Version 145.1 by Xiaoye on 2024/02/26 15:48

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1 (% style="text-align:center" %)
2 [[image:image-20220616085956-1.jpeg||height="609" width="609"]]
3
4
5
6
7 **Table of Contents:**
8
9 {{toc/}}
10
11
12 (% class="wikigeneratedid" id="H" %)
13 (((
14
15 )))
16
17 = 1. Introduction =
18
19 == 1.1 What is PG1302 LoRaWAN Concentrator? ==
20
21
22 (((
23 The PG1302 is a (% style="color:blue" %)**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
26 (((
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
30 (((
31 PG1302 is fully compatible with (% style="color:blue" %)**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 )))
33
34
35 == 1.2 Features ==
36
37
38 * Base on Semtech SX1302 solution
39 * Support Raspberry Pi 3B/3B+/4, TinkerBoard2/2S, Orange Pi Pc/PC PLUS.
40 * Up to -140dBm sensitivity
41 * Support 3.3v and 5v.
42 * Mini-PCIe Interface
43 * Converter board to support Raspberry Pi
44
45 == 1.3 General Interfaces for PG1302 ==
46
47
48 * SPI interface for LoRa
49 * Power Input: 5v, 1A
50 * 1 x I-PEX for LoRa
51 * Working Temperature: -40 ℃ ~~ 80℃
52
53 == 1.4 Pin Mapping ==
54
55
56 [[image:image-20240122140551-1.png]]
57
58
59 == 1.5 LEDs ==
60
61
62 (((
63 TX: Blink when transmit a packet
64 RX: Blink when receiving a packet
65 Config: Always ON
66 )))
67
68
69 == 1.6 Power Consumption ==
70
71
72 <300mA @ 3.3v.
73
74 Detail Test Report see [[this link>>https://www.dropbox.com/sh/89virm4y0b02c7i/AAA-cgQEsSc8gNGFYAB0qZ_Za?dl=0]]
75
76
77 == 1.7 Antenna Installation ==
78
79
80 Left:  **GPS antenna**
81
82 Right:  **LoRa Antenna**
83
84 [[image:https://www.thethingsnetwork.org/forum/uploads/default/original/3X/6/2/624619afa8d75a2c21bfd1e3687afaa75ad61cbc.jpeg||alt="PG1302_70"]]
85
86
87
88
89
90 == 1.8 Applications ==
91
92
93 * Smart Buildings & Home Automation
94 * Logistics and Supply Chain Management
95 * Smart Metering
96 * Smart Agriculture
97 * Smart Cities
98 * Smart Factory
99
100
101
102 = 2. Example: Set up as LoRaWAN gateway =
103
104 == 2.1 System structure ==
105
106
107 (((
108 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.
109
110
111 )))
112
113 [[image:1651743698677-436.png||height="457" width="686"]]
114
115
116 == 2.2 Hardware Installation ==
117
118
119 (% style="color:red" %)**Important Notice: Please power the RPI with 5V,3A cable.**
120
121 [[image:image-20220621104746-1.png||height="351" width="415"]]
122
123
124 = 3. Install the software? =
125
126
127 **Raspberry Pi 3B/3B+/4,**
128
129 * Flash SD card with Dragino pre-build image which supports Web UI.
130 * Install [[Dragino-FWD>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20All%20Gateway%20models/PG1302/#H5.2.2.A0Selecttheappropriatedeviceversiontodownload:]] in existing RPi OS.
131
132 **TinkerBoard2/2S, **
133
134 * Install [[Dragino-FWD>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20All%20Gateway%20models/PG1302/#H5.2.2.A0Selecttheappropriatedeviceversiontodownload:]] in the existing OS.
135
136 **Orange Pi PC/PC PLUS.**
137
138 * Install [[Dragino-FWD>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20All%20Gateway%20models/PG1302/#H5.2.2.A0Selecttheappropriatedeviceversiontodownload:]] in the existing OS.
139
140 = 4. Flash with pre-build image =
141
142 == 4.1 Download the dragino image for RPI ==
143
144
145 (((
146 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]]
147 )))
148
149
150 == 4.2 Flash the image to an SD card ==
151
152
153 Flash the image to the SD card:
154
155 [[image:1651744119133-233.png||height="373" width="621"]]
156
157
158 (% style="color:red" %)**Note: Download the flash tool following this link:**[[https:~~/~~/www.balena.io/etcher/>>https://www.balena.io/etcher/]]
159
160
161 == 4.3 Access the Linux console ==
162
163
164 (((
165 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
166 )))
167
168
169 [[image:1651744193675-591.png||height="450" width="466"]]
170
171 The account details for Web Login are:
172
173 (((
174 **~ (% style="color:#0000ff" %)User Name: root(%%)**
175 )))
176
177 (((
178 **~ (% style="color:#0000ff" %)Password:   dragino(%%)**
179 )))
180
181 (((
182
183 )))
184
185 (((
186 **~ (% style="color:#0000ff" %)Backup account(%%)**
187 )))
188
189 (((
190 **~ (% style="color:#0000ff" %)Pi/dragino(%%)**
191
192
193 )))
194
195 After logging in, you will be in the Linux console and type the command here.
196
197 [[image:1651744358515-107.png||height="366" width="581"]]
198
199
200 == 4.4 Access the WebUI of RPi4 ==
201
202 === 4.4.1 Home page ===
203
204
205 (((
206 Open a browser on the PC and type the RPI ip address **http:~/~/IP_ADDRESS ** (If the IP is assigned by the uplink router)
207 You will see the login interface of RPI as shown below.
208 The account details for Web Login are:
209 )))
210
211 (((
212 **~ (% style="color:#0000ff" %)User Name: root(%%)**
213 (% style="color:#0000ff" %)** Password:   dragino**
214
215
216 )))
217
218 [[image:1651744457761-993.png||height="352" width="621"]]
219
220
221 === 4.4.2 LoRa Page ===
222
223
224 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.
225
226
227 [[image:1651744554845-970.png||height="328" width="621"]]
228
229
230 Different PG1302 hardware version can support different frequency range:
231
232 * (% style="color:red" %)**868: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865 or KZ865.**
233 * (% style="color:red" %)**915: valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920**
234
235 After user choose the frequency plan, he can see the actually frequency in used by checking the (% style="color:#037691" %)**page LogRead ~-~-> LoRa Log**
236
237 (% style="color:red" %)**Note *: [[See this instruction for how to customize frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]**
238
239
240 === 4.4.3 LoRaWAN Page ===
241
242 ==== 4.4.3.1 Semtech UDP ====
243
244
245 [[image:1651744767914-283.png||height="352" width="621"]]
246
247
248 (% style="color:red" %)**Note *: [[See this instruction for how to configure TTN>>doc:Main.Notes for TTN.WebHome]].**
249
250
251 ==== 4.4.3.2 Basic Station ====
252
253
254 [[image:1651744890629-683.png||height="380" width="621"]]
255
256
257 (% style="color:red" %)**Note *: [[See this instruction for how to configure AWS-loT-Core>>doc:Main.AWS IoT Core for LoRaWAN.WebHome]].**
258
259
260 === 4.4.4 LogRead ===
261
262 ==== 4.4.4.1 LoRa Log ====
263
264
265 [[image:1651744955955-452.png||height="571" width="621"]]
266
267
268 Show the frequency for LoRa Radio and traffics.
269
270
271 ==== 4.4.4.2 System Log ====
272
273
274 Show system log.
275
276 [[image:1651745003470-264.png||height="477" width="621"]]
277
278
279 ==== 4.4.4.3 Record Log ====
280
281
282 **Record the system log.**
283
284 [[image:1651745069814-662.png||height="144" width="621"]]
285
286
287 = 5. Install stand-alone LoRa Packet Forwarder =
288
289 == 5.1 Choose the right installation package for your OS ==
290
291
292 (((
293 **draginofwd-32bit (RPI, Orange PI)**
294
295 **Download URL:** https:~/~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/draginofwd-32bit.deb
296
297 **Linux Command:** wget https:~/~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/draginofwd-32bit.deb && dpkg -i draginofwd-32bit.deb
298
299
300 **dragino-64bit (RPI, Orange PI)**
301
302 **Download URL: **https:~/~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/draginofwd-64bit.deb
303 )))
304
305 **Linux Command: **wget https:~/~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/draginofwd-64bit.deb && dpkg -i draginofwd-64bit.deb
306
307
308 **dragino-tiker-32bit (Tinker Board)**
309
310 **Download URL: **https:~/~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/draginofwd-tinker-32bit.deb
311
312 **Linux Command: **wget https:~/~/www.dragino.com/downloads/downloads/LoRa_Gateway/PG1302/software/draginofwd-tinker-32bit.deb && dpkg -i draginofwd-tinker-32bit.deb
313
314
315 **Install details:**
316
317 [[image:image-20220928181226-1.png||height="218" width="1100"]]
318
319
320 RPI in this example is RPI model 4B with fresh Raspbian OS install.
321
322 (% class="box" %)
323 (((
324 **~ pi@raspberrypi:~~$ cat /etc/os-release
325 PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)"
326 NAME="Raspbian GNU/Linux"
327 VERSION_ID="8"
328 VERSION="8 (jessie)"
329 ID=raspbian
330 ID_LIKE=debian
331 HOME_URL="http:~/~/www.raspbian.org/"
332 SUPPORT_URL="http:~/~/www.raspbian.org/RaspbianForums"
333 BUG_REPORT_URL="http:~/~/www.raspbian.org/RaspbianBugs"**
334
335
336 )))
337
338
339 == 5.2 Select the mode of connection to the server ==
340
341
342 The Dragino LoRa Packet Forware supports the Semtech UDP and Basic Station mode.
343
344 The User can choose one of the methods as the connection mode.
345
346
347 **~1. Semtech UDP Mode  ~-~-> 5.2.1**
348
349 **2. Basic Station Mode  ~-~-> 5.2.2**
350
351
352 === 5.2.1 Semtech UDP Mode ===
353
354
355 ==== **a). Get a gateway EUI from the device ETH MAC.** ====
356
357
358 In RPI, run the below command to get a Gateway ID
359
360 (% class="box infomessage" %)
361 (((
362 **~ ifconfig eth0**
363 )))
364
365 [[image:1651745210205-512.png||height="130" width="621"]]
366
367
368 (((
369 (((
370 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.
371
372
373
374 ==== **b). Input this Gateway EUI to the TTN-Stack** ====
375
376
377 )))
378 )))
379
380 [[image:1651745267862-321.png||height="526" width="621"]]
381
382 [[image:1651745306744-481.png||height="478" width="621"]]
383
384
385
386 ==== **c). After Register, the status should show not connected as below:** ====
387
388
389 [[image:1651745366987-458.png||height="363" width="621"]]
390
391
392
393 ==== **d). Enable SPI and I2C on your device** ====
394
395
396 **the below example is using Raspberry 4B.**
397
398
399 Run (% style="background-color:yellow" %) **sudo raspi-config**(%%) to open the config window
400
401 [[image:1651745476754-240.png||height="234" width="629"]]
402
403
404 [[image:image-20220505181135-1.png]]
405
406
407 [[image:image-20220505181135-2.png||height="229" width="622"]]
408
409
410
411 ==== **e). Access the root account:** ====
412
413 (((
414 [[image:1651745583363-614.png||height="151" width="732"]]
415
416
417
418 )))
419
420 ==== **f). Modify the configuration of FWD** ====
421
422
423 (((
424 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.**
425 )))
426
427 (((
428 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.
429
430
431 the User can find the lora configuration directory in (% style="color:#0000ff" %)**/etc/lora/**(%%) there are the cfg-302 directory and the global_conf.json, and local_conf.json files.
432
433 /etc/lora/
434 ├── cfg-302  ~-~--> global configuration file
435 ├── devskey  ~-~--> Database
436 ├── global_conf.json  ~-~--> Frequency plan for current applications
437 └── local_conf.json  ~-~--> Local fwd configuration
438
439 At default, the users need to change two configurations file: global_conf.json and local_conf.json.
440
441
442 ===== **1.) Configure gateway EUI and server address, port for fwd** =====
443
444
445 )))
446
447 [[image:1651745709709-887.png||height="820" width="621"]]
448
449
450 **Note: Users 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]]**
451
452
453 ===== **2). Override the global_conf.json file by selecting the appropriate frequency plan for your region in cfg-302** =====
454
455
456 the default frequency band is US915 in the (% style="color:#0000ff" %)**global_conf.json**(%%) file.
457
458 [[image:1651745838008-820.png||height="650" width="621"]]
459
460
461 If the user wants to change to other frequency bands, the 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(%%).**
462
463 **//eg: cp /etc/lora/cfg-302/EU-global_conf.json /etc/lora/global_conf.json //**
464
465
466
467 ====== **Selecting the appropriate frequency plan for your region in cfg-302.** ======
468
469 [[image:1651745867516-322.png||height="83" width="740"]]
470
471
472 ====== **Override the global_conf.json** ======
473
474 (% class="box infomessage" %)
475 (((
476 **cp /etc/lora/cfg-302/EU-global_conf.json /etc/lora/global_conf.json**
477 )))
478
479 [[image:1651745984006-868.png||height="87" width="745"]]
480
481
482 ==== (% style="color:inherit; font-family:inherit; font-size:23px" %)**g). Running the Fwd Server**(%%) ====
483
484
485 (((
486 Run the below command to restart the dragino_fwd:
487 )))
488
489 (((
490 (% class="box infomessage" %)
491 (((
492 **sudo systemctl start draginofwd**
493 )))
494 )))
495
496 (((
497 debug check the ruing status of fwd:
498 )))
499
500 (((
501 (% class="box infomessage" %)
502 (((
503 **sudo systemctl status draginofwd**
504 )))
505 )))
506
507 [[image:1651746045057-414.png||height="193" width="729"]]
508
509
510 Wait for a few minutes, the gateway will be online/active on the TTN-Stack.
511
512 [[image:1651746078253-168.png||height="372" width="621"]]
513
514
515
516 Get the draginofwd real-time running log:
517
518 (% class="box infomessage" %)
519 (((
520 **~ sudo journalctl -u draginofwd -f**
521 )))
522
523 [[image:1651746111963-838.png||height="184" width="730"]]
524
525
526
527 If there are LoRaWAN nodes transmitting nearby, we can see the traffic in (% style="color:#037691" %)**TTN v3 –> Gateway ~-~-> Live data**
528
529 [[image:1651746139304-966.png||height="326" width="621"]]
530
531
532 ==== **h). Commands to handle service** ====
533
534 * (% style="color:#0000ff" %)**Stop** (%%)dragino_fwd service:  sudo systemctl stop draginofwd
535 * (% style="color:#0000ff" %)**Disable**(%%) dragino_fwd auto run after boot: sudo systemctl disable draginofwd
536 * (% style="color:#0000ff" %)**Start** (%%)dragino_fwd : sudo systemctl start draginofwd
537 * (% style="color:#0000ff" %)**Auto run**(%%) dragino_fwd after boot:  sudo systemctl enable draginofwd
538 * (% style="color:#0000ff" %)**Show status** (%%)of dragino_fwd:  sudo systemctl status draginofwd
539
540 === 5.2.2 Basic Station Mode. ===
541
542
543 ==== **a). Get a gateway EUI from the device ETH MAC.** ====
544
545
546 In RPI, run the below command to get a Gateway EUI
547
548 (% class="box infomessage" %)
549 (((
550 **~ ifconfig eth0**
551 )))
552
553 [[image:1651745210205-512.png||height="130" width="621"]]
554
555
556 (((
557 (((
558 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.
559 )))
560 )))
561
562
563
564 ==== **b). Register the gateway with the Basic Station Mode on the TTN-Stack** ====
565
566
567 [[image:image-20230329164417-5.png]]
568
569
570
571 ==== **c). Download the gateway API keys, and then upload them to the gateway.** ====
572
573
574 [[image:image-20230329164704-6.png]]
575
576
577 ==== **d). The status Shows disconnect.** ====
578
579
580 [[image:image-20230329165619-7.png||height="568" width="948"]]
581
582
583 ==== **e.) Uploda API keys into the gateway** ====
584
585
586 the User can find the Basic Station configuration directory in (% style="color:#0000ff" %)**/etc/station/**(%%) there is the station.conf files, and ttnstack directory.
587
588 //**directory tree:**//
589
590 ///etc/station/
591 ├── station.conf 
592 └── ttnstack  ~-~--> ** ttnstack configuration file directory**
593 ├── cups.trust  ~-~-->  ttnstack auth file
594 ├── cups.uri  ~-~-->  ttnstack server URI file
595 └── station.conf  ~-~-~-~-> backup configuration file//
596
597
598
599 **and then upload the downloaded keys to this directory((% style="color:#0000ff" %)/etc/station/(%%))**
600
601 eg:
602
603 /etc/station/
604 ├── cups.key  ~-~--> uploaded by you
605 ├── lns.key  ~-~--> uploaded by you
606 ├── station.conf
607
608
609 ==== **f). Configure gateway EUI and server address** ====
610
611
612 [[image:image-20230329195650-10.png]]
613
614
615 After the user enters the correct parameters, the server will be run automatically
616
617
618 Tree Directory:
619
620 /etc/station/
621 ├── cups.key
622 ├── cups.trust
623 ├── cups.uri
624 ├── lns.key
625 ├── start-configure.sh
626 ├── station.conf
627 └── ttnstack
628 ├── cups.trust
629 ├── cups.uri
630 └── station.conf
631
632
633 ==== **g). Check station running log** ====
634
635
636 tail -f /var/log/station.log
637
638
639 [[image:image-20230329201624-11.png]]
640
641
642
643 = 6. Add GPS support in PG1302 =
644
645 The PG1302 supports GPS:
646
647 [[image:image-20240118160132-1.png||height="270" width="338"]]
648
649
650 * **The users can find the GPS device in Raspberry: /dev/ttyS0 or /dev/ttyAMA0**
651
652 [[image:image-20240118160407-2.png||height="71" width="458"]]
653
654
655 * **Check the GPS output: cat /dev/ttyS0**
656
657 [[image:image-20240118160454-3.png]]
658
659
660 * **Add the GPS to the Semtech UDP package forwarder configuration.**
661
662 [[image:image-20240118160928-4.png||height="426" width="464"]]
663
664
665 * **Test GPS function**
666
667 **~ 1.) Stop IoT service: systemctl stop draginofwd**
668
669
670 **~ 2.) Run the fwd command and check the output**
671
672
673 [[image:image-20240118161109-5.png]]
674
675
676 **~ 3.) Trouble Shooting:**
677
678 If you get many WARNING outputs, which should be the GPS location is invalid, you need to adjust the GPS location, it is recommended to put it outdoors
679
680
681 [[image:image-20240118161333-6.png]]
682
683
684 The user can check the PG1302 board GPS LED status to check the location,
685
686 GPS location is valid  ~-~--> GPS LED will light up
687
688 GPS location is invalid ~-~--> GPS LED will light down
689
690
691 [[image:image-20240118162033-7.png]]
692
693
694
695 = 7. Trouble Shooting =
696
697 (% class="wikigeneratedid" %)
698 7.1 Failed to start the concentrator how to debug
699
700
701 --When the problem "failed to start the concentrator" occurs, the user needs to check whether the I2C and SPI are enabled,--
702
703 --Users can enter the following command to check whether I2C is detected, and the detection of **"60"** is correct.--
704
705 (% class="box infomessage" %)
706 (((
707 --**i2cdetect -y 1**--
708 )))
709
710 **Note: This method has been removed because the i2c had been removed on the latest PG1302.**
711
712
713
714 Check whether the SPI path of the configuration file is correct,
715
716 (% class="box infomessage" %)
717 (((
718 **cat /etc/lora/global_conf.json **
719 )))
720
721 (% class="wikigeneratedid" %)
722 [[image:image-20230518092732-2.png||height="378" width="691"]]
723
724
725
726 = 8. Order Info =
727
728
729 Part Number: (% style="color:#0000ff" %)**PG1302-XX**   (%%) Or  Part Number: (% style="color:#0000ff" %)**PG1302-PI-XX   **(%%)(Include RPi converter board for RPI 3/4)
730
731 **~ (% style="color:#0000ff" %)XX:(%%)**
732
733 * (% style="color:red" %)**868** (%%)(For Bands: EU868,IN865)
734 * (% style="color:red" %)**915** (%%)(For Bands: US915,AU915,AS923,KR920)
735 * (% style="color:red" %)**470** (%%)(For Band: CN470)
736
737 = 9. Packing Info =
738
739
740 (((
741 **PG1302 Package Includes**:
742 )))
743
744 (((
745 * PG1302 x 1
746 * LoRa Antenna x 1
747 )))
748
749
750
751 (((
752 **PG1302-PI Package Includes**:
753 )))
754
755 * PG1302 x 1
756 * LoRa Antenna x 1
757 * RPi3/4 converter PCB
758 * Screws to hole converter PCB on RPI.
759
760 **PG1302-PI Dimension and weight: **
761
762 * Device Size: 18 x 8 x 4 cm
763 * Weight: 150g
764
765 = 10. Support =
766
767
768 (((
769 If you are experiencing issues and can't solve, you can send mail to [[support@dragino.com>>mailto:support@dragino.com]].
770 )))
771
772 (((
773 With your question as detail as possible. We will reply and help you in the shortest.
774 )))