color:#0000ff" %)** /etc/lora/cfg-302**(%%) ** **and put it into** (% style="color:#0000ff" %)/etc/lora/global_conf.json(%%).**
407 407  
408 -**~ 1). Chose your need the name of region frequency.**
316 + 1).Chose your need the name of region frequency.
409 409  
410 410  [[image:1651745867516-322.png||height="83" width="740"]]
411 411  
320 + 2). Use this command to copy it.
412 412  
413 -*
414 -** 2). Use this command to copy it.
415 -
416 416   cp /etc/lora/cfg-302/EU-global_conf.json /etc/lora/global_conf.json
417 417  
418 418  [[image:1651745984006-868.png||height="87" width="745"]]
... ... @@ -419,9 +419,8 @@
419 419  
420 420  * If user wants to change to other LoRaWAN server, modify the (% style="color:#0000ff" %)**global_conf.json**(%%) file.
421 421  
422 -=== **5.2.3 Check result** ===
328 +=== 5.2.3 Check result ===
423 423  
424 -
425 425  (((
426 426  Run below command to restart the dragino_fwd:
427 427  )))
... ... @@ -429,16 +429,15 @@
429 429  (((
430 430  (% class="box infomessage" %)
431 431  (((
432 -**sudo systemctl stop draginofwd**
337 +sudo systemctl stop draginofwd
433 433  )))
434 434  
435 435  (% class="box infomessage" %)
436 436  (((
437 -**sudo systemctl start draginofwd**
342 +sudo systemctl start draginofwd
438 438  )))
439 439  )))
440 440  
441 -
442 442  (((
443 443  debug check the ruing status of fwd:
444 444  )))
... ... @@ -446,40 +446,32 @@
446 446  (((
447 447  (% class="box infomessage" %)
448 448  (((
449 -**sudo systemctl status draginofwd**
353 +sudo systemctl status draginofwd
450 450  )))
451 451  )))
452 452  
453 453  [[image:1651746045057-414.png||height="193" width="729"]]
454 454  
455 -
456 -
457 457  The dragino_fwd will start with the new gateway ID and TTN v3 should show the connection ok:
458 458  
459 -
460 460  [[image:1651746078253-168.png||height="372" width="621"]]
461 461  
462 462  
463 -
464 464  We can check dragino_fwd running states in RPi by running:
465 465  
466 466  (% class="box infomessage" %)
467 467  (((
468 -**~ sudo journalctl -u draginofwd -f**
368 + sudo journalctl -u draginofwd -f
469 469  )))
470 470  
471 471  [[image:1651746111963-838.png||height="184" width="730"]]
472 472  
373 + If there are LoRaWAN nodes transmitting nearby, we can see the traffic in **TTN v3 –> Gateway ~-~-> Live data**
473 473  
474 - If there are LoRaWAN nodes transmitting nearby, we can see the traffic in (% style="color:#037691" %)**TTN v3 –> Gateway ~-~-> Live data**
475 -
476 476  [[image:1651746139304-966.png||height="326" width="621"]]
477 477  
377 +=== 5.2.4 Commands to handle service ===
478 478  
479 -
480 -=== **5.2.4 Commands to handle service** ===
481 -
482 -
483 483  * (% style="color:#0000ff" %)**Stop** (%%)dragino_fwd service:  sudo systemctl stop draginofwd
484 484  * (% style="color:#0000ff" %)**Disable**(%%) dragino_fwd auto run after boot: sudo systemctl disable draginofwd
485 485  * (% style="color:#0000ff" %)**Start** (%%)dragino_fwd : sudo systemctl start draginofwd
... ... @@ -486,23 +486,19 @@
486 486  * (% style="color:#0000ff" %)**Auto run**(%%) dragino_fwd after boot:  sudo systemctl enable draginofwd
487 487  * (% style="color:#0000ff" %)**Show status** (%%)of dragino_fwd:  sudo systemctl status draginofwd
488 488  
489 -= **6. Order Info** =
385 += 6. Order Info =
490 490  
491 -
492 492  Part Number: (% style="color:#0000ff" %)**PG1302-XX**   (%%) Or  Part Number: (% style="color:#0000ff" %)**PG1302-PI-XX   **(%%)(Include RPi converter board for RPI 3/4)
493 493  
494 494  **~ (% style="color:#0000ff" %)XX:(%%)**
495 495  
496 -* (% style="color:red" %)**868** (%%)(For Bands: EU868,IN865)
497 -* (% style="color:red" %)**915** (%%)(For Bands: US915,AU915,AS923,KR920)
498 -* (% style="color:red" %)**470** (%%)(For Band: CN470)
391 +* (% style="color:#0000ff" %)**868** (%%)(For Bands: EU868,IN865)
392 +* (% style="color:#0000ff" %)**915** (%%)(For Bands: US915,AU915,AS923,KR920)
393 +* (% style="color:#0000ff" %)**470** (%%)(For Band: CN470)
499 499  
395 += 7. Packing Info =
500 500  
501 -= **7. Packing Info** =
502 -
503 503  (((
504 -
505 -
506 506  **PG1302 Package Includes**:
507 507  )))
508 508  
... ... @@ -514,9 +514,6 @@
514 514  )))
515 515  
516 516  (((
517 -
518 -
519 -
520 520  **PG1302-PI Package Includes**:
521 521  )))
522 522  
... ... @@ -525,18 +525,11 @@
525 525  * RPi3/4 converter PCB
526 526  * Screws to hole converter PCB on RPI.
527 527  
528 -**PG1302-PI Dimension and weight: **
529 -
530 -* Device Size: 18 x 8 x 4 cm
531 -* Weight: 150g
532 -
533 -
534 534  (((
535 -= **8. Support** =
418 += 8. Support =
536 536  
537 -
538 538  (((
539 -If you are experiencing issues and can't solve, you can send mail to
421 +If you are experiencing issues and cant solve, you can send mail to
540 540  )))
541 541  
542 542  (((
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