<
From version < 95.2 >
edited by Xiaoling
on 2022/07/04 15:17
To version < 80.2 >
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Title
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1 -LPS8N - LoRaWAN Gateway User Manual
1 +DLOS8N
Content
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1 +
2 +
1 1  (% style="text-align:center" %)
2 -[[image:1656917428377-954.png||height="475" width="475"]]
4 +[[image:1652409757234-446.png||height="399" width="399"]]
3 3  
4 4  
5 5  
8 +**DLOS8N Outdoor LoRaWAN Gateway User Manual**
6 6  
10 +
7 7  **Table of Contents:**
8 8  
13 +{{toc/}}
9 9  
10 10  
11 11  
12 12  
18 += 1. Introduction =
13 13  
20 +== 1.1 What is the DLOS8N ==
14 14  
22 +(((
23 +The DLOS8N is an (% style="color:#4f81bd" %)open source outdoor LoRaWAN Gateway. (% style="color:black" %)It lets you bridge LoRa wireless network to an IP network via WiFi, Ethernet, 3G or 4G cellular. The LoRa wireless allows users to send data and reach extremely long ranges at low data-rates.
24 +)))
15 15  
26 +(((
27 +DLOS8N supports (% style="color:#4f81bd" %)Semtech packet forwarder (% style="color:black" %)and (% style="color:#4f81bd" %)LoRaWAN Station connection, (% style="color:black" %)it is fully compatible with LoRaWAN protocol. DLOS8N includes a (% style="color:#4f81bd" %)SX1302 LoRaWAN concentrator.
28 +)))
16 16  
30 +(((
31 +DLOS8N has (% style="color:#4f81bd" %)pre-configured standard LoRaWAN frequency bands (% style="color:black" %)to use for different countries.User can also customize the frequency bands to use in their own LoRaWAN network.
32 +)))
17 17  
34 +(((
35 +DLOS8N can communicate with ABP LoRaWAN end node without LoRaWAN server. System integrator can use it to integrate with their existing IoT Service without set up own LoRaWAN server or use 3rd party LoRaWAN service.
36 +)))
18 18  
19 -
20 -
21 -(% style="color:inherit; font-family:inherit; font-size:29px" %)1. Introduction
22 -
23 -== 1.1 What is the LPS8N ==
24 -
25 -
26 -
27 -The LPS8N is an (% style="color:#4f81bd" %)**open source LoRaWAN Indoor Gateway**(%%). It lets you bridge LoRa wireless network to an IP network via WiFi, Ethernet, 3G or 4G cellular network. The LoRa wireless allows users to send data and reach extremely long ranges at low data-rates.
28 -
29 -The LPS8N uses (% style="color:#4f81bd" %)**Semtech packet forwarder**(%%) & (% style="color:#4f81bd" %)**LoRaWAN Station connection**(%%) and fully compatible with LoRaWAN protocol. It includes a (% style="color:#4f81bd" %)**SX1302 LoRaWAN concentrator**(%%), which provides 10 programmable parallel demodulation paths.
30 -
31 -LPS8N has (% style="color:#4f81bd" %)**pre-configured standard LoRaWAN frequency bands**(%%) to use for different countries. User can also (% style="color:#4f81bd" %)**customized the frequency bands** (%%)to use in their own LoRa network.
32 -
33 -LPS8N can communicate with ABP LoRaWAN end node without LoRaWAN server. System integrator can use it to integrate with their existing IoT Service without set up own LoRaWAN server or use 3rd party LoRaWAN service.
34 -
35 35  (((
36 -
39 +DLOS8N supports (% style="color:#4f81bd" %) auto-provision (% style="color:black" %) for mass deployment and long term maintain. System intergrator can easily change the settings.
37 37  )))
38 38  
39 -[[image:1656918270059-192.png]]
42 +[[image:1652411526195-923.png||height="494" width="731"]]
40 40  
41 -
42 42  == 1.2 Specifications ==
43 43  
46 +**Hardware System:**
44 44  
45 -(% style="color:#037691" %)**Hardware System:**
46 -
47 47  (((
48 48   Linux Part:
49 49  )))
... ... @@ -52,21 +52,19 @@
52 52  * 64MB RAM
53 53  * 16MB Flash
54 54  
56 +**Interface:**
55 55  
56 -(% style="color:#037691" %)**Interface:**
57 -
58 -
59 59  * 10M/100M RJ45 Ports x 1
60 60  * WiFi : 802.11 b/g/n
61 61  * LoRaWAN Wireless
62 -* Power Input: 5V DC, 2A, Type C
61 +* Power Input: 12 ~~ 24 V DC, 2 A
62 +* IEEE 802.3 af compliant PoE port (DC 37  ~~ 57 v)
63 63  * USB 2.0 host connector x 1
64 64  * Mini-PCI E connector x 1
65 65  * SX1302 + 2 x SX1250
66 66  
67 +**WiFi Spec:**
67 67  
68 -(% style="color:#037691" %)**WiFi Spec:**
69 -
70 70  * IEEE 802.11 b/g/n
71 71  * Frequency Band: 2.4 ~~ 2.462GHz
72 72  * Tx power:
... ... @@ -78,11 +78,9 @@
78 78  ** 11g 54M : -71dbm
79 79  ** 11n 20M : -67dbm
80 80  
80 +**LoRa Spec:**
81 81  
82 -(% style="color:#037691" %)**LoRa Spec:**
83 -
84 -
85 -* Up to -140 dBm sensitivity
82 +* Up to -140 dBm sensitivity with SX1250 Tx/Rx front-end
86 86  * 70 dB CW interferer rejection at 1 MHz offset
87 87  * Able to operate with negative SNR, CCR up to 9dB
88 88  * Emulates 49 x LoRa demodulators and 1 x (G)FSK demodulator
... ... @@ -91,18 +91,24 @@
91 91  * Dynamic data-rate (DDR) adaptation
92 92  * True antenna diversity or simultaneous dual-band operation
93 93  
91 +**Cellular 4G LTE (optional):**
94 94  
95 -(% style="color:#037691" %)**Cellular 4G LTE (optional):**
96 -
97 -
98 -* Quectel [[**EC25 LTE module**>>url:https://www.quectel.com/product/ec25minipcie.htm]]
99 -* Micro SIM Slot
100 -* External 4G Sticker Antenna.
93 +* Quectel: [[**EC25 LTE module**>>url:https://www.quectel.com/product/ec25minipcie.htm]]
94 +* Standard Size SIM Slot
95 +* 2 x 4G Sticker Antenna.
101 101  * Up to 150Mbps downlink and 50Mbps uplink data rates
102 102  * Worldwide LTE,UMTS/HSPA+ and GSM/GPRS/EDGE coverage
103 103  * MIMO technology meets demands for data rate and link reliability in modem wireless communication systems
104 104  
100 +**Power over Ethernet:**
105 105  
102 +* IEEE 802.3af compliant.
103 +* Support wide input voltage range  37Vdc to 57Vdc.
104 +* Thermal cut off.
105 +* Short circuit protection.
106 +* Over current protection
107 +* Isolation level 4 KVrms.
108 +* Enhanced surge protection
106 106  
107 107  == 1.3 Features ==
108 108  
... ... @@ -287,7 +287,7 @@
287 287  In the (% style="color:#4f81bd" %)**home**(%%) page, we can check the Internet connection.
288 288  
289 289  * GREEN Tick ​​​​ [[image:1652436675869-206.png||height="14" width="15"]] : This interface has Internet connection.
290 -* Yellow  Tick  [[image:1652436705761-420.png||height="15" width="15"]] : This interface has IP address but don’t use it for internet connection.
293 +* Yellow Tick   [[image:1652436705761-420.png||height="15" width="15"]] : This interface has IP address but don’t use it for internet connection.
291 291  * RED Cross    [[image:1652436787176-950.png||height="14" width="15"]] : This interface doesn’t connected.
292 292  
293 293  [[image:1652421351382-793.png||height="339" width="765"]]
... ... @@ -296,13 +296,11 @@
296 296  
297 297  DLOS8N 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.
298 298  
299 -(((
300 300  [[image:image-20220513140429-1.png||height="565" width="824"]]
301 -)))
302 302  
303 303  This chapter describes how to use the DLOS8Nto work with
304 304  
305 -TheThingsNetwork v3(TTN v3)[[ LoRaWAN Server>>url:https://www.thethingsnetwork.org/]]  ([[www.thethingsnetwork.org>>url:http://www.thethingsnetwork.org/]])
306 +[[T>>url:https://www.thethingsnetwork.org/]]heThingsNetwork v3(T[[TN>>url:https://www.thethingsnetwork.org/]] v3[[)>>url:http://)]][[ LoRaWAN Server>>url:https://www.thethingsnetwork.org/]]  ([[www.thethingsnetwork.org>>url:http://www.thethingsnetwork.org/]])
306 306  
307 307  == 4.1 Create a gateway in TTN V3 Server ==
308 308  
... ... @@ -312,12 +312,11 @@
312 312  Every DLOS8N has a unique gateway id. The ID can be found at LoRaWAN page:
313 313  )))
314 314  
315 -(((
316 316  [[image:1652421929753-168.png||height="403" width="739"]]
317 -)))
318 318  
319 -The example gateway id is: **a840411e96744154**
318 +The example gateway id is: a840411e96744154
320 320  
320 +
321 321  (% style="color:#4f81bd" %)**Step 2: Sign up a user account in TTN server**
322 322  
323 323  [[**https:~~/~~/account.thethingsnetwork.org/register**>>url:https://account.thethingsnetwork.org/register]]
... ... @@ -324,12 +324,12 @@
324 324  
325 325  [[image:1652422127479-258.png||height="346" width="738"]]
326 326  
327 +
327 327  (% style="color:#4f81bd" %)**Step 3: Choose the TTNv3 Cluster Picker**
328 328  
329 -(((
330 330  [[image:1652422142236-792.png||height="356" width="737"]]
331 -)))
332 332  
332 +
333 333  (% style="color:red" %)**Note: Choose the cluster corresponds to a specific Gateway server address**
334 334  
335 335  * Europe 1 (% style="color:red" %)corresponding Gateway server address: (% style="color:black" %)eu1.cloud.thethings.network
... ... @@ -349,9 +349,7 @@
349 349  
350 350  [[image:1652422479876-297.png||height="398" width="729"]]
351 351  
352 -(((
353 353  (% style="color:red" %)**Notice: **Gateway Server address must match the gateway configuration, otherwise you will have problem for End Node to join the network.
354 -)))
355 355  
356 356  After creating the gateway, you can see the gateway info, as below.
357 357  
... ... @@ -359,17 +359,11 @@
359 359  
360 360  == 4.2 Configure DLOS8N to connect to TTN v3 ==
361 361  
362 -(((
363 363  You can now configure the DLOS8N to let it connect to TTN network V3.
364 -)))
365 365  
366 -(((
367 367  Make sure your DLOS8N has a working Internet Connection first.
368 -)))
369 369  
370 -(((
371 371  Choose the right server provider and click (% style="color:#4f81bd" %)**Save&Apply**
372 -)))
373 373  
374 374  [[image:1652422624783-580.png||height="327" width="729"]]
375 375  
... ... @@ -424,15 +424,24 @@
424 424  
425 425  [[image:1652422840936-838.png]]
426 426  
419 +
427 427  (((
428 428  (% 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.
429 429  )))
430 430  
431 431  (((
425 +
426 +)))
427 +
428 +(((
432 432  For the TTN v3 server, you can use the codes set in the device as in the following example.
433 433  )))
434 434  
435 435  (((
433 +
434 +)))
435 +
436 +(((
436 436  Select **Add Application** to open the screen below.
437 437  )))
438 438  
... ... @@ -448,6 +448,7 @@
448 448  Select OTAA activation mode
449 449  )))
450 450  
452 +
451 451  (((
452 452  The LoRaWAN version for your device should be provided by the manufacturer in a datasheet as LoRaWAN version or LoRaWAN specification. The most commonly used LoRaWAN versions are v1.0.2 and v1.0.3.
453 453  )))
... ... @@ -466,6 +466,7 @@
466 466  Finally, Application layer settings input the corresponding AppKey. Before saving the configuration, check that the data matches the device.
467 467  )))
468 468  
471 +
469 469  (((
470 470  (% 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.
471 471  )))
... ... @@ -505,8 +505,9 @@
505 505  
506 506  [[image:1652423554776-574.png||height="380" width="740"]]
507 507  
508 -Note *: **[[See this instruction for how to customize frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]**
511 +Note *: See this instruction for how to customize frequency band:
509 509  
513 +[[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]]
510 510  
511 511  === 5.2.2 LoRa ~-~-> ABP Decryption ===
512 512  
... ... @@ -513,10 +513,10 @@
513 513  The DLOS8N can communicate with LoRaWAN ABP End Node without the need of LoRaWAN server. It can be used in some cases such as:
514 514  
515 515  * No internet connection.
516 -* User wants to get data forward in gateway and forward to their server based on MQTT/HTTP, etc. (Combine ABP communication method and [[MQTT forward together>>doc:Main.MQTT Forward Instruction.WebHome]]).
520 +* User wants to get data forward in gateway and forward to their server based on MQTT/HTTP, etc. (Combine ABP communication method and [[MQTT forward together>>http://8.211.40.43:8080/xwiki/bin/view/Main/MQTT%20Forward%20Instruction/]]).
517 517  
518 518  (((
519 -Detail of this feature: **[[Communication with ABP End Node>>doc:Main.Communicate with ABP End Node without LoRaWAN Network Server --- LG308.WebHome]]**
523 +Detail of this feature: [[Communication with ABP End Node>>http://8.211.40.43:8080/xwiki/bin/view/Main/Communicate%20with%20ABP%20End%20Node%20without%20LoRaWAN%20Network%20Server%20---%20LG308/]]
520 520  )))
521 521  
522 522  [[image:1652423628833-467.png||height="357" width="755"]]
... ... @@ -535,7 +535,7 @@
535 535  
536 536  ~**: Packet filter is to drop the unwanted LoRaWAN packet, instruction see here:
537 537  
538 -**See:** **[[Filter unwanted LoRaWAN packets>>doc:Main.Filter unwanted LoRaWAN packets.WebHome]]**
542 +See :[[Filter unwanted LoRaWAN packets>>http://8.211.40.43:8080/xwiki/bin/view/Main/Filter%20unwanted%20LoRaWAN%20packets/]]
539 539  
540 540  === 5.3.2 LoRaWAN ~-~-> Amazon AWS-IoT ===
541 541  
... ... @@ -542,7 +542,7 @@
542 542  [[image:1652428499323-384.png||height="275" width="723"]]
543 543  
544 544  (((
545 -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]].**
549 +Please see this instruction to know more detail and demo for how to connect to AWS-IoT LoRaWAN Core: [[http:~~/~~/wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core>>url:http://wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core]]
546 546  )))
547 547  
548 548  === 5.3.3 LoRaWAN ~-~-> LORIOT ===
... ... @@ -552,7 +552,7 @@
552 552  )))
553 553  
554 554  (((
555 -Instruction: **[[Notes for LORIOT>>doc:Main.Notes for LORIOT.WebHome]]**
559 +Instruction: [[http:~~/~~/wiki.dragino.com/index.php?title=Notes_for_LORIOT>>url:http://wiki.dragino.com/index.php?title=Notes_for_LORIOT]]
556 556  )))
557 557  
558 558  [[image:1652428648903-878.png||height="266" width="731"]]
... ... @@ -561,8 +561,9 @@
561 561  
562 562  If end nodes works in ABP mode, user can configure DLOS8N to transfer the data to MQTT broker,
563 563  
564 -Instruction: **[[MQTT Forward Instruction>>doc:Main.MQTT Forward Instruction.WebHome]]**
568 +Instruction:
565 565  
570 +[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#MQTT_Forward_Instruction>>url:http://wiki.dragino.com/index.php?title=Main_Page#MQTT_Forward_Instruction]]
566 566  
567 567  [[image:1652428705046-212.png||height="417" width="733"]]
568 568  
... ... @@ -591,10 +591,18 @@
591 591  )))
592 592  
593 593  (((
599 +
600 +)))
601 +
602 +(((
594 594  **__Timezone:__**Set device timezone.
595 595  )))
596 596  
597 597  (((
607 +
608 +)))
609 +
610 +(((
598 598  **__Port forwarding:__**Enable/Disable the HTTP and SSH access via WAN interface.
599 599  )))
600 600  
... ... @@ -612,8 +612,6 @@
612 612  
613 613  (((
614 614  __**WiFi Settings:**__Setting for DLOS8N WiFi IP when use it as WiFi Client
615 -
616 -
617 617  )))
618 618  
619 619  === 5.5.4 System ~-~-> WiFi ===
... ... @@ -622,6 +622,7 @@
622 622  
623 623  [[image:1652429430767-921.png||height="367" width="723"]]
624 624  
636 +
625 625  === 5.5.5 System ~-~-> Cellular ===
626 626  
627 627  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.
... ... @@ -630,10 +630,12 @@
630 630  
631 631  (% style="color:red" %)Note *: For DLOS8N which doesn’t have the cellular module, this page will shows Cellular not detected.
632 632  
645 +
633 633  === 5.5.6 System ~-~-> Network Status ===
634 634  
635 635  [[image:1652429486609-208.png||height="415" width="728"]]
636 636  
650 +
637 637  === 5.5.7 System ~-~-> Remote Mgnt & Auto Provision ===
638 638  
639 639  Auto Provision is the feature for batch configure and remote management. It can be used in below two cases:
... ... @@ -646,13 +646,13 @@
646 646  
647 647  Please see this document for detail:
648 648  
649 -(((
650 650  [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/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]]
651 -)))
652 652  
653 653  
654 -R-SSH is for remote access device and management, introduction for how to use: **[[Remote Access Gateway>>doc:Main.Remote Access Gateway.WebHome]]**
666 +R-SSH is for remote access device and management, introduction for how to use:
655 655  
668 +[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#Remote_Access_Gateway_via_Reverse_SSH>>url:http://wiki.dragino.com/index.php?title=Main_Page#Remote_Access_Gateway_via_Reverse_SSH]]
669 +
656 656  [[image:1652429624400-864.png||height="432" width="716"]]
657 657  
658 658  
... ... @@ -712,24 +712,10 @@
712 712  
713 713  === 5.6.1 LogRead ~-~-> LoRa Log ===
714 714  
729 +[[image:1652430356784-567.png||height="325" width="730"]]
715 715  
716 716  Show the frequency for LoRa Radio and traffics.
717 717  
718 -[[image:image-20220615204306-1.png||height="575" width="733"]]
719 -
720 -
721 -Show the IoT Server Connection State and FWD State
722 -
723 -[[image:image-20220616083933-1.png||height="556" width="729"]]
724 -
725 -DLOS8 can view GPS location in the Logread FWD State
726 -
727 -
728 -Show the Error logs, RxTxJson lorawan packages, and PULL State
729 -
730 -[[image:image-20220615205416-6.png||height="442" width="884"]]
731 -
732 -
733 733  === 5.6.2 LogRead ~-~-> System Log ===
734 734  
735 735  Show the system log
... ... @@ -740,9 +740,8 @@
740 740  
741 741  == 6.1 More instructions ==
742 742  
743 -[[LoRaWAN Gateway Instruction>>doc:Main.WebHome]](LoRaWAN Gateway)
743 +[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRa.2FLoRaWAN_Gateway_Instruction>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRa.2FLoRaWAN_Gateway_Instruction]]
744 744  
745 -
746 746  = 7. Linux System =
747 747  
748 748  The DLOS8N is based on the OpenWrt Linux system. It is open source, and users are free to configure and modify the Linux settings.
... ... @@ -767,7 +767,6 @@
767 767  
768 768  [[image:1652431609193-637.png||height="214" width="732"]]
769 769  
770 -
771 771  == 7.2 Edit and Transfer files ==
772 772  
773 773  (((
... ... @@ -796,10 +796,18 @@
796 796  )))
797 797  
798 798  (((
797 +
798 +)))
799 +
800 +(((
799 799  The Linux system uses around 8MB ~~10MB flash size which means there is not much room for user to store data in the DLOS8N flash.
800 800  )))
801 801  
802 802  (((
805 +
806 +)))
807 +
808 +(((
803 803  You can use an external USB flash memory device to extend the size of flash memory for storage.
804 804  )))
805 805  
... ... @@ -867,16 +867,17 @@
867 867  == 9.1 How can I configure for a customized frequency band? ==
868 868  
869 869  (((
870 -See below link for how to customize frequency band: **[[How to customized LoRaWAN frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]**
876 +See below link for how to customize frequency band:
871 871  )))
872 872  
873 873  (((
874 -
880 +[[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]]
875 875  )))
876 876  
883 +
877 877  == 9.2 Can I connect DLOS8N to LORIOT? ==
878 878  
879 -Yes, the set up instruction is here: **[[Notes for LORIOT>>doc:Main.Notes for LORIOT.WebHome]]**
886 +Yes, the set up instruction is here: [[http:~~/~~/wiki.dragino.com/index.php?title=Notes_for_LORIOT>>url:http://wiki.dragino.com/index.php?title=Notes_for_LORIOT]]
880 880  
881 881  
882 882  == 9.3 Can I make my own firmware for the gateway, where can I find the source code? ==
... ... @@ -923,13 +923,14 @@
923 923  == 10.2 How to recover the DLOS8N if the firmware crashes ==
924 924  
925 925  (((
926 -Please follow this instruction to recover your gateway:  **[[Recover Gateway>>doc:Main.How to Recover Gateway if can't access it.WebHome]]**
933 +Please follow this instruction to recover your gateway:
927 927  )))
928 928  
929 929  (((
930 -
937 +[[http:~~/~~/wiki.dragino.com/index.php?title=Recover_Gateway>>url:http://wiki.dragino.com/index.php?title=Recover_Gateway]]
931 931  )))
932 932  
940 +
933 933  == 10.3 I configured DLOS8N for WiFi access and lost its IP. What to do now? ==
934 934  
935 935  [[image:1652435238615-272.png||height="247" width="727"]]
... ... @@ -998,7 +998,7 @@
998 998  
999 999  = 13. Support =
1000 1000  
1001 -* Try to see if your questions already answered in the [[wiki>>doc:Main.WebHome]].
1009 +* Try to see if your questions already answered in the [[wiki>>url:http://wiki.dragino.com/]].
1002 1002  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8.
1003 1003  Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before mentioned schedule.
1004 1004  * 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]]
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