<
From version < 164.1 >
edited by Xiaoling
on 2022/08/26 09:15
To version < 156.5 >
edited by Xiaoling
on 2022/07/07 10:10
>
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Summary

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Content
... ... @@ -6,7 +6,6 @@
6 6  
7 7  **Table of Contents:**
8 8  
9 -{{toc/}}
10 10  
11 11  
12 12  
... ... @@ -13,9 +13,14 @@
13 13  
14 14  
15 15  
16 -= 1.  Introduction =
17 17  
18 18  
17 +
18 +
19 +
20 +
21 +(% style="color:inherit; font-family:inherit; font-size:29px" %)1.  Introduction
22 +
19 19  == 1.1  What is the LPS8N ==
20 20  
21 21  
... ... @@ -43,7 +43,6 @@
43 43  [[image:1656918270059-192.png]]
44 44  
45 45  
46 -
47 47  == 1.2  Specifications ==
48 48  
49 49  
... ... @@ -100,11 +100,8 @@
100 100  * Worldwide LTE,UMTS/HSPA+ and GSM/GPRS/EDGE coverage
101 101  * MIMO technology meets demands for data rate and link reliability in modem wireless communication systems
102 102  
103 -
104 -
105 105  == 1.3  Features ==
106 106  
107 -
108 108  * Open Source OpenWrt system
109 109  * Managed by Web GUI, SSH via WAN or WiFi
110 110  * Remote access with Reverse-SSH or remote.it
... ... @@ -119,22 +119,16 @@
119 119  * Support LoRaWAN basic station.
120 120  * Optional 3G/4G cellular connection
121 121  
122 -
123 -
124 124  == 1.4  Hardware System Structure ==
125 125  
126 -
127 127  [[image:1657079015096-949.png]]
128 128  
129 129  
130 -
131 131  == 1.5  LPS8N Applications ==
132 132  
133 -
134 134  [[image:1657079055940-721.png]]
135 135  
136 136  
137 -
138 138  == 1.6  LED Indicators ==
139 139  
140 140  
... ... @@ -141,7 +141,7 @@
141 141  LPS8N has totally four LEDs, They are:
142 142  
143 143  * **Power LED **[[image:image-20220706115518-1.png||height="15" width="16"]] : This (% style="color:red" %)**RED LED**(%%) will be **solid on** if the device is properly powered.
144 -* **Wireless LED** [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/LG308N%20-%20LoRaWAN%20Gateway%20User%20Manual/WebHome/image-20220705165446-6.png?width=15&height=15&rev=1.1||alt="image-20220705165446-6.png" height="15" width="15"]]: No function yet.
138 +* **LoRa LED   **[[image:image-20220706115518-2.png||height="15" width="15"]] : This **RGB LED** will** (% style="color:green" %)blink GREEN(%%)** when LoRaWAN module starts or transmit a packet.
145 145  * **SYS LED    ** [[image:image-20220706115518-3.png||height="16" width="16"]] : This **RGB LED** will shows different colors on different state:
146 146  ** (% style="color:blue" %)**SOLID BLUE**(%%): Device is alive with LoRaWAN server connection.
147 147  ** (% style="color:blue" %)**BLINKING BLUE**(%%): a) Device has internet connection but no LoRaWAN Connection.  or  b) Device is in booting stage, in this stage, it will (% style="color:blue" %)**BLINKING BLUE**(%%) for several seconds and then with (% style="color:red" %)**SOLID RED**(%%) and (% style="color:blue" %)**BLINKING BLUE**(%%) together
... ... @@ -149,29 +149,22 @@
149 149  
150 150  * **ETH LED    **[[image:image-20220706115518-4.png||height="15" width="17"]] :  This LED shows the ETH interface connection status.
151 151  
152 -
153 -
154 154  = 2.  Access and Configure LPS8N =
155 155  
156 -
157 157  (((
158 158  The LPS8N is configured as a WiFi Access Point by factory default. You can access and configure the LPS8N after connecting to its WiFi network, or via its WAN Ethernet port.
159 159  )))
160 160  
161 161  
162 -
163 163  == 2.1  Find IP address of LPS8N ==
164 164  
165 -
166 166  === 2.1.1  Connect via WiFi ===
167 167  
168 -
169 169  [[image:1657085974260-168.png]]
170 170  
171 171  
172 172  At the first boot of LPS8N, it will auto generate a WiFi network called (% style="color:green" %)**//dragino-xxxxxx //**(% style="color:black" %)with password: (% style="background-color:yellow" %)dragino+dragino
173 173  
174 -
175 175  [[image:1652413127647-377.png]]
176 176  
177 177  
... ... @@ -184,12 +184,11 @@
184 184  
185 185  === 2.1.2  Connect via Ethernet with DHCP IP from router ===
186 186  
187 -
188 188  [[image:1657086105922-299.png]]
189 189  
190 190  
191 191  (((
192 -Alternatively, connect the LPS8N Ethernet port to your router and LPS8N 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 LPS8N. You can also use this IP to connect.
178 +Alternatively, connect the LPS8N Ethernet port to your router and DLOS8N 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 LPS8N. You can also use this IP to connect.
193 193  
194 194  
195 195  
... ... @@ -197,7 +197,6 @@
197 197  
198 198  === 2.1.3  Connect via WiFi with DHCP IP from router ===
199 199  
200 -
201 201  [[image:1657086192720-649.png]]
202 202  
203 203  
... ... @@ -207,7 +207,6 @@
207 207  
208 208  === 2.1.4  Connect via Ethernet with fall back ip ===
209 209  
210 -
211 211  The WAN port also has a [[fall back ip address>>||anchor="H10.3A0IconfiguredLPS8NforWiFiaccessandlostitsIP.Whattodonow3F"]] for access if user doesn't connect to uplink router. Click [[here>>||anchor="H10.3A0IconfiguredLPS8NforWiFiaccessandlostitsIP.Whattodonow3F"]] to see how to configure.
212 212  
213 213  
... ... @@ -214,7 +214,6 @@
214 214  
215 215  == 2.2  Access Configure Web UI ==
216 216  
217 -
218 218  **Web Interface**
219 219  
220 220  Open a browser on the PC and type the LPS8N ip address (depends on your connect method)
... ... @@ -240,10 +240,8 @@
240 240  
241 241  = 3.  Typical Network Setup =
242 242  
243 -
244 244  == 3.1  Overview ==
245 245  
246 -
247 247  The LPS8N supports flexible network set up for different environments. This section describes the typical network topology. The network set up includes:
248 248  
249 249  * **WAN Port Internet Mode**
... ... @@ -250,11 +250,8 @@
250 250  * **WiFi Client Mode**
251 251  * **WiFi AP Mode**
252 252  
253 -
254 -
255 255  == 3.2  Use WAN port to access Internet ==
256 256  
257 -
258 258  By default, the LPS8N is set to use the WAN port to connect to an upstream network. When you connect the LPS8N's WAN port to an upstream router, LPS8N will get an IP address from the router and have Internet access via the upstream router. The network status can be checked in the (% style="color:#4f81bd" %)**home page**:
259 259  
260 260  
... ... @@ -261,16 +261,13 @@
261 261  [[image:1657088560833-398.png]]
262 262  
263 263  
264 -
265 265  == 3.3  Access the Internet as a WiFi Client ==
266 266  
244 +In the WiFi Client Mode, DLOS8N acts as a WiFi client and gets DHCP from an upstream router via WiFi.
267 267  
268 -In the WiFi Client Mode, LPS8N acts as a WiFi client and gets DHCP from an upstream router via WiFi.
269 -
270 270  (((
271 271  The settings for WiFi Client is under page (% style="color:#4f81bd" %)**System~-~-> WiFi ~-~-> WiFi WAN Client Settings**
272 272  
273 -
274 274  [[image:1657088818095-182.png]]
275 275  )))
276 276  
... ... @@ -278,13 +278,11 @@
278 278  (((
279 279  In the WiFi Survey Choose the WiFi AP, and input the Passphrase then click Save & Apply to connect.
280 280  
281 -
282 282  
283 283  )))
284 284  
285 285  == 3.4  Use built-in 4G modem for internet access ==
286 286  
287 -
288 288  (((
289 289  (((
290 290  If the LPS8N has 3G/4G Cellular modem, user can use it as main internet connection or back up.
... ... @@ -313,8 +313,6 @@
313 313  
314 314  (((
315 315  While use the cellular as Backup WAN, device will use Cellular for internet connection while WAN port or WiFi is not valid and switch back to WAN port or WiFi after they recover.
316 -
317 -
318 318  )))
319 319  
320 320  (((
... ... @@ -322,10 +322,8 @@
322 322  )))
323 323  
324 324  
325 -
326 326  == 3.5  Check Internet connection ==
327 327  
328 -
329 329  In the (% style="color:#4f81bd" %)**home**(%%) page, we can check the Internet connection.
330 330  
331 331  * GREEN Tick ​​​​ [[image:1652436675869-206.png||height="14" width="15"]] : This interface has Internet connection.
... ... @@ -338,16 +338,14 @@
338 338  
339 339  = 4.  Example: Configure as a LoRaWAN gateway =
340 340  
341 -
342 342  LPS8N is fully compatible with LoRaWAN protocol. It uses the legacy Semtech Packet forwarder to forward the LoRaWAN packets to server. The structure is as below.
343 343  
344 -
345 345  (((
346 346  [[image:1657091257648-882.png]]
347 347  )))
348 348  
349 349  (((
350 -This chapter describes how to use the LPS8N to work with (TTN v3)[[ LoRaWAN Server>>url:https://www.thethingsnetwork.org/]]  ([[www.thethingsnetwork.org>>url:http://www.thethingsnetwork.org/]])
317 +This chapter describes how to use the DLOS8Nto work with (TTN v3)[[ LoRaWAN Server>>url:https://www.thethingsnetwork.org/]]  ([[www.thethingsnetwork.org>>url:http://www.thethingsnetwork.org/]])
351 351  )))
352 352  
353 353  
... ... @@ -354,43 +354,30 @@
354 354  
355 355  == 4.1  Create a gateway in TTN V3 Server ==
356 356  
324 +(% style="color:#4f81bd" %)**Step 1: Get a Unique gateway ID.**
357 357  
358 -(% style="color:blue" %)**Step 1: Get a Unique gateway ID.**
359 -
360 -
361 361  (((
362 362  Every LPS8N has a unique gateway id. The ID can be found at LoRaWAN page:
363 -
364 -
365 365  )))
366 366  
367 367  (((
368 368  [[image:1657091583941-544.png]]
369 -
370 -
371 371  )))
372 372  
373 373  The example gateway id is: (% style="color:green" %)**a840411e96744154**
374 374  
375 375  
337 +(% style="color:#4f81bd" %)**Step 2: Sign up a user account in TTN server**
376 376  
377 -(% style="color:blue" %)**Step 2: Sign up a user account in TTN server**
378 -
379 -
380 380  [[**https:~~/~~/account.thethingsnetwork.org/register**>>url:https://account.thethingsnetwork.org/register]]
381 381  
382 -
383 383  [[image:1657091739530-531.png]]
384 384  
385 385  
344 +(% style="color:#4f81bd" %)**Step 3: Choose the TTNv3 Cluster Picker**
386 386  
387 -(% style="color:blue" %)**Step 3: Choose the TTNv3 Cluster Picker**
388 -
389 -
390 390  (((
391 391  [[image:1657091719947-297.png]]
392 -
393 -
394 394  )))
395 395  
396 396  (% style="color:red" %)**Note: Choose the cluster corresponds to a specific Gateway server address**
... ... @@ -401,11 +401,8 @@
401 401  * Australia 1 (% style="color:red" %)**corresponding Gateway server address: **(% style="color:black" %)au1.cloud.thethings.network
402 402  * Legacy V2 Console : (% style="color:red" %)**TTN v2 shuts down in December 2021**
403 403  
358 +(% style="color:#4f81bd" %)**Step 4: Create a Gateway**
404 404  
405 -
406 -(% style="color:blue" %)**Step 4: Create a Gateway**
407 -
408 -
409 409  [[image:1657091941182-367.png]]
410 410  
411 411  Click the Gateway icon and then click Add gateway.
... ... @@ -421,9 +421,7 @@
421 421  
422 422  
423 423  (((
424 -(% style="color:red" %)**Notice: Gateway Server address must match the gateway configuration, otherwise you will have problem for End Node to join the network.**
425 -
426 -
375 +(% style="color:red" %)**Notice: **Gateway Server address must match the gateway configuration, otherwise you will have problem for End Node to join the network.
427 427  )))
428 428  
429 429  After creating the gateway, you can see the gateway info, as below.
... ... @@ -431,10 +431,8 @@
431 431  [[image:1657094130908-567.png]](% style="display:none" %)
432 432  
433 433  
383 +== 4.2  Configure DLOS8N to connect to TTN v3 ==
434 434  
435 -== 4.2  Configure LPS8N to connect to TTN v3 ==
436 -
437 -
438 438  (((
439 439  You can now configure the LPS8N to let it connect to TTN network V3.
440 440  )))
... ... @@ -444,49 +444,38 @@
444 444  )))
445 445  
446 446  (((
447 -Choose the right server provider and click (% style="color:#4f81bd" %)**Save&Apply.**
448 -
449 -
394 +Choose the right server provider and click (% style="color:#4f81bd" %)**Save&Apply**
450 450  )))
451 451  
452 452  [[image:1657094183213-301.png]]
453 453  
399 +(% style="color:red" %)**Note: **The server address must match the Gateway server address you choose in TTN V3.
454 454  
455 -(% style="color:red" %)**Note: The server address must match the Gateway server address you choose in TTN V3.**
456 456  
457 -
458 458  In the home page, we can see the LoRaWAN connection is ready now.
459 459  
460 -
461 461  [[image:1657094202420-798.png]]
462 462  
463 463  
464 -
465 465  In TTN v3 portal, we can also see the gateway is connected.
466 466  
467 467  [[image:1657094221515-510.png]]
468 468  
469 469  
470 -
471 471  == 4.3  Configure frequency ==
472 472  
473 -
474 474  We also need to set the frequency plan in LPS8N to match the end node we use, so to receive the LoRaWAN packets from the LoRaWAN sensor.
475 475  
476 -
477 477  [[image:1657094249818-468.png]]
478 478  
479 479  
480 -
481 481  In logread page, user can check the frequency actually used.
482 482  
483 483   [[image:1657094333704-207.png]]
484 484  
485 485  
486 -
487 487  == 4.4  Add a LoRaWAN End Device ==
488 488  
489 -
490 490  (((
491 491  This section shows how to add a LoRaWAN End device to a LoRaWAN network and see the data from TTN web site.
492 492  )))
... ... @@ -497,9 +497,8 @@
497 497  
498 498  [[image:1652422794767-871.png]]
499 499  
500 -
501 501  (((
502 -(% style="color:blue" %)**Step 1**: (%%)Create a Device definition in TTN v3 with the OTAA keys from the example LT-22222-L IO Controller device.
437 +(% style="color:#4f81bd" %)**Step 1**: (% style="color:black" %)Create a Device definition in TTN v3 with the OTAA keys from the example LT-22222-L IO Controller device.
503 503  
504 504  
505 505  )))
... ... @@ -514,15 +514,12 @@
514 514  
515 515  (((
516 516  A set of these codes are stored in each device by the manufacturer as the default codes for that particular device. Each device is shipped with a sticker with the default Device EUI as shown below.
517 -
518 -
519 519  )))
520 520  
521 521  [[image:1657094382177-591.png]]
522 522  
523 -
524 524  (((
525 -(% style="color:red" %)**Note: You may be able to change these codes in a device by using a configuration facility on the device e.g. the LT-22222 uses a serial port access and a series of AT commands.  Changing the codes may be necessary in the case where you have to use codes assigned by a LoRa WAN server.**
457 +(% style="color:red" %)Note: You may be able to change these codes in a device by using a configuration facility on the device e.g. the LT-22222 uses a serial port access and a series of AT commands.  Changing the codes may be necessary in the case where you have to use codes assigned by a LoRa WAN server.
526 526  
527 527  
528 528  )))
... ... @@ -533,8 +533,6 @@
533 533  
534 534  (((
535 535  Select **Add Application** to open the screen below.
536 -
537 -
538 538  )))
539 539  
540 540  [[image:1657094417175-831.png]]
... ... @@ -575,40 +575,29 @@
575 575  )))
576 576  
577 577  (((
578 -(% style="color:blue" %)**Step 2**:  (%%)Power on LT-22222-L device and it will automatically join the TTN network. After joining successfully, it will start to upload messages to the TTN v3. Select the Live data tab and you will see the data appearing in the panel.
579 -
580 -
508 +(% style="color:#4f81bd" %)**Step 2**: (% style="color:black" %)Power on LT-22222-L device and it will automatically join the TTN network. After joining successfully, it will start to upload messages to the TTN v3. Select the Live data tab and you will see the data appearing in the panel.
581 581  )))
582 582  
583 583  (((
584 -(% style="color:red" %)**Note that it may take some time for the device data to appear in the TTN v3 display.**
585 -
586 -
512 +(% style="color:red" %)Note that it may take some time for the device data to appear in the TTN v3 display.
587 587  )))
588 588  
589 589  [[image:1657094791060-639.png]]
590 590  
591 591  
592 -
593 593  = 5.  Web Configure Pages =
594 594  
595 -
596 596  == 5.1  Home ==
597 597  
598 -
599 599  Shows the system running status.
600 600  
601 -
602 602  [[image:1657094893942-726.png]]
603 603  
604 604  
605 -
606 606  == 5.2  LoRa Settings ==
607 607  
608 -
609 609  === 5.2.1  LoRa ~-~-> LoRa ===
610 610  
611 -
612 612  (((
613 613  This page shows the LoRa Radio Settings. There are a set of default frequency band according to LoRaWAN protocol, and user can customized the band* as well.
614 614  )))
... ... @@ -623,22 +623,16 @@
623 623  (((
624 624  
625 625  
626 -(((
627 627  After user choose the frequency plan, he can see the actually frequency in used by checking the page (% style="color:green" %)**LogRead ~-~-> LoRa Log**
628 -
629 -
630 630  )))
631 -)))
632 632  
633 633  [[image:1657094930903-357.png]]
634 634  
635 -(% style="color:red" %)**Note *:** **[[See this instruction for how to customize frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]**
550 +Note *: **[[See this instruction for how to customize frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]**
636 636  
637 637  
553 +=== 5.2.2 LoRa ~-~-> ABP Decryption ===
638 638  
639 -=== 5.2.2  LoRa ~-~-> ABP Decryption ===
640 -
641 -
642 642  The LPS8N can communicate with LoRaWAN ABP End Node without the need of LoRaWAN server. It can be used in some cases such as:
643 643  
644 644  * No internet connection.
... ... @@ -646,26 +646,19 @@
646 646  
647 647  (((
648 648  Detail of this feature: **[[Communication with ABP End Node>>doc:Main.Communicate with ABP End Node without LoRaWAN Network Server --- LG308.WebHome]]**
649 -
650 -
651 651  )))
652 652  
653 653  [[image:1657095412271-942.png]]
654 654  
655 655  
656 -
657 657  == 5.3  LoRaWAN Settings ==
658 658  
659 -
660 660  === 5.3.1  LoRaWAN ~-~-> LoRaWAN ===
661 661  
571 +This page is for the connection set up to a general LoRaWAN Network server such as: [[TTN>>url:http://www.thethingsnetwork.org/]], [[ChirpStack>>url:https://www.chirpstack.io/]] etc
662 662  
663 -This page is for the connection set up to a general LoRaWAN Network server such as: [[TTN>>url:http://www.thethingsnetwork.org/]], [[ChirpStack>>url:https://www.chirpstack.io/]] etc.
664 -
665 -
666 666  [[image:1652423628833-467.png||height="357" width="755"]]
667 667  
668 -
669 669  (% style="color:red" %)**Note:**
670 670  
671 671  ~*: User can ignore the latitude and longitude settings here, LPS8N will use the actually value from GPS module.
... ... @@ -675,23 +675,18 @@
675 675  **See:** **[[Filter unwanted LoRaWAN packets>>doc:Main.Filter unwanted LoRaWAN packets.WebHome]]**
676 676  
677 677  
678 -
679 679  === 5.3.2  LoRaWAN ~-~-> Amazon AWS-IoT ===
680 680  
681 -
682 682  [[image:1652428499323-384.png||height="275" width="723"]]
683 683  
684 -
685 685  (((
686 686  Please see this instruction to know more detail and demo for how to connect to **[[AWS-IoT LoRaWAN Core>>doc:Main.AWS IoT Core for LoRaWAN.WebHome]].**
687 687  
688 -
689 689  
690 690  )))
691 691  
692 692  === 5.3.3  LoRaWAN ~-~-> LORIOT ===
693 693  
694 -
695 695  (((
696 696  Settings to communicate to LORIOT LoRaWAN Network Server: [[https:~~/~~/www.loriot.io/>>url:https://www.loriot.io/]]
697 697  )))
... ... @@ -698,39 +698,27 @@
698 698  
699 699  (((
700 700  Instruction: **[[Notes for LORIOT>>doc:Main.Notes for LORIOT.WebHome]]**
701 -
702 -
703 703  )))
704 704  
705 705  [[image:1652428648903-878.png||height="266" width="731"]]
706 706  
707 707  
708 -
709 709  == 5.4  MQTT Settings ==
710 710  
711 -
712 -(((
713 713  If end nodes works in ABP mode, user can configure LPS8N to transfer the data to MQTT broker,
714 -)))
715 715  
716 -(((
717 717  Instruction: **[[MQTT Forward Instruction>>doc:Main.MQTT Forward Instruction.WebHome]]**
718 -)))
719 719  
720 720  
721 721  [[image:1652428705046-212.png||height="417" width="733"]]
722 722  
723 723  
724 -
725 725  == 5.5  System ==
726 726  
727 -
728 728  === 5.5.1  System ~-~-> System Overview ===
729 729  
730 -
731 731  Shows the system info:
732 732  
733 -
734 734  [[image:1657155158184-134.png]]
735 735  
736 736  
... ... @@ -737,16 +737,14 @@
737 737  
738 738  === 5.5.2  System ~-~-> General ( login settings) ===
739 739  
740 -
741 741  [[image:1657155183982-792.png]]
742 742  
743 -
744 744  (((
745 -(% style="color:#037691" %)**__System Password:__**
632 +**__System Password:__**
746 746  )))
747 747  
748 748  (((
749 -There are two login for LPS8N: (% style="color:blue" %)**root /dragino** (%%)or (% style="color:blue" %)**admin /dragino**. (%%)Both root and admin has the same right for WEB access. But root user has also the right to access via SSH to Linux system. admin only able to access WEB interface.
636 +There are two login for LPS8N: (% style="color:#4f81bd" %)root /dragino (% style="color:black" %)or (% style="color:#4f81bd" %)admin /dragino. (% style="color:black" %)Both root and admin has the same right for WEB access. But root user has also the right to access via SSH to Linux system. admin only able to access WEB interface.
750 750  )))
751 751  
752 752  (((
... ... @@ -754,11 +754,11 @@
754 754  )))
755 755  
756 756  (((
757 -(% style="color:#037691" %)**__Timezone:  __**(%%)Set device timezone.
644 +**__Timezone:  __**Set device timezone.
758 758  )))
759 759  
760 760  (((
761 -(% style="color:#037691" %)**__Port forwarding:  __**(%%)Enable/Disable the HTTP and SSH access via WAN interface.
648 +**__Port forwarding:  __**Enable/Disable the HTTP and SSH access via WAN interface.
762 762  
763 763  
764 764  
... ... @@ -766,20 +766,18 @@
766 766  
767 767  === 5.5.3  System ~-~-> Network ===
768 768  
769 -
770 770  [[image:1657155288223-566.png]]
771 771  
772 -
773 773  (((
774 -(% style="color:#037691" %)**__LAN Settings:    __**(%%)When the LPS8N has the AP enable, LAN settings specify the network info for LPS8N's own network.
659 +**__LAN Settings:    __**When the LPS8N has the AP enable, LAN settings specify the network info for LPS8N's own network.
775 775  )))
776 776  
777 777  (((
778 -(% style="color:#037691" %)__**WAN Settings:  **__(%%)Setting for LPS8N WAN port
663 +__**WAN Settings:  **__Setting for LPS8N WAN port
779 779  )))
780 780  
781 781  (((
782 -(% style="color:#037691" %)__**WiFi Settings:  **__** **(%%)Setting for LPS8N WiFi IP when use it as WiFi Client
667 +__**WiFi Settings:   **__Setting for LPS8N WiFi IP when use it as WiFi Client
783 783  
784 784  
785 785  
... ... @@ -787,10 +787,8 @@
787 787  
788 788  === 5.5.4  System ~-~-> WiFi ===
789 789  
790 -
791 791  LPS8N WiFi Settings.
792 792  
793 -
794 794  [[image:1657155457089-430.png]]
795 795  
796 796  
... ... @@ -797,17 +797,15 @@
797 797  
798 798  === 5.5.5  System ~-~-> Cellular ===
799 799  
800 -
801 801  While use the cellular as Backup WAN, device will use Cellular for internet connection while WAN port or WiFi is not valid and switch back to WAN port or WiFi after they recover.
802 802  
803 803  
804 804  [[image:1657155507672-204.png]]
805 805  
688 +(% style="color:red" %)Note *: For LPS8N which doesn't have the cellular module, this page will shows Cellular not detected.
806 806  
807 -(% style="color:red" %)**Note *: For LPS8N which doesn't have the cellular module, this page will shows Cellular not detected.**
808 808  
809 809  
810 -
811 811  === 5.5.6  System ~-~-> Network Status ===
812 812  
813 813  
... ... @@ -817,16 +817,8 @@
817 817  
818 818  === 5.5.7  System ~-~-> Remote Mgnt & Auto Provision ===
819 819  
701 +Auto Provision is the feature for batch configure and remote management. It can be used in below two cases:(% style="display:none" %) 
820 820  
821 -Auto Provision is the feature for batch configure and remote management. It can be used in below two cases:
822 -
823 -
824 -[[image:image-20220707112053-4.png||height="451" width="995"]]
825 -
826 -[[image:image-20220707112053-5.png||height="453" width="1004"]]
827 -
828 -(% style="display:none" %)
829 -
830 830  (% style="display:none" %) [[image:1657157402578-508.png||height="450" width="992"]]
831 831  
832 832  (% id="cke_bm_589629S" style="display:none" %) [[image:image-20220707092040-2.png||height="452" width="1002"]]
... ... @@ -834,17 +834,12 @@
834 834  [[image:image-20220707092040-3.png||height="449" width="956"]]
835 835  
836 836  
837 -(((
838 -Please see this document for detail:  [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8N/Firmware/Application_Note/&file=Auto-update-feature.pdf>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Application_Note/&file=Auto-update-feature.pdf]]
839 -)))
710 +Please see this document for detail:(% style="display:none" %)
840 840  
841 -(% style="display:none" %) (%%)
712 +[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8N/Firmware/Application_Note/&file=Auto-update-feature.pdf>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Application_Note/&file=Auto-update-feature.pdf]]
842 842  
843 -(((
844 -R-SSH is for remote access device and management, introduction for how to use: [[Remote Access Gateway>>doc:Main.Monitor & Remote Access Gateway.WebHome]]
845 845  
846 -
847 -)))
715 +R-SSH is for remote access device and management, introduction for how to use: **[[Remote Access Gateway>>doc:Main.Remote Access Gateway.WebHome]]**
848 848  
849 849  [[image:1652429624400-864.png||height="432" width="716"]]
850 850  
... ... @@ -852,7 +852,6 @@
852 852  
853 853  === 5.5.8  System ~-~-> Firmware Upgrade ===
854 854  
855 -
856 856  We keep improving the LPS8N Linux side firmware for new features and bug fixes. Below are the links for reference.
857 857  
858 858  * **Latest firmware**: [[LoRa Gateway Firmware>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG02-OLG02/Firmware/]],
... ... @@ -870,33 +870,19 @@
870 870  
871 871  (((
872 872  (% style="color:green" %)**Web~-~-> System~-~-> Firmware Upgrade**
873 -
874 -
875 875  )))
876 876  
877 877  [[image:1657156052651-770.png]]
878 878  
744 +Select the required image and click **Flash Image.** The image will be uploaded to the device, and then click **Process Update** to upgrade.
879 879  
880 -(((
881 -Select the required image and click (% style="color:blue" %)**Flash Image.**(%%) The image will be uploaded to the device, and then click (% style="color:blue" %)**Process Update**(%%) to upgrade.
882 -)))
883 883  
747 +(% style="color:red" %)**NOTE**: (% style="color:black" %)You normally need to **//uncheck//** the **Preserve Settings** checkbox when doing an upgrade to ensure that there is no conflict between the old settings and the new firmware. The new firmware will start up with its default settings.
884 884  
885 -(((
886 -(% style="color:red" %)**NOTE**: (%%)You normally need to (% style="color:blue" %)**//uncheck//**(%%) the (% style="color:blue" %)**Preserve Settings**(%%) checkbox when doing an upgrade to ensure that there is no conflict between the old settings and the new firmware. The new firmware will start up with its default settings.
887 -
888 -
889 -)))
890 -
891 -(((
892 892  The system will automatically boot into the new firmware after upgrade.
893 893  
894 -
895 -)))
896 -
897 897  [[image:1657156094153-520.png]]
898 898  
899 -
900 900  (% style="color:red" %)**NOTE***(%%): User can also upgrade firmware via Linux console
901 901  
902 902  SCP the firmware to the system(% style="color:green" %)**/var**(%%)** **directory and then run
... ... @@ -907,10 +907,8 @@
907 907  (% style="color:red" %)**NOTE**(%%) : it is important to transfer the image in the /var directory, otherwise it may exceed the available flash size.
908 908  
909 909  
910 -
911 911  === 5.5.9  System ~-~-> Reboot/Reset ===
912 912  
913 -
914 914  [[image:1652430197132-330.png||height="256" width="724"]]
915 915  
916 916  (((
... ... @@ -924,7 +924,6 @@
924 924  
925 925  [[image:1657156199070-491.png]]
926 926  
927 -
928 928  Place to show what package has installed and possible to upgrade packages.
929 929  
930 930  
... ... @@ -931,13 +931,11 @@
931 931  
932 932  == 5.6  LogRead ==
933 933  
934 -
935 935  === 5.6.1  LogRead ~-~-> LoRa Log ===
936 936  
937 937  
938 938  Show the frequency for LoRa Radio and traffics.
939 939  
940 -
941 941  [[image:1657156300781-933.png]]
942 942  
943 943  
... ... @@ -944,10 +944,8 @@
944 944  
945 945  === 5.6.2  LogRead ~-~-> System Log ===
946 946  
947 -
948 948  Show the system log
949 949  
950 -
951 951  [[image:1657156341198-226.png]]
952 952  
953 953  
... ... @@ -954,69 +954,41 @@
954 954  
955 955  = 6.  More features =
956 956  
957 -
958 958  == 6.1 Packet Filtering ==
959 959  
960 -
961 -(((
962 962  Drop unwanted packets.
963 -)))
964 964  
965 -(((
966 966  See: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Filter%20unwanted%20LoRaWAN%20packets/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Filter%20unwanted%20LoRaWAN%20packets/]]
967 -)))
968 968  
969 969  
970 -
971 971  == 6.2 Remote Access ==
972 972  
973 -
974 -(((
975 975  Remote Access Devices for management.
976 -)))
977 977  
978 -(((
979 -Instruction: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Monitor%20%26%20Remote%20Access%20Gateway/?Remote%20Access>>http://wiki.dragino.com/xwiki/bin/view/Main/Monitor%20%26%20Remote%20Access%20Gateway/?Remote%20Access]]
980 -)))
814 +Instruction: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Remote%20Access%20Gateway/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Remote%20Access%20Gateway/]]
981 981  
982 982  
983 -
984 984  == 6.3 How to decode ABP LoRaWAN node ==
985 985  
986 -
987 -(((
988 988  Decode ABP:
989 -)))
990 990  
991 -(((
992 992  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Communicate%20with%20ABP%20End%20Node%20without%20LoRaWAN%20Network%20Server%20~~-~~--%20LG308/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Communicate%20with%20ABP%20End%20Node%20without%20LoRaWAN%20Network%20Server%20---%20LG308/]]
993 -)))
994 994  
995 995  
996 -
997 997  == 6.4 How to set data to MQTT broker ==
998 998  
999 -
1000 -(((
1001 1001  Only support ABP LoRaWAN End Node
1002 -)))
1003 1003  
1004 -(((
1005 1005  Instruction: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/MQTT%20Forward%20Instruction/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/MQTT%20Forward%20Instruction/]]
1006 -)))
1007 1007  
1008 1008  
1009 -
1010 1010  == 6.5  More instructions ==
1011 1011  
1012 -
1013 1013  [[LoRaWAN Gateway Instruction>>doc:Main.WebHome]](LoRaWAN Gateway)
1014 1014  
1015 1015  
1016 -
1017 1017  == 6.6  Auto-Provision ==
1018 1018  
1019 -
1020 1020  Auto Provision is the feature for batch configure and remote management. It can be used in below two cases:
1021 1021  
1022 1022  [[image:image-20220707092040-1.png||height="451" width="995"]]
... ... @@ -1025,25 +1025,20 @@
1025 1025  
1026 1026  [[image:image-20220707092040-3.png||height="449" width="956"]](% style="display:none" %)
1027 1027  
846 +Please see this document for detail:
1028 1028  
1029 -(((
1030 -Please see this document for detail: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8N/Firmware/Application_Note/&file=Auto-update-feature.pdf>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Application_Note/&file=Auto-update-feature.pdf]]
1031 -)))
848 +[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8N/Firmware/Application_Note/&file=Auto-update-feature.pdf>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Application_Note/&file=Auto-update-feature.pdf]]
1032 1032  
1033 1033  (% style="display:none" %) (%%)
1034 1034  
1035 -
1036 1036  = 7.  (% style="display:none" %) (%%)Linux System =
1037 1037  
1038 -
1039 1039  The LPS8N is based on the OpenWrt Linux system. It is open source, and users are free to configure and modify the Linux settings.
1040 1040  
1041 1041  (% style="display:none" %) (%%)
1042 1042  
1043 -
1044 1044  == 7.1  SSH Access for Linux console ==
1045 1045  
1046 -
1047 1047  User can access the Linux console via the SSH protocol. Make sure your PC and the LPS8N are connected to the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]] in Windows) to access it.
1048 1048  
1049 1049  IP address:  IP address of LPS8N
... ... @@ -1059,10 +1059,9 @@
1059 1059  
1060 1060  [[image:1657158198733-338.png]]
1061 1061  
875 +The “(% class="mark" %)**logread -f**(%%)” command can be used to debug how system runs.
1062 1062  
1063 -The “** (% style="background-color:yellow" %)logread -f(%%)**(% style="background-color:yellow" %)” (%%)command can be used to debug how system runs.
1064 1064  
1065 -
1066 1066  [[image:1657158190234-805.png]]
1067 1067  
1068 1068  
... ... @@ -1069,7 +1069,6 @@
1069 1069  
1070 1070  == 7.2  Edit and Transfer files ==
1071 1071  
1072 -
1073 1073  (((
1074 1074  The LPS8N supports the (% style="color:green" %)**SCP protocol** (% style="color:black" %)and has a built-in (% style="color:green" %)**SFTP server**. (% style="color:black" %)There are many ways to edit and transfer files using these protocols.
1075 1075  )))
... ... @@ -1092,7 +1092,6 @@
1092 1092  
1093 1093  == 7.3  File System ==
1094 1094  
1095 -
1096 1096  (((
1097 1097  The LPS8N has a 16MB flash and a 64MB RAM. The /var and /tmp directories are in the RAM, so contents stored in /tmp and /var will be erased after rebooting the device. Other directories are in the flash and will remain after reboot.
1098 1098  )))
... ... @@ -1106,10 +1106,8 @@
1106 1106  )))
1107 1107  
1108 1108  
1109 -
1110 1110  == 7.4  Package maintenance system ==
1111 1111  
1112 -
1113 1113  LPS8N uses the OpenWrt [[**OPKG package maintenance system**>>https://oldwiki.archive.openwrt.org/doc/techref/opkg]]. There are more than 3000+ packages available in our package server for users to install for their applications. For example, if you want to add the **//iperf //** tool, you can install the related packages and configure LPS8N to use **//iperf //**.
1114 1114  
1115 1115  (((
... ... @@ -1168,7 +1168,6 @@
1168 1168  
1169 1169  = 8.  Upgrade Linux Firmware =
1170 1170  
1171 -
1172 1172  We keep improving the LPS8N Linux side firmware for new features and bug fixes. Below are the links for reference.
1173 1173  
1174 1174  * **Latest firmware**: [[LoRa Gateway Firmware>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG02-OLG02/Firmware/]],
... ... @@ -1180,71 +1180,45 @@
1180 1180  ( [[http:~~/~~/www.dragino.com/downloads/downloads/LoRa_Gateway/LPS8N/Firmware/ChangeLog>>url:http://www.dragino.com/downloads/downloads/LoRa_Gateway/LIG16/Firmware/ChangeLog]] )
1181 1181  
1182 1182  
1183 -(((
1184 1184  The file named as (% style="color:green" %)** xxxxx–xxxxx-squashfs-sysupgrade.bin **(%%)is the upgrade Image. There are different methods to upgrade, as below.
1185 -)))
1186 1186  
1187 1187  
1188 -
1189 1189  == 8.1 Upgrade via Web UI ==
1190 1190  
1191 -
1192 -(((
1193 1193  Go to the page: (% style="color:green" %)**Web ~-~-> System ~-~-> Firmware Upgrade**
1194 -)))
1195 1195  
1196 -(((
1197 1197  Select the required image and click (% style="color:red" %)**Flash Image.**(%%) The image will be uploaded to the device, and then click (% style="color:red" %)**Process Update**(%%) to upgrade.
1198 -)))
1199 1199  
1200 1200  
1201 -(((
1202 -(% style="color:red" %)**NOTE**(%%): You normally need to (% style="color:blue" %)**//uncheck//**(%%) the (% style="color:blue" %)//**Preserve Settings**//(%%) checkbox when doing an upgrade to ensure that there is no conflict between the old settings and the new firmware. The new firmware will start up with its default settings.
1203 -)))
1000 +(% style="color:red" %)**NOTE**(%%): You normally need to **//uncheck//** the //**Preserve Settings**// checkbox when doing an upgrade to ensure that there is no conflict between the old settings and the new firmware. The new firmware will start up with its default settings.
1204 1204  
1205 1205  
1206 -(((
1207 1207  The system will automatically boot into the new firmware after upgrade.
1208 1208  
1209 -
1210 -)))
1211 -
1212 1212  [[image:1657158986600-386.png]]
1213 1213  
1214 1214  
1215 -
1216 1216  == 8.2 Upgrade via Linux console ==
1217 1217  
1218 -
1219 -(((
1220 1220  SCP the firmware to the system** (% style="color:green" %)/var(%%)** directory and then run
1221 -)))
1222 1222  
1223 -(((
1224 1224  (% style="color:#4472c4" %)** //root@OpenWrt:~~# /sbin/sysupgrade –n /var/Your_Image//**
1225 -)))
1226 1226  
1227 1227  
1228 -(((
1229 1229  (% style="color:red" %)**NOTE**(%%): it is important to transfer the image in the /var directory, otherwise it may exceed the available flash size.
1230 -)))
1231 1231  
1232 1232  
1233 1233  
1234 1234  = 9.  FAQ =
1235 1235  
1236 -
1237 1237  == 9.1  How can I configure for a customized frequency band? ==
1238 1238  
1239 -
1240 1240  (((
1241 -See below link for how to customize frequency band: [[How to customized LoRaWAN frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]
1024 +See below link for how to customize frequency band: **[[How to customized LoRaWAN frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]**
1242 1242  )))
1243 1243  
1244 1244  (((
1245 1245  
1246 -
1247 -
1248 1248  )))
1249 1249  
1250 1250  == 9.2  Can I make my own firmware for the gateway, where can I find the source code? ==
... ... @@ -1260,23 +1260,17 @@
1260 1260  
1261 1261  (((
1262 1262  
1263 -
1264 -
1265 1265  )))
1266 1266  
1267 1267  == 9.3  Can I use 868Mhz version for 915Mhz bands? ==
1268 1268  
1269 -
1270 1270  It is possible but the distance will be very short, you can select US915 frequency band in 868Mhz version hardware. It will work but you will see the performance is greatly decreased because the 868Mhz version has an RF filter for band 863~~870Mhz, all other frequencies will have high attenuation.
1271 1271  
1272 1272  
1273 -
1274 1274  = 10.  Trouble Shooting =
1275 1275  
1276 -
1277 1277  == 10.1  I get kernel error when install new package, how to fix? ==
1278 1278  
1279 -
1280 1280  In some cases, when installing a package with **//opkg//**, it will generate a kernel error such as below due to a mismatch I the kernel ID:
1281 1281  
1282 1282  (% style="background-color:yellow" %)root@dragino-16c538:~~# opkg install kmod-dragino2-si3217x_3.10.49+0.2-1_ar71xx.ipk
... ... @@ -1298,23 +1298,18 @@
1298 1298  (% style="background-color:yellow" %)Opkg install kmod-dragino2-si3217x_3.10.49+0.2-1_ar71xx.ipk –force-depends
1299 1299  
1300 1300  
1301 -
1302 1302  == 10.2  How to recover the LPS8N if the firmware crashes ==
1303 1303  
1304 -
1305 1305  (((
1306 -Please follow this instruction to recover your gateway:  [[Recover Gateway>>doc:Main.How to Recover Gateway if can't access it.WebHome]]
1079 +Please follow this instruction to recover your gateway:  **[[Recover Gateway>>doc:Main.How to Recover Gateway if can't access it.WebHome]]**
1307 1307  )))
1308 1308  
1309 1309  (((
1310 1310  
1311 -
1312 -
1313 1313  )))
1314 1314  
1315 1315  == 10.3  I configured LPS8N for WiFi access and lost its IP. What to do now? ==
1316 1316  
1317 -
1318 1318  [[image:1657159323292-776.png]]
1319 1319  
1320 1320  
... ... @@ -1322,10 +1322,10 @@
1322 1322  The LPS8N has a fall-back IP address on its WAN port. This IP is always enabled so you can use the fall-back IP to access LPS8N no matter what the WiFi IP is. The fall back IP is useful for connecting and debug the unit.
1323 1323  )))
1324 1324  
1325 -(% style="color:red" %)**Note: fallback IP can be disabled in the WAN and DHCP page.**
1095 +(% style="color:red" %)Note: fallback IP can be disabled in the WAN and DHCP page.
1326 1326  
1327 1327  
1328 -**Steps to connect via fall back IP:**
1098 +Steps to connect via fall back IP:
1329 1329  
1330 1330  ~1. Connect PC's Ethernet port to LG01's WAN port
1331 1331  
... ... @@ -1333,43 +1333,38 @@
1333 1333   IP: 172.31.255.253 and
1334 1334   Netmask: 255.255.255.252
1335 1335  
1336 -
1337 1337  As below photo:
1338 1338  
1339 1339  [[image:1652435256286-879.png]]
1340 1340  
1341 -
1342 1342  3. In the PC, use IP address 172.31.255.254 to access the LPS8N via Web or Console.
1343 1343  
1344 1344  Please note the latest firmware uses port 8000 for http and 2222 for ssh access.
1345 1345  
1346 1346  
1347 -
1348 1348  == 10.4  I connect to the LPS8N's SSID but LPS8N didn't assign DHCP IP to my laptop? ==
1349 1349  
1350 -
1351 1351  (((
1352 1352  This is a known bug for the firmware version before 2019-09-23 for LPS, the issue was fixed since version: LG02_LG08~-~-build-v5.2.1569218466-20190923-1402.
1353 1353  )))
1354 1354  
1355 1355  (((
1356 -In the old version, user can use the [[fall back ip method >>||anchor="H10.3A0IconfiguredLPS8NforWiFiaccessandlostitsIP.Whattodonow3F"]]to access and configure the device.
1122 +In the old version, user can use the [[fall back ip method >>path:#_I_configured_LPS8]]to access and configure the device.
1357 1357  )))
1358 1358  
1359 1359  
1360 -
1361 1361  = 11.  Order Info =
1362 1362  
1363 1363  
1364 -**//PART: (% style="color:blue" %)LPS8N-XXX-YYY//: (%%)**
1129 +(% style="color:#4f81bd" %)**//PART: LPS8N-XXX-YYY//: **
1365 1365  
1366 1366  
1367 -(% style="color:blue" %) **//XXX~://**(%%)**// Frequency Band//**
1132 +(% style="color:#4f81bd" %) **//XXX: Frequency Band//**
1368 1368  
1369 1369  * (% style="color:red" %)** 868**(% style="color:black" %) : valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865 or KZ865.
1370 1370  * (% style="color:red" %)** 915**(% style="color:black" %): valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920
1371 1371  
1372 -(% style="color:blue" %) **//YYY~://**(%%)**// 4G Cellular Option//**
1137 +(% style="color:#4f81bd" %) **//YYY: 4G Cellular Option//**
1373 1373  
1374 1374  * (% style="color:red" %)** EC25-E**(% style="color:black" %): EMEA, Korea, Thailand, India.
1375 1375  * (% style="color:red" %)** EC25-A**(% style="color:black" %): North America/ Rogers/AT&T/T-Mobile.
... ... @@ -1379,15 +1379,13 @@
1379 1379  More info about valid bands, please see [[EC25-E product page>>url:https://www.quectel.com/product/ec25.htm]].
1380 1380  
1381 1381  
1147 += 12. Packing Info =
1382 1382  
1383 -= 12.  Packing Info =
1384 -
1385 -
1386 1386  (((
1387 1387  **Package Includes**:
1388 1388  )))
1389 1389  
1390 -* LPS8N LoRaWAN Gateway x 1
1153 +* DLOS8N LoRaWAN Gateway x 1
1391 1391  * Stick Antenna for LoRa RF part. Frequency is one of 470 or 868 or 915Mhz depends the model ordered
1392 1392  * Packaging with environmental protection paper box
1393 1393  
... ... @@ -1403,12 +1403,11 @@
1403 1403  
1404 1404  
1405 1405  
1406 -= 13.  Support =
1407 1407  
1170 +
1171 += 13. Support =
1172 +
1408 1408  * Try to see if your questions already answered in the [[wiki>>doc:Main.WebHome]].
1409 1409  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8.
1410 1410  Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before mentioned schedule.
1411 1411  * 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:[[support@dragino.com>>url:file:///C:/Users/11315/Documents/D:/Projects/LoRa%20Product%20Line/LG308%20Picocell%20Gateway/LG308/LG308%20%25E8%25AF%25B4%25E6%2598%258E%25E4%25B9%25A6/support@dragino.com]]
1412 -
1413 -
1414 -
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