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<
From version < 58.54 >
edited by Xiaoling
on 2022/06/06 14:16
To version < 47.1 >
edited by Xiaoling
on 2022/06/02 17:12
>
Change comment: Uploaded new attachment "image-20220602171200-9.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -6,18 +6,12 @@
6 6  **RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 -
10 -
11 11  **Table of Contents:**
12 12  
13 -{{toc/}}
14 14  
15 15  
16 16  
17 17  
18 -
19 -
20 -
21 21  = 1.Introduction =
22 22  
23 23  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -24,33 +24,23 @@
24 24  
25 25  (((
26 26  (((
27 -(((
28 28  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
29 29  )))
30 -)))
31 31  
32 32  (((
33 -(((
34 34  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
35 35  )))
36 -)))
37 37  
38 38  (((
39 -(((
40 40  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
41 41  )))
42 -)))
43 43  
44 44  (((
45 -(((
46 46  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
47 -)))
48 48  
49 -(((
50 50  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
51 51  )))
52 52  )))
53 -)))
54 54  
55 55  [[image:1653267211009-519.png||height="419" width="724"]]
56 56  
... ... @@ -90,7 +90,7 @@
90 90  * Preamble detection.
91 91  * 127 dB Dynamic Range RSSI.
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
94 94  
95 95  == 1.3 Features ==
96 96  
... ... @@ -121,13 +121,9 @@
121 121  
122 122  (((
123 123  (((
124 -(((
125 125  v1.2: Add External Interrupt Pin.
126 -)))
127 127  
128 -(((
129 129  v1.0: Release
130 -)))
131 131  
132 132  
133 133  )))
... ... @@ -155,9 +155,7 @@
155 155  == 3.1 How it works? ==
156 156  
157 157  (((
158 -(((
159 159  The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
160 -)))
161 161  
162 162  
163 163  )))
... ... @@ -181,7 +181,7 @@
181 181  [[image:1653268227651-549.png||height="592" width="720"]]
182 182  
183 183  (((
184 -The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
162 +The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
185 185  )))
186 186  
187 187  (((
... ... @@ -233,15 +233,11 @@
233 233  
234 234  (((
235 235  (((
236 -(((
237 -There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
214 +There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
238 238  )))
239 -)))
240 240  
241 241  (((
242 -(((
243 243  (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
244 -)))
245 245  
246 246  
247 247  )))
... ... @@ -251,19 +251,19 @@
251 251  
252 252  To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
253 253  
254 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
255 -|=(% style="width: 110px;" %)(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
256 256  **AT Commands**
257 -)))|=(% style="width: 190px;" %)(((
231 +)))|(% style="width:305px" %)(((
258 258  **Description**
259 -)))|=(% style="width: 190px;" %)(((
233 +)))|(% style="width:346px" %)(((
260 260  **Example**
261 261  )))
262 -|(% style="width:110px" %)(((
236 +|(% style="width:128px" %)(((
263 263  AT+BAUDR
264 -)))|(% style="width:190px" %)(((
238 +)))|(% style="width:305px" %)(((
265 265  Set the baud rate (for RS485 connection). Default Value is: 9600.
266 -)))|(% style="width:190px" %)(((
240 +)))|(% style="width:346px" %)(((
267 267  (((
268 268  AT+BAUDR=9600
269 269  )))
... ... @@ -272,11 +272,11 @@
272 272  Options: (1200,2400,4800,14400,19200,115200)
273 273  )))
274 274  )))
275 -|(% style="width:110px" %)(((
249 +|(% style="width:128px" %)(((
276 276  AT+PARITY
277 -)))|(% style="width:190px" %)(((
251 +)))|(% style="width:305px" %)(((
278 278  Set UART parity (for RS485 connection)
279 -)))|(% style="width:190px" %)(((
253 +)))|(% style="width:346px" %)(((
280 280  (((
281 281  AT+PARITY=0
282 282  )))
... ... @@ -285,9 +285,9 @@
285 285  Option: 0: no parity, 1: odd parity, 2: even parity
286 286  )))
287 287  )))
288 -|(% style="width:110px" %)(((
262 +|(% style="width:128px" %)(((
289 289  AT+STOPBIT
290 -)))|(% style="width:190px" %)(((
264 +)))|(% style="width:305px" %)(((
291 291  (((
292 292  Set serial stopbit (for RS485 connection)
293 293  )))
... ... @@ -295,7 +295,7 @@
295 295  (((
296 296  
297 297  )))
298 -)))|(% style="width:190px" %)(((
272 +)))|(% style="width:346px" %)(((
299 299  (((
300 300  AT+STOPBIT=0 for 1bit
301 301  )))
... ... @@ -309,7 +309,6 @@
309 309  )))
310 310  )))
311 311  
312 -
313 313  === 3.3.2 Configure sensors ===
314 314  
315 315  (((
... ... @@ -318,23 +318,16 @@
318 318  )))
319 319  )))
320 320  
321 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
322 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
323 -|AT+CFGDEV|(% style="width:110px" %)(((
324 -(((
294 +(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
295 +|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
296 +|AT+CFGDEV|(% style="width:418px" %)(((
325 325  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
326 -)))
327 327  
328 -(((
329 329  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
330 -)))
331 331  
332 -(((
333 333  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
334 -)))
335 -)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
302 +)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
336 336  
337 -
338 338  === 3.3.3 Configure read commands for each sampling ===
339 339  
340 340  (((
... ... @@ -380,8 +380,8 @@
380 380  
381 381  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
382 382  
383 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
384 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
385 385  **AT+DATACUTx=a,b,c**
386 386  
387 387  * **a: length for the return of AT+COMMAND**
... ... @@ -450,7 +450,6 @@
450 450  
451 451  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
452 452  
453 -
454 454  1. PAYVER: Defined by AT+PAYVER
455 455  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
456 456  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -507,35 +507,33 @@
507 507  
508 508  == 3.4 Uplink Payload ==
509 509  
475 +(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
476 +|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
477 +|Value|(% style="width:120px" %)(((
478 +Battery(mV)
510 510  
511 -[[image:image-20220606110929-1.png]]
480 +&
512 512  
482 +Interrupt _Flag
483 +)))|(% style="width:116px" %)(((
484 +PAYLOAD_VER
485 +
486 +
487 +)))|(% style="width:386px" %)If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
488 +
513 513  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
514 514  
515 515  
516 516  == 3.5 Configure RS485-BL via AT or Downlink ==
517 517  
518 -(((
519 519  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
520 -)))
521 521  
522 -(((
523 523  There are two kinds of Commands:
524 -)))
525 525  
526 -* (((
527 -(% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
528 -)))
498 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
529 529  
530 -* (((
531 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
532 -)))
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
533 533  
534 -(((
535 -
536 -)))
537 -
538 -
539 539  === 3.5.1 Common Commands ===
540 540  
541 541  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
... ... @@ -552,284 +552,144 @@
552 552  
553 553  === 3.5.3 Sensor related commands ===
554 554  
518 +==== ====
555 555  
556 -
557 -
558 558  ==== **RS485 Debug Command** ====
559 559  
560 -(((
561 561  This command is used to configure the RS485 devices; they won’t be used during sampling.
562 -)))
563 563  
564 -* (((
565 -**AT Command**
566 -)))
524 +* **AT Command**
567 567  
568 568  (% class="box infomessage" %)
569 569  (((
570 -(((
571 571  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
572 572  )))
573 -)))
574 574  
575 -(((
576 576  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
577 -)))
578 578  
579 -* (((
580 -**Downlink Payload**
581 -)))
533 +* **Downlink Payload**
582 582  
583 -(((
584 584  Format: A8 MM NN XX XX XX XX YY
585 -)))
586 586  
587 -(((
588 588  Where:
589 -)))
590 590  
591 -* (((
592 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
593 -)))
594 -* (((
595 -NN: The length of RS485 command
596 -)))
597 -* (((
598 -XX XX XX XX: RS485 command total NN bytes
599 -)))
600 -* (((
601 -(((
602 -YY: How many bytes will be uplink from the return of this RS485 command,
603 -)))
539 +* MM: 1: add CRC-16/MODBUS ; 0: no CRC
540 +* NN: The length of RS485 command
541 +* XX XX XX XX: RS485 command total NN bytes
542 +* YY: How many bytes will be uplink from the return of this RS485 command,
543 +** if YY=0, RS485-LN will execute the downlink command without uplink;
544 +** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
545 +** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
604 604  
605 -* (((
606 -if YY=0, RS485-LN will execute the downlink command without uplink;
607 -)))
608 -* (((
609 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
610 -)))
611 -* (((
612 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
613 -)))
614 -)))
615 -
616 -(((
617 617  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
618 -)))
619 619  
620 -(((
621 621  To connect a Modbus Alarm with below commands.
622 -)))
623 623  
624 -* (((
625 -The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
626 -)))
551 +* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
627 627  
628 -* (((
629 -The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
630 -)))
553 +* The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
631 631  
632 -(((
633 633  So if user want to use downlink command to control to RS485 Alarm, he can use:
634 -)))
635 635  
636 -(((
637 637  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
638 -)))
639 639  
640 -(((
641 641  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
642 -)))
643 643  
644 -(((
645 645  A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
646 -)))
647 647  
648 -(((
649 -
650 -)))
651 651  
652 -(((
653 653  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
654 -)))
655 655  
656 -(((
657 657  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
658 -)))
659 659  
660 -(((
661 -
662 -)))
663 663  
664 -(((
665 665  RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:
666 -)))
667 667  
668 -(((
669 669   **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
670 -)))
671 671  
672 -(((
673 673   [[image:1654159460680-153.png]]
674 -)))
675 675  
676 676  
677 677  
678 -
679 679  ==== **Set Payload version** ====
680 680  
681 -(((
682 682  This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
683 -)))
684 684  
685 -* (((
686 -**AT Command:**
687 -)))
581 +* **AT Command:**
688 688  
689 689  (% class="box infomessage" %)
690 690  (((
691 -(((
692 692  **AT+PAYVER: Set PAYVER field = 1**
693 693  )))
694 -)))
695 695  
696 -* (((
697 -**Downlink Payload:**
698 -)))
588 +* **Downlink Payload:**
699 699  
700 -(((
701 701  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
702 -)))
703 703  
704 -(((
705 705  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
706 -)))
707 707  
708 708  
709 709  
710 -
711 711  ==== **Set RS485 Sampling Commands** ====
712 712  
713 -(((
714 714  AT+COMMANDx or AT+DATACUTx
715 -)))
716 716  
717 -(((
718 718  These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
719 -)))
720 720  
721 -(((
722 -
723 -)))
724 724  
725 -* (((
726 -**AT Command:**
727 -)))
603 +* **AT Command:**
728 728  
729 729  (% class="box infomessage" %)
730 730  (((
731 -(((
732 732  **AT+COMMANDx: Configure RS485 read command to sensor.**
733 733  )))
734 -)))
735 735  
736 736  (% class="box infomessage" %)
737 737  (((
738 -(((
739 739  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
740 740  )))
741 -)))
742 742  
743 -(((
744 -
745 -)))
746 746  
747 -* (((
748 -**Downlink Payload:**
749 -)))
616 +* **Downlink Payload:**
750 750  
751 -(((
752 752  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
753 -)))
754 754  
755 -(((
756 756  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
757 -)))
758 758  
759 -(((
760 760  Format: AF MM NN LL XX XX XX XX YY
761 -)))
762 762  
763 -(((
764 764  Where:
765 -)))
766 766  
767 -* (((
768 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
769 -)))
770 -* (((
771 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
772 -)))
773 -* (((
774 -LL:  The length of AT+COMMAND or AT+DATACUT command
775 -)))
776 -* (((
777 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
778 -)))
779 -* (((
780 -YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
781 -)))
626 +* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
627 +* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
628 +* LL:  The length of AT+COMMAND or AT+DATACUT command
629 +* XX XX XX XX: AT+COMMAND or AT+DATACUT command
630 +* YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
782 782  
783 -(((
784 784  **Example:**
785 -)))
786 786  
787 -(((
788 788  (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
789 -)))
790 790  
791 -(((
792 792  (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
793 -)))
794 794  
795 -(((
796 796  (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
797 -)))
798 798  
799 799  
800 800  
801 -
802 802  ==== **Fast command to handle MODBUS device** ====
803 803  
804 -(((
805 805  AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
806 -)))
807 807  
808 -(((
809 809  This command is valid since v1.3 firmware version
810 -)))
811 811  
812 -(((
813 813  AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
814 -)))
815 815  
816 -(((
817 -
818 -)))
819 819  
820 -(((
821 821  **Example:**
822 -)))
823 823  
824 -* (((
825 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
826 -)))
827 -* (((
828 -AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
829 -)))
830 -* (((
831 -AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
832 -)))
653 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
654 +* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
655 +* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
833 833  
834 834  [[image:image-20220602165351-6.png]]
835 835  
... ... @@ -837,656 +837,144 @@
837 837  
838 838  
839 839  
840 -
841 841  ==== **RS485 command timeout** ====
842 842  
843 -(((
844 844  Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
845 -)))
846 846  
847 -(((
848 848  Default value: 0, range:  0 ~~ 65 seconds
849 -)))
850 850  
851 -* (((
852 -**AT Command:**
853 -)))
669 +* **AT Command:**
854 854  
855 855  (% class="box infomessage" %)
856 856  (((
857 -(((
858 858  **AT+CMDDLaa=hex(bb cc)*1000**
859 859  )))
860 -)))
861 861  
862 -(((
863 863  **Example:**
864 -)))
865 865  
866 -(((
867 867  **AT+CMDDL1=1000** to send the open time to 1000ms
868 -)))
869 869  
870 -(((
871 -
872 -)))
873 873  
874 -* (((
875 -**Downlink Payload:**
876 -)))
681 +* **Downlink Payload:**
877 877  
878 -(((
879 879  **0x AA aa bb cc**
880 -)))
881 881  
882 -(((
883 883  Same as: AT+CMDDLaa=hex(bb cc)*1000
884 -)))
885 885  
886 -(((
887 887   **Example:**
888 -)))
889 889  
890 -(((
891 891   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
892 -)))
893 893  
894 894  
895 895  
896 -
897 897  ==== **Uplink payload mode** ====
898 898  
899 -(((
900 900  Define to use one uplink or multiple uplinks for the sampling.
901 -)))
902 902  
903 -(((
904 904  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
905 -)))
906 906  
907 -* (((
908 -**AT Command:**
909 -)))
699 +* **AT Command:**
910 910  
911 911  (% class="box infomessage" %)
912 912  (((
913 -(((
914 914  **AT+DATAUP=0**
915 915  )))
916 -)))
917 917  
918 918  (% class="box infomessage" %)
919 919  (((
920 -(((
921 921  **AT+DATAUP=1**
922 922  )))
923 -)))
924 924  
925 -(((
926 -
927 -)))
928 928  
929 -* (((
930 -**Downlink Payload:**
931 -)))
712 +* **Downlink Payload:**
932 932  
933 -(((
934 934  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
935 -)))
936 936  
937 -(((
938 938  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
939 -)))
940 940  
941 941  
942 942  
943 -
944 944  ==== **Manually trigger an Uplink** ====
945 945  
946 -(((
947 947  Ask device to send an uplink immediately.
948 -)))
949 949  
950 -* (((
951 -**AT Command:**
952 -)))
724 +* **AT Command:**
953 953  
954 -(((
955 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
956 -)))
726 +No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
957 957  
958 -(((
959 -
960 -)))
961 961  
962 -* (((
963 -**Downlink Payload:**
964 -)))
729 +* **Downlink Payload:**
965 965  
966 -(((
967 967  **0x08 FF**, RS485-LN will immediately send an uplink.
968 -)))
969 969  
970 970  
734 +==== ====
971 971  
972 -
973 973  ==== **Clear RS485 Command** ====
974 974  
975 -(((
976 976  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
977 -)))
978 978  
979 -* (((
980 -**AT Command:**
981 -)))
740 +* **AT Command:**
982 982  
983 -(((
984 984  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
985 -)))
986 986  
987 -(((
988 988  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
989 -)))
990 990  
991 -(((
992 -Example screen shot after clear all RS485 commands. 
993 -)))
746 +Example screen shot after clear all RS485 commands.
994 994  
995 -(((
996 -
997 -)))
998 998  
999 -(((
1000 1000  The uplink screen shot is:
1001 -)))
1002 1002  
1003 -[[image:1654160691922-496.png]]
751 +[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
1004 1004  
1005 1005  
1006 -* (((
1007 -**Downlink Payload:**
1008 -)))
754 +* **Downlink Payload:**
1009 1009  
1010 -(((
1011 1011  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1012 -)))
1013 1013  
1014 1014  
1015 1015  
1016 -
1017 1017  ==== **Set Serial Communication Parameters** ====
1018 1018  
1019 -(((
1020 1020  Set the Rs485 serial communication parameters:
1021 -)))
1022 1022  
1023 -* (((
1024 -**AT Command:**
1025 -)))
764 +* **AT Command:**
1026 1026  
1027 -(((
1028 1028  Set Baud Rate:
1029 -)))
1030 1030  
1031 1031  (% class="box infomessage" %)
1032 1032  (((
1033 -(((
1034 1034  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1035 1035  )))
1036 -)))
1037 1037  
1038 -(((
1039 1039  Set UART Parity
1040 -)))
1041 1041  
1042 1042  (% class="box infomessage" %)
1043 1043  (((
1044 -(((
1045 1045  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1046 1046  )))
1047 -)))
1048 1048  
1049 -(((
1050 1050  Set STOPBIT
1051 -)))
1052 1052  
1053 1053  (% class="box infomessage" %)
1054 1054  (((
1055 -(((
1056 1056  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1057 1057  )))
1058 -)))
1059 1059  
1060 -(((
1061 -
1062 -)))
1063 1063  
1064 -* (((
1065 -**Downlink Payload:**
1066 -)))
788 +* **Downlink Payload:**
1067 1067  
1068 -(((
1069 1069  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1070 -)))
1071 1071  
1072 -(((
1073 1073  **Example:**
1074 -)))
1075 1075  
1076 -* (((
1077 -A7 01 00 60   same as AT+BAUDR=9600
1078 -)))
1079 -* (((
1080 -A7 01 04 80  same as AT+BAUDR=115200
1081 -)))
794 +* A7 01 00 60   same as AT+BAUDR=9600
795 +* A7 01 04 80  same as AT+BAUDR=115200
1082 1082  
1083 -(((
1084 1084  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1085 -)))
1086 1086  
1087 -(((
1088 1088  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1089 -)))
1090 1090  
1091 1091  
1092 1092  
1093 -
1094 -== 3.6 Listening mode for RS485 network ==
1095 -
1096 -(((
1097 -This feature support since firmware v1.4
1098 -)))
1099 -
1100 -(((
1101 -RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
1102 -)))
1103 -
1104 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
1105 -
1106 -(((
1107 -To enable the listening mode, use can run the command AT+RXMODE.
1108 -)))
1109 -
1110 -(((
1111 -
1112 -)))
1113 -
1114 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1115 -|=(% style="width: 100px;" %)(((
1116 -**Command example**
1117 -)))|=(% style="width: 400px;" %)(((
1118 -**Function**
1119 -)))
1120 -|(% style="width:100px" %)(((
1121 -AT+RXMODE=1,10
1122 -)))|(% style="width:400px" %)(((
1123 -Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
1124 -)))
1125 -|(% style="width:100px" %)(((
1126 -AT+RXMODE=2,500
1127 -)))|(% style="width:400px" %)(((
1128 -Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
1129 -)))
1130 -|(% style="width:100px" %)(((
1131 -AT+RXMODE=0,0
1132 -)))|(% style="width:400px" %)(((
1133 -Disable listening mode. This is the default settings.
1134 -)))
1135 -|(% style="width:100px" %)(((
1136 -
1137 -)))|(% style="width:400px" %)(((
1138 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1139 -)))
1140 -
1141 -(((
1142 -**Downlink Command:**
1143 -)))
1144 -
1145 -(((
1146 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1147 -)))
1148 -
1149 -(((
1150 -
1151 -)))
1152 -
1153 -(((
1154 -**Example**:
1155 -)))
1156 -
1157 -(((
1158 -The RS485-LN is set to AT+RXMODE=2,1000
1159 -)))
1160 -
1161 -(((
1162 -There is a two Modbus commands in the RS485 network as below:
1163 -)))
1164 -
1165 -(((
1166 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1167 -)))
1168 -
1169 -(((
1170 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1171 -)))
1172 -
1173 -(((
1174 -RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1175 -)))
1176 -
1177 -(((
1178 -[[image:image-20220602171200-9.png]]
1179 -)))
1180 -
1181 -(((
1182 -
1183 -)))
1184 -
1185 -(((
1186 -(((
1187 -(% style="color:red" %)Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.
1188 -)))
1189 -)))
1190 -
1191 -
1192 -== 3.7 Buttons ==
1193 -
1194 -
1195 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1196 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1197 -|(% style="width:50px" %)**ACT**|(% style="width:350px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1198 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1199 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1200 -
1201 -
1202 -== 3.8 LEDs ==
1203 -
1204 -
1205 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1206 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1207 -|**PWR**|Always on if there is power
1208 -|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
1209 -
1210 -
1211 -= 4. Case Study =
1212 -
1213 -User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
1214 -
1215 -
1216 -= 5. Use AT Command =
1217 -
1218 -== 5.1 Access AT Command ==
1219 -
1220 -(((
1221 -RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1222 -)))
1223 -
1224 -[[image:1654162355560-817.png]]
1225 -
1226 -
1227 -(((
1228 -In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1229 -)))
1230 -
1231 -[[image:1654162368066-342.png]]
1232 -
1233 -
1234 -(((
1235 -More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1236 -)))
1237 -
1238 -
1239 -
1240 -== 5.2 Common AT Command Sequence ==
1241 -
1242 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1243 -
1244 -If device has not joined network yet:
1245 -
1246 -(% class="box infomessage" %)
1247 -(((
1248 -**AT+FDR**
1249 -)))
1250 -
1251 -(% class="box infomessage" %)
1252 -(((
1253 -**AT+NJM=0**
1254 -)))
1255 -
1256 -(% class="box infomessage" %)
1257 -(((
1258 -**ATZ**
1259 -)))
1260 -
1261 -
1262 -(((
1263 -If device already joined network:
1264 -)))
1265 -
1266 -(% class="box infomessage" %)
1267 -(((
1268 -**AT+NJM=0**
1269 -)))
1270 -
1271 -(% class="box infomessage" %)
1272 -(((
1273 -**ATZ**
1274 -)))
1275 -
1276 -
1277 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1278 -
1279 -
1280 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1281 -
1282 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1283 -
1284 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
1285 -
1286 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1287 -
1288 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1289 -
1290 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
1291 -
1292 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1293 -
1294 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1295 -
1296 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1297 -
1298 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1299 -
1300 -
1301 -(% style="color:red" %)**Note:**
1302 -
1303 -(((
1304 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1305 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1306 -3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1307 -4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1308 -)))
1309 -
1310 -[[image:1654162478620-421.png]]
1311 -
1312 -
1313 -= 6. FAQ =
1314 -
1315 -== 6.1 How to upgrade the image? ==
1316 -
1317 -(((
1318 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1319 -)))
1320 -
1321 -* (((
1322 -Support new features
1323 -)))
1324 -* (((
1325 -For bug fix
1326 -)))
1327 -* (((
1328 -Change LoRaWAN bands.
1329 -)))
1330 -
1331 -(((
1332 -Below shows the hardware connection for how to upload an image to RS485-LN:
1333 -)))
1334 -
1335 -[[image:1654162535040-878.png]]
1336 -
1337 -(((
1338 -**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1339 -)))
1340 -
1341 -(((
1342 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1343 -)))
1344 -
1345 -(((
1346 -**Step3: **Open flashloader; choose the correct COM port to update.
1347 -)))
1348 -
1349 -(((
1350 -(((
1351 -(((
1352 -(% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
1353 -)))
1354 -)))
1355 -)))
1356 -
1357 -
1358 -[[image:image-20220602175818-12.png]]
1359 -
1360 -
1361 -[[image:image-20220602175848-13.png]]
1362 -
1363 -
1364 -[[image:image-20220602175912-14.png]]
1365 -
1366 -
1367 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1368 -
1369 -[[image:image-20220602175638-10.png]]
1370 -
1371 -
1372 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
1373 -
1374 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1375 -
1376 -
1377 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1378 -
1379 -The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1380 -
1381 -
1382 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1383 -
1384 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1385 -
1386 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1387 -
1388 -
1389 -= 7. Trouble Shooting =
1390 -
1391 -== 7.1 Downlink doesn’t work, how to solve it? ==
1392 -
1393 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1394 -
1395 -
1396 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1397 -
1398 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1399 -
1400 -
1401 -= 8. Order Info =
1402 -
1403 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1404 -
1405 -(% style="color:blue" %)**XXX:**
1406 -
1407 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1408 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1409 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1410 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1411 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1412 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1413 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1414 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1415 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1416 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1417 -
1418 -= 9.Packing Info =
1419 -
1420 -
1421 -**Package Includes**:
1422 -
1423 -* RS485-LN x 1
1424 -* Stick Antenna for LoRa RF part x 1
1425 -* Program cable x 1
1426 -
1427 -**Dimension and weight**:
1428 -
1429 -* Device Size: 13.5 x 7 x 3 cm
1430 -* Device Weight: 105g
1431 -* Package Size / pcs : 14.5 x 8 x 5 cm
1432 -* Weight / pcs : 170g
1433 -
1434 -= 10. FCC Caution for RS485LN-US915 =
1435 -
1436 -(((
1437 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1438 -)))
1439 -
1440 -(((
1441 -This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
1442 -)))
1443 -
1444 -(((
1445 -
1446 -)))
1447 -
1448 -(((
1449 -**IMPORTANT NOTE:**
1450 -)))
1451 -
1452 -(((
1453 -**Note: **This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1454 -)))
1455 -
1456 -(((
1457 -—Reorient or relocate the receiving antenna.
1458 -)))
1459 -
1460 -(((
1461 -—Increase the separation between the equipment and receiver.
1462 -)))
1463 -
1464 -(((
1465 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1466 -)))
1467 -
1468 -(((
1469 -—Consult the dealer or an experienced radio/TV technician for help.
1470 -)))
1471 -
1472 -(((
1473 -
1474 -)))
1475 -
1476 -(((
1477 -**FCC Radiation Exposure Statement:**
1478 -)))
1479 -
1480 -(((
1481 -This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
1482 -)))
1483 -
1484 -
1485 -= 11. Support =
1486 -
1487 -* (((
1488 -Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1489 -)))
1490 -* (((
1491 -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:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
1492 -)))
803 +==== ====
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