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... ... @@ -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 ==
... ... @@ -80,9 +80,8 @@
80 80  * Preamble detection.
81 81  * 127 dB Dynamic Range RSSI.
82 82  * Automatic RF Sense and CAD with ultra-fast AFC.
83 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
84 84  
85 -
86 86  == 1.3 Features ==
87 87  
88 88  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -94,7 +94,6 @@
94 94  * Support Modbus protocol
95 95  * Support Interrupt uplink (Since hardware version v1.2)
96 96  
97 -
98 98  == 1.4 Applications ==
99 99  
100 100  * Smart Buildings & Home Automation
... ... @@ -104,7 +104,6 @@
104 104  * Smart Cities
105 105  * Smart Factory
106 106  
107 -
108 108  == 1.5 Firmware Change log ==
109 109  
110 110  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -168,7 +168,7 @@
168 168  [[image:1653268227651-549.png||height="592" width="720"]]
169 169  
170 170  (((
171 -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:
172 172  )))
173 173  
174 174  (((
... ... @@ -220,7 +220,7 @@
220 220  
221 221  (((
222 222  (((
223 -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.
224 224  )))
225 225  
226 226  (((
... ... @@ -292,8 +292,6 @@
292 292  )))
293 293  )))
294 294  
295 -
296 -
297 297  === 3.3.2 Configure sensors ===
298 298  
299 299  (((
... ... @@ -312,8 +312,6 @@
312 312  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
313 313  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
314 314  
315 -
316 -
317 317  === 3.3.3 Configure read commands for each sampling ===
318 318  
319 319  (((
... ... @@ -474,77 +474,125 @@
474 474  
475 475  
476 476  
477 -=== 3.3.6 Uplink on Interrupt ===
464 +1.
465 +11.
466 +111. Uplink on Interrupt
478 478  
479 -RS485-LN support external Interrupt uplink since hardware v1.2 release.
468 +Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
480 480  
481 -[[image:1654157342174-798.png]]
470 +AT+INTMOD=0  Disable Interrupt
482 482  
483 -Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
472 +AT+INTMOD=1  Interrupt trigger by rising or falling edge.
484 484  
474 +AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
485 485  
486 -== 3.4 Uplink Payload ==
476 +AT+INTMOD=3  Interrupt trigger by rising edge.
487 487  
488 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
489 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
490 -|Value|(% style="width:120px" %)(((
478 +
479 +1.
480 +11. Uplink Payload
481 +
482 +|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
483 +|Value|(((
491 491  Battery(mV)
492 492  
493 493  &
494 494  
495 495  Interrupt _Flag
496 -)))|(% style="width:116px" %)(((
489 +)))|(((
497 497  PAYLOAD_VER
498 498  
499 499  
500 -)))|(% 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.
493 +)))|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.
501 501  
502 502  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
503 503  
504 504  
505 -== 3.5 Configure RS485-BL via AT or Downlink ==
498 +function Decoder(bytes, port) {
506 506  
507 -User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
500 +~/~/Payload Formats of RS485-BL Deceive
508 508  
502 +return {
503 +
504 + ~/~/Battery,units:V
505 +
506 + BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
507 +
508 + ~/~/GPIO_EXTI 
509 +
510 + EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
511 +
512 + ~/~/payload of version
513 +
514 + Pay_ver:bytes[2],
515 +
516 + };
517 +
518 + }
519 +
520 +
521 +
522 +
523 +
524 +
525 +
526 +TTN V3 uplink screen shot.
527 +
528 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
529 +
530 +1.
531 +11. Configure RS485-BL via AT or Downlink
532 +
533 +User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
534 +
509 509  There are two kinds of Commands:
510 510  
511 -* (% 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]]
537 +* **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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
512 512  
513 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
539 +* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
514 514  
515 -=== 3.5.1 Common Commands ===
541 +1.
542 +11.
543 +111. Common Commands:
516 516  
517 -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]]
545 +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: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
518 518  
519 519  
520 -=== 3.5.2 Sensor related commands ===
548 +1.
549 +11.
550 +111. Sensor related commands:
521 521  
522 -Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
552 +==== Choose Device Type (RS485 or TTL) ====
523 523  
524 -[[image:image-20220602163333-5.png||height="263" width="1160"]]
554 +RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
525 525  
526 -The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
556 +* AT Command
527 527  
558 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
528 528  
529 -=== 3.5.3 Sensor related commands ===
560 +**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
530 530  
531 531  
563 +* Downlink Payload
532 532  
533 -==== **RS485 Debug Command** ====
565 +**0A aa**     à same as AT+MOD=aa
534 534  
535 -This command is used to configure the RS485 devices; they won’t be used during sampling.
536 536  
537 -* **AT Command**
538 538  
539 -(% class="box infomessage" %)
540 -(((
541 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
542 -)))
569 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
543 543  
544 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
571 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
545 545  
546 -* **Downlink Payload**
573 +* AT Command
547 547  
575 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
576 +
577 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
578 +
579 +
580 +
581 +* Downlink Payload
582 +
548 548  Format: A8 MM NN XX XX XX XX YY
549 549  
550 550  Where:
... ... @@ -552,12 +552,9 @@
552 552  * MM: 1: add CRC-16/MODBUS ; 0: no CRC
553 553  * NN: The length of RS485 command
554 554  * XX XX XX XX: RS485 command total NN bytes
555 -* YY: How many bytes will be uplink from the return of this RS485 command,
556 -** if YY=0, RS485-LN will execute the downlink command without uplink;
557 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
558 -** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
590 +* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
559 559  
560 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
592 +**Example 1:**
561 561  
562 562  To connect a Modbus Alarm with below commands.
563 563  
... ... @@ -567,190 +567,184 @@
567 567  
568 568  So if user want to use downlink command to control to RS485 Alarm, he can use:
569 569  
570 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
602 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
571 571  
572 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
604 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
573 573  
574 574  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.
575 575  
576 576  
577 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
609 +**Example 2:**
578 578  
579 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
611 +Check TTL Sensor return:
580 580  
613 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
581 581  
582 -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:
583 583  
584 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
585 585  
586 - [[image:1654159460680-153.png]]
587 587  
618 +==== Set Payload version ====
588 588  
589 -
590 -==== **Set Payload version** ====
591 -
592 592  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.
593 593  
594 -* **AT Command:**
622 +* AT Command:
595 595  
596 -(% class="box infomessage" %)
597 -(((
598 -**AT+PAYVER: Set PAYVER field = 1**
599 -)))
624 +AT+PAYVER: Set PAYVER field = 1
600 600  
601 -* **Downlink Payload:**
602 602  
603 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
627 +* Downlink Payload:
604 604  
605 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
629 +0xAE 01   à Set PAYVER field =  0x01
606 606  
631 +0xAE 0F   à Set PAYVER field =  0x0F
607 607  
608 608  
609 -==== **Set RS485 Sampling Commands** ====
634 +==== Set RS485 Sampling Commands ====
610 610  
611 -AT+COMMANDx or AT+DATACUTx
636 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
612 612  
613 -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"]].
638 +These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
614 614  
615 615  
616 -* **AT Command:**
641 +* AT Command:
617 617  
618 -(% class="box infomessage" %)
619 -(((
620 -**AT+COMMANDx: Configure RS485 read command to sensor.**
621 -)))
643 +AT+COMMANDx: Configure RS485 read command to sensor.
622 622  
623 -(% class="box infomessage" %)
624 -(((
625 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
626 -)))
645 +AT+DATACUTx: Configure how to handle return from RS485 devices.
627 627  
647 +AT+SEARCHx: Configure search command
628 628  
629 -* **Downlink Payload:**
630 630  
631 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
650 +* Downlink Payload:
632 632  
633 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
652 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
634 634  
654 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
655 +
635 635  Format: AF MM NN LL XX XX XX XX YY
636 636  
637 637  Where:
638 638  
639 639  * MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
640 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
641 -* LL:  The length of AT+COMMAND or AT+DATACUT command
661 +* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
662 +* LL: The length of AT+COMMAND or AT+DATACUT command
642 642  * XX XX XX XX: AT+COMMAND or AT+DATACUT command
643 -* 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.
664 +* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
644 644  
645 -**Example:**
666 +Example:
646 646  
647 -(% 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
668 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
648 648  
649 -(% 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**
670 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
650 650  
651 -(% 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**
672 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
652 652  
653 653  
675 +0xAB downlink command can be used for set AT+SEARCHx
654 654  
655 -==== **Fast command to handle MODBUS device** ====
677 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
656 656  
679 +* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
680 +* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
681 +
682 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
683 +
684 +
685 +==== Fast command to handle MODBUS device ====
686 +
657 657  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]].
658 658  
659 659  This command is valid since v1.3 firmware version
660 660  
661 -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.
662 662  
692 +AT+MBFUN has only two value:
663 663  
664 -**Example:**
694 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
665 665  
666 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
667 -* 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.
668 -* 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.
696 +AT+MBFUN=1, device 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.
669 669  
670 -[[image:image-20220602165351-6.png]]
698 +* AT+MBFUN=0: Disable Modbus fast reading.
671 671  
672 -[[image:image-20220602165351-7.png]]
700 +Example:
673 673  
702 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
703 +* 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.
704 +* 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.
674 674  
706 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
675 675  
676 -==== **RS485 command timeout** ====
677 677  
678 -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.
709 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
679 679  
680 -Default value: 0, range:  0 ~~ 65 seconds
681 681  
682 -* **AT Command:**
712 +* Downlink Commands:
683 683  
684 -(% class="box infomessage" %)
685 -(((
686 -**AT+CMDDLaa=hex(bb cc)*1000**
687 -)))
714 +A9 aa -à Same as AT+MBFUN=aa
688 688  
689 -**Example:**
690 690  
691 -**AT+CMDDL1=1000** to send the open time to 1000ms
717 +==== RS485 command timeout ====
692 692  
719 +Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
693 693  
694 -* **Downlink Payload:**
721 +Default value: 0, range:  0 ~~ 5 seconds
695 695  
696 -**0x AA aa bb cc**
697 697  
698 -Same as: AT+CMDDLaa=hex(bb cc)*1000
724 +* AT Command:
699 699  
700 - **Example:**
726 +AT+CMDDLaa=hex(bb cc)
701 701  
702 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
728 +Example:
703 703  
730 +**AT+CMDDL1=1000** to send the open time to 1000ms
704 704  
705 705  
706 -==== **Uplink payload mode** ====
733 +* Downlink Payload:
707 707  
708 -Define to use one uplink or multiple uplinks for the sampling.
735 +0x AA aa bb cc
709 709  
710 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
737 +Same as: AT+CMDDLaa=hex(bb cc)
711 711  
712 -* **AT Command:**
739 + Example:
713 713  
714 -(% class="box infomessage" %)
715 -(((
716 -**AT+DATAUP=0**
717 -)))
741 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
718 718  
719 -(% class="box infomessage" %)
720 -(((
721 -**AT+DATAUP=1**
722 -)))
723 723  
744 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
724 724  
725 -* **Downlink Payload:**
746 +Define to use one uplink or multiple uplinks for the sampling.
726 726  
727 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
748 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
728 728  
729 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
750 +* AT Command:
730 730  
752 +AT+DATAUP=0
731 731  
754 +AT+DATAUP=1
732 732  
733 -==== **Manually trigger an Uplink** ====
734 734  
735 -Ask device to send an uplink immediately.
757 +* Downlink Payload:
736 736  
737 -* **AT Command:**
759 +0xAD 00   à Same as AT+DATAUP=0
738 738  
739 -No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
761 +0xAD 01   à Same as AT+DATAUP=1
740 740  
741 741  
742 -* **Downlink Payload:**
764 +==== Manually trigger an Uplink ====
743 743  
744 -**0x08 FF**, RS485-LN will immediately send an uplink.
766 +Ask device to send an uplink immediately.
745 745  
768 +* Downlink Payload:
746 746  
770 +0x08 FF, RS485-BL will immediately send an uplink.
747 747  
748 -==== **Clear RS485 Command** ====
749 749  
773 +==== Clear RS485 Command ====
774 +
750 750  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
751 751  
752 -* **AT Command:**
753 753  
778 +* AT Command:
779 +
754 754  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
755 755  
756 756  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
... ... @@ -758,50 +758,43 @@
758 758  Example screen shot after clear all RS485 commands. 
759 759  
760 760  
787 +
761 761  The uplink screen shot is:
762 762  
763 -[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
790 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
764 764  
765 765  
766 -* **Downlink Payload:**
793 +* Downlink Payload:
767 767  
768 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
795 +0x09 aa bb same as AT+CMDEAR=aa,bb
769 769  
770 770  
798 +==== Set Serial Communication Parameters ====
771 771  
772 -==== **Set Serial Communication Parameters** ====
773 -
774 774  Set the Rs485 serial communication parameters:
775 775  
776 -* **AT Command:**
802 +* AT Command:
777 777  
778 778  Set Baud Rate:
779 779  
780 -(% class="box infomessage" %)
781 -(((
782 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
783 -)))
806 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
784 784  
785 -Set UART Parity
786 786  
787 -(% class="box infomessage" %)
788 -(((
789 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
790 -)))
809 +Set UART parity
791 791  
811 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
812 +
813 +
792 792  Set STOPBIT
793 793  
794 -(% class="box infomessage" %)
795 -(((
796 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
797 -)))
816 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
798 798  
799 799  
800 -* **Downlink Payload:**
819 +* Downlink Payload:
801 801  
802 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
821 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
803 803  
804 -**Example:**
823 +Example:
805 805  
806 806  * A7 01 00 60   same as AT+BAUDR=9600
807 807  * A7 01 04 80  same as AT+BAUDR=115200
... ... @@ -811,283 +811,287 @@
811 811  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
812 812  
813 813  
814 -== 3.6 Listening mode for RS485 network ==
833 +==== Control output power duration ====
815 815  
816 -This feature support since firmware v1.4
835 +User can set the output power duration before each sampling.
817 817  
818 -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.
837 +* AT Command:
819 819  
820 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
839 +Example:
821 821  
822 -To enable the listening mode, use can run the command AT+RXMODE.
841 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
823 823  
843 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
824 824  
825 -(% border="1" style="background-color:#ffffcc; width:500px" %)
826 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
827 -|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)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.
828 -|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)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
829 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
830 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
831 831  
832 -**Downlink Command:**
846 +* LoRaWAN Downlink Command:
833 833  
834 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
848 +07 01 aa bb  Same as AT+5VT=(aa bb)
835 835  
850 +07 02 aa bb  Same as AT+3V3T=(aa bb)
836 836  
837 -**Example**:
838 838  
839 -The RS485-LN is set to AT+RXMODE=2,1000
840 840  
841 -There is a two Modbus commands in the RS485 network as below:
842 842  
843 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
855 +1.
856 +11. Buttons
844 844  
845 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
858 +|**Button**|**Feature**
859 +|**RST**|Reboot RS485-BL
846 846  
847 -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
861 +1.
862 +11. +3V3 Output
848 848  
849 -[[image:image-20220602171200-9.png]]
864 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
850 850  
866 +The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
851 851  
852 -(% 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.
853 853  
869 +The +3V3 output time can be controlled by AT Command.
854 854  
855 -== 3.7 Buttons ==
871 +**AT+3V3T=1000**
856 856  
873 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
857 857  
858 -(% border="1" style="background-color:#f7faff; width:500px" %)
859 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
860 -|**ACT**|(% style="width:1420px" %)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**
861 -|**RST**|(% style="width:1420px" %)Reboot RS485
862 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>path:#upgrade_image]]
863 863  
876 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
864 864  
865 -== 3.8 LEDs ==
866 866  
867 -(% border="1" style="background-color:#f7faff; width:500px" %)
868 -|=**LEDs**|=**Feature**
869 -|**PWR**|Always on if there is power
870 -|**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.
879 +1.
880 +11. +5V Output
871 871  
882 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
872 872  
873 -= 4. Case Study =
884 +The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
874 874  
875 -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]]
876 876  
887 +The 5V output time can be controlled by AT Command.
877 877  
878 -= 5. Use AT Command =
889 +**AT+5VT=1000**
879 879  
880 -== 5.1 Access AT Command ==
891 +Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
881 881  
882 -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.
883 883  
884 -[[image:1654162355560-817.png]]
894 +By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
885 885  
886 886  
887 -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:
888 888  
889 -[[image:1654162368066-342.png]]
890 890  
899 +1.
900 +11. LEDs
891 891  
892 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
902 +|**LEDs**|**Feature**
903 +|**LED1**|Blink when device transmit a packet.
893 893  
905 +1.
906 +11. Switch Jumper
894 894  
895 -== 5.2 Common AT Command Sequence ==
908 +|**Switch Jumper**|**Feature**
909 +|**SW1**|(((
910 +ISP position: Upgrade firmware via UART
896 896  
897 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
898 -
899 -If device has not joined network yet:
900 -
901 -(% class="box infomessage" %)
902 -(((
903 -**AT+FDR**
912 +Flash position: Configure device, check running status.
904 904  )))
914 +|**SW2**|(((
915 +5V position: set to compatible with 5v I/O.
905 905  
906 -(% class="box infomessage" %)
907 -(((
908 -**AT+NJM=0**
917 +3.3v position: set to compatible with 3.3v I/O.,
909 909  )))
910 910  
911 -(% class="box infomessage" %)
912 -(((
913 -**ATZ**
914 -)))
920 ++3.3V: is always ON
915 915  
922 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
916 916  
917 -If device already joined network:
924 +1. Case Study
918 918  
919 -(% class="box infomessage" %)
920 -(((
921 -**AT+NJM=0**
922 -)))
926 +User can check this URL for some case studies.
923 923  
924 -(% class="box infomessage" %)
925 -(((
926 -**ATZ**
927 -)))
928 +[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
928 928  
929 929  
930 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
931 931  
932 932  
933 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
933 +1. Use AT Command
934 +11. Access AT Command
934 934  
935 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
936 +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.
936 936  
937 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
938 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
938 938  
939 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
940 940  
941 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
941 +In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
942 942  
943 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
943 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
944 944  
945 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
946 946  
947 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
948 948  
949 -(% 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.
947 +More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
950 950  
951 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
952 952  
953 953  
954 -(% style="color:red" %)**Note:**
951 +1.
952 +11. Common AT Command Sequence
953 +111. Multi-channel ABP mode (Use with SX1301/LG308)
955 955  
956 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
957 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
958 -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.
959 -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
955 +If device has not joined network yet:
960 960  
961 -[[image:1654162478620-421.png]]
957 +AT+FDR
962 962  
959 +AT+NJM=0
963 963  
964 -= 6. FAQ =
961 +ATZ
965 965  
966 -== 6.1 How to upgrade the image? ==
967 967  
968 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
964 +If device already joined network:
969 969  
970 -* Support new features
971 -* For bug fix
972 -* Change LoRaWAN bands.
966 +AT+NJM=0
973 973  
974 -Below shows the hardware connection for how to upload an image to RS485-LN:
968 +ATZ
975 975  
976 -[[image:1654162535040-878.png]]
970 +1.
971 +11.
972 +111. Single-channel ABP mode (Use with LG01/LG02)
977 977  
978 -**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]].
974 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
979 979  
980 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
976 +AT+NJM=0 Set to ABP mode
981 981  
982 -**Step3: **Open flashloader; choose the correct COM port to update.
978 +AT+ADR=0 Set the Adaptive Data Rate Off
983 983  
984 -(% 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.
980 +AT+DR=5  Set Data Rate
985 985  
982 +AT+TDC=60000  Set transmit interval to 60 seconds
986 986  
987 -[[image:image-20220602175818-12.png]]
984 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
988 988  
986 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
989 989  
990 -[[image:image-20220602175848-13.png]]
988 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
991 991  
990 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
992 992  
993 -[[image:image-20220602175912-14.png]]
992 +ATZ          Reset MCU
994 994  
994 +**Note:**
995 995  
996 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
996 +1. Make sure the device is set to ABP mode in the IoT Server.
997 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
998 +1. 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.
999 +1. 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
997 997  
998 -[[image:image-20220602175638-10.png]]
1001 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
999 999  
1000 1000  
1001 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
1004 +1. FAQ
1005 +11. How to upgrade the image?
1002 1002  
1003 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1007 +The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1004 1004  
1009 +* Support new features
1010 +* For bug fix
1011 +* Change LoRaWAN bands.
1005 1005  
1006 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1013 +Below shows the hardware connection for how to upload an image to RS485-BL:
1007 1007  
1008 -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"]].
1015 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1009 1009  
1017 +**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]].
1010 1010  
1011 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1019 +**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1012 1012  
1013 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1021 +**Step3: **Open flashloader; choose the correct COM port to update.
1014 1014  
1015 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1016 1016  
1024 +|(((
1025 +HOLD PRO then press the RST button, SYS will be ON, then click next
1026 +)))
1017 1017  
1018 -= 7. Trouble Shooting =
1028 +|(((
1029 +Board detected
1030 +)))
1019 1019  
1020 -== 7.1 Downlink doesn’t work, how to solve it? ==
1032 +|(((
1033 +
1034 +)))
1021 1021  
1022 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1036 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
1023 1023  
1024 1024  
1025 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1026 1026  
1027 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1040 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1028 1028  
1029 1029  
1030 -= 8. Order Info =
1043 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1031 1031  
1032 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1033 1033  
1034 -(% style="color:blue" %)**XXX:**
1046 +1.
1047 +11. How to change the LoRa Frequency Bands/Region?
1035 1035  
1036 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1037 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1038 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1039 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1040 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1041 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1042 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1043 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1044 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1045 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1049 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1046 1046  
1047 1047  
1048 -= 9.Packing Info =
1049 1049  
1053 +1.
1054 +11. How many RS485-Slave can RS485-BL connects?
1050 1050  
1051 -**Package Includes**:
1056 +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>>path:#downlink_A8]].
1052 1052  
1053 -* RS485-LN x 1
1054 -* Stick Antenna for LoRa RF part x 1
1055 -* Program cable x 1
1056 1056  
1057 -**Dimension and weight**:
1058 1058  
1059 -* Device Size: 13.5 x 7 x 3 cm
1060 -* Device Weight: 105g
1061 -* Package Size / pcs : 14.5 x 8 x 5 cm
1062 -* Weight / pcs : 170g
1063 1063  
1061 +1. Trouble Shooting     
1062 +11. Downlink doesn’t work, how to solve it?
1064 1064  
1065 -= 10. FCC Caution for RS485LN-US915 =
1064 +Please see this link for debug:
1066 1066  
1067 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1066 +[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]] 
1068 1068  
1069 -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.
1070 1070  
1071 1071  
1072 -**IMPORTANT NOTE:**
1070 +1.
1071 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1073 1073  
1074 -**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:
1073 +It might about the channels mapping. Please see for detail.
1075 1075  
1076 -—Reorient or relocate the receiving antenna.
1075 +[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1077 1077  
1078 -—Increase the separation between the equipment and receiver.
1079 1079  
1080 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1081 1081  
1082 -—Consult the dealer or an experienced radio/TV technician for help.
1079 +1. Order Info
1083 1083  
1081 +**Part Number: RS485-BL-XXX**
1084 1084  
1085 -**FCC Radiation Exposure Statement:**
1083 +**XXX:**
1086 1086  
1087 -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.
1085 +* **EU433**: frequency bands EU433
1086 +* **EU868**: frequency bands EU868
1087 +* **KR920**: frequency bands KR920
1088 +* **CN470**: frequency bands CN470
1089 +* **AS923**: frequency bands AS923
1090 +* **AU915**: frequency bands AU915
1091 +* **US915**: frequency bands US915
1092 +* **IN865**: frequency bands IN865
1093 +* **RU864**: frequency bands RU864
1094 +* **KZ865: **frequency bands KZ865
1088 1088  
1096 +1. Packing Info
1089 1089  
1090 -= 11. Support =
1098 +**Package Includes**:
1091 1091  
1100 +* RS485-BL x 1
1101 +* Stick Antenna for LoRa RF part x 1
1102 +* Program cable x 1
1103 +
1104 +**Dimension and weight**:
1105 +
1106 +* Device Size: 13.5 x 7 x 3 cm
1107 +* Device Weight: 105g
1108 +* Package Size / pcs : 14.5 x 8 x 5 cm
1109 +* Weight / pcs : 170g
1110 +
1111 +1. Support
1112 +
1092 1092  * 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.
1093 -* 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]].
1114 +* 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
1115 +
1116 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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