Last modified by Xiaoling on 2025/04/23 15:56
<
From version < 57.3 >
edited by Xiaoling
on 2022/06/06 08:41
To version < 37.2 >
edited by Xiaoling
on 2022/06/02 16:06
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -74,10 +74,8 @@
74 74  * Preamble detection.
75 75  * 127 dB Dynamic Range RSSI.
76 76  * Automatic RF Sense and CAD with ultra-fast AFC.
77 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
78 78  
79 -
80 -
81 81  == 1.3 Features ==
82 82  
83 83  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -89,8 +89,6 @@
89 89  * Support Modbus protocol
90 90  * Support Interrupt uplink (Since hardware version v1.2)
91 91  
92 -
93 -
94 94  == 1.4 Applications ==
95 95  
96 96  * Smart Buildings & Home Automation
... ... @@ -455,87 +455,135 @@
455 455  
456 456  === 3.3.5 Uplink on demand ===
457 457  
458 -Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
454 +Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
459 459  
460 460  Downlink control command:
461 461  
462 -**0x08 command**: Poll an uplink with current command set in RS485-LN.
458 +[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
463 463  
464 -**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
460 +[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
465 465  
466 466  
467 467  
468 -=== 3.3.6 Uplink on Interrupt ===
464 +1.
465 +11.
466 +111. Uplink on Interrupt
469 469  
470 -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]]
471 471  
472 -[[image:1654157342174-798.png]]
470 +AT+INTMOD=0  Disable Interrupt
473 473  
474 -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.
475 475  
474 +AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
476 476  
477 -== 3.4 Uplink Payload ==
476 +AT+INTMOD=3  Interrupt trigger by rising edge.
478 478  
479 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
480 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
481 -|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|(((
482 482  Battery(mV)
483 483  
484 484  &
485 485  
486 486  Interrupt _Flag
487 -)))|(% style="width:116px" %)(((
489 +)))|(((
488 488  PAYLOAD_VER
489 489  
490 490  
491 -)))|(% 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.
492 492  
493 493  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
494 494  
495 495  
496 -== 3.5 Configure RS485-BL via AT or Downlink ==
498 +function Decoder(bytes, port) {
497 497  
498 -User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
500 +~/~/Payload Formats of RS485-BL Deceive
499 499  
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 +
500 500  There are two kinds of Commands:
501 501  
502 -* (% 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
503 503  
504 -* (% 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:
505 505  
506 -=== 3.5.1 Common Commands ===
541 +1.
542 +11.
543 +111. Common Commands:
507 507  
508 -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]]
509 509  
510 510  
511 -=== 3.5.2 Sensor related commands ===
548 +1.
549 +11.
550 +111. Sensor related commands:
512 512  
513 -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) ====
514 514  
515 -[[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.
516 516  
517 -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
518 518  
558 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
519 519  
520 -=== 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.
521 521  
522 -==== ====
523 523  
524 -==== **RS485 Debug Command** ====
563 +* Downlink Payload
525 525  
526 -This command is used to configure the RS485 devices; they won’t be used during sampling.
565 +**0A aa**     à same as AT+MOD=aa
527 527  
528 -* **AT Command**
529 529  
530 -(% class="box infomessage" %)
531 -(((
532 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
533 -)))
534 534  
535 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
569 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
536 536  
537 -* **Downlink Payload**
571 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
538 538  
573 +* AT Command
574 +
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 +
539 539  Format: A8 MM NN XX XX XX XX YY
540 540  
541 541  Where:
... ... @@ -543,12 +543,9 @@
543 543  * MM: 1: add CRC-16/MODBUS ; 0: no CRC
544 544  * NN: The length of RS485 command
545 545  * XX XX XX XX: RS485 command total NN bytes
546 -* YY: How many bytes will be uplink from the return of this RS485 command,
547 -** if YY=0, RS485-LN will execute the downlink command without uplink;
548 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
549 -** 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
550 550  
551 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
592 +**Example 1:**
552 552  
553 553  To connect a Modbus Alarm with below commands.
554 554  
... ... @@ -558,191 +558,184 @@
558 558  
559 559  So if user want to use downlink command to control to RS485 Alarm, he can use:
560 560  
561 -(% 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
562 562  
563 -(% 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
564 564  
565 565  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.
566 566  
567 567  
568 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
609 +**Example 2:**
569 569  
570 -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:
571 571  
613 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
572 572  
573 -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:
574 574  
575 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
576 576  
577 - [[image:1654159460680-153.png]]
578 578  
618 +==== Set Payload version ====
579 579  
580 -
581 -==== **Set Payload version** ====
582 -
583 583  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.
584 584  
585 -* **AT Command:**
622 +* AT Command:
586 586  
587 -(% class="box infomessage" %)
588 -(((
589 -**AT+PAYVER: Set PAYVER field = 1**
590 -)))
624 +AT+PAYVER: Set PAYVER field = 1
591 591  
592 -* **Downlink Payload:**
593 593  
594 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
627 +* Downlink Payload:
595 595  
596 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
629 +0xAE 01   à Set PAYVER field =  0x01
597 597  
631 +0xAE 0F   à Set PAYVER field =  0x0F
598 598  
599 599  
600 -==== **Set RS485 Sampling Commands** ====
634 +==== Set RS485 Sampling Commands ====
601 601  
602 -AT+COMMANDx or AT+DATACUTx
636 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
603 603  
604 -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]].
605 605  
606 606  
607 -* **AT Command:**
641 +* AT Command:
608 608  
609 -(% class="box infomessage" %)
610 -(((
611 -**AT+COMMANDx: Configure RS485 read command to sensor.**
612 -)))
643 +AT+COMMANDx: Configure RS485 read command to sensor.
613 613  
614 -(% class="box infomessage" %)
615 -(((
616 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
617 -)))
645 +AT+DATACUTx: Configure how to handle return from RS485 devices.
618 618  
647 +AT+SEARCHx: Configure search command
619 619  
620 -* **Downlink Payload:**
621 621  
622 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
650 +* Downlink Payload:
623 623  
624 -(% 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.
625 625  
654 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
655 +
626 626  Format: AF MM NN LL XX XX XX XX YY
627 627  
628 628  Where:
629 629  
630 630  * MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
631 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
632 -* 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
633 633  * XX XX XX XX: AT+COMMAND or AT+DATACUT command
634 -* 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.
635 635  
636 -**Example:**
666 +Example:
637 637  
638 -(% 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
639 639  
640 -(% 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**
641 641  
642 -(% 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**
643 643  
644 644  
675 +0xAB downlink command can be used for set AT+SEARCHx
645 645  
646 -==== **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
647 647  
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 +
648 648  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]].
649 649  
650 650  This command is valid since v1.3 firmware version
651 651  
652 -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.
653 653  
692 +AT+MBFUN has only two value:
654 654  
655 -**Example:**
694 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
656 656  
657 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
658 -* 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.
659 -* 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.
660 660  
661 -[[image:image-20220602165351-6.png]]
698 +* AT+MBFUN=0: Disable Modbus fast reading.
662 662  
663 -[[image:image-20220602165351-7.png]]
700 +Example:
664 664  
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.
665 665  
706 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
666 666  
667 -==== **RS485 command timeout** ====
668 668  
669 -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]]
670 670  
671 -Default value: 0, range:  0 ~~ 65 seconds
672 672  
673 -* **AT Command:**
712 +* Downlink Commands:
674 674  
675 -(% class="box infomessage" %)
676 -(((
677 -**AT+CMDDLaa=hex(bb cc)*1000**
678 -)))
714 +A9 aa -à Same as AT+MBFUN=aa
679 679  
680 -**Example:**
681 681  
682 -**AT+CMDDL1=1000** to send the open time to 1000ms
717 +==== RS485 command timeout ====
683 683  
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.
684 684  
685 -* **Downlink Payload:**
721 +Default value: 0, range:  0 ~~ 5 seconds
686 686  
687 -**0x AA aa bb cc**
688 688  
689 -Same as: AT+CMDDLaa=hex(bb cc)*1000
724 +* AT Command:
690 690  
691 - **Example:**
726 +AT+CMDDLaa=hex(bb cc)
692 692  
693 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
728 +Example:
694 694  
730 +**AT+CMDDL1=1000** to send the open time to 1000ms
695 695  
696 696  
697 -==== **Uplink payload mode** ====
733 +* Downlink Payload:
698 698  
699 -Define to use one uplink or multiple uplinks for the sampling.
735 +0x AA aa bb cc
700 700  
701 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
737 +Same as: AT+CMDDLaa=hex(bb cc)
702 702  
703 -* **AT Command:**
739 + Example:
704 704  
705 -(% class="box infomessage" %)
706 -(((
707 -**AT+DATAUP=0**
708 -)))
741 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
709 709  
710 -(% class="box infomessage" %)
711 -(((
712 -**AT+DATAUP=1**
713 -)))
714 714  
744 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
715 715  
716 -* **Downlink Payload:**
746 +Define to use one uplink or multiple uplinks for the sampling.
717 717  
718 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
748 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
719 719  
720 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
750 +* AT Command:
721 721  
752 +AT+DATAUP=0
722 722  
754 +AT+DATAUP=1
723 723  
724 -==== **Manually trigger an Uplink** ====
725 725  
726 -Ask device to send an uplink immediately.
757 +* Downlink Payload:
727 727  
728 -* **AT Command:**
759 +0xAD 00   à Same as AT+DATAUP=0
729 729  
730 -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
731 731  
732 732  
733 -* **Downlink Payload:**
764 +==== Manually trigger an Uplink ====
734 734  
735 -**0x08 FF**, RS485-LN will immediately send an uplink.
766 +Ask device to send an uplink immediately.
736 736  
768 +* Downlink Payload:
737 737  
738 -==== ====
770 +0x08 FF, RS485-BL will immediately send an uplink.
739 739  
740 -==== **Clear RS485 Command** ====
741 741  
773 +==== Clear RS485 Command ====
774 +
742 742  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
743 743  
744 -* **AT Command:**
745 745  
778 +* AT Command:
779 +
746 746  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
747 747  
748 748  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
... ... @@ -750,50 +750,43 @@
750 750  Example screen shot after clear all RS485 commands. 
751 751  
752 752  
787 +
753 753  The uplink screen shot is:
754 754  
755 -[[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]]
756 756  
757 757  
758 -* **Downlink Payload:**
793 +* Downlink Payload:
759 759  
760 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
795 +0x09 aa bb same as AT+CMDEAR=aa,bb
761 761  
762 762  
798 +==== Set Serial Communication Parameters ====
763 763  
764 -==== **Set Serial Communication Parameters** ====
765 -
766 766  Set the Rs485 serial communication parameters:
767 767  
768 -* **AT Command:**
802 +* AT Command:
769 769  
770 770  Set Baud Rate:
771 771  
772 -(% class="box infomessage" %)
773 -(((
774 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
775 -)))
806 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
776 776  
777 -Set UART Parity
778 778  
779 -(% class="box infomessage" %)
780 -(((
781 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
782 -)))
809 +Set UART parity
783 783  
811 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
812 +
813 +
784 784  Set STOPBIT
785 785  
786 -(% class="box infomessage" %)
787 -(((
788 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
789 -)))
816 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
790 790  
791 791  
792 -* **Downlink Payload:**
819 +* Downlink Payload:
793 793  
794 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
821 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
795 795  
796 -**Example:**
823 +Example:
797 797  
798 798  * A7 01 00 60   same as AT+BAUDR=9600
799 799  * A7 01 04 80  same as AT+BAUDR=115200
... ... @@ -803,279 +803,287 @@
803 803  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
804 804  
805 805  
806 -== 3.6 Listening mode for RS485 network ==
833 +==== Control output power duration ====
807 807  
808 -This feature support since firmware v1.4
835 +User can set the output power duration before each sampling.
809 809  
810 -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:
811 811  
812 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
839 +Example:
813 813  
814 -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.
815 815  
843 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
816 816  
817 -(% border="1" style="background-color:#ffffcc; width:500px" %)
818 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
819 -|(% 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.
820 -|(% 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
821 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
822 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
823 823  
824 -**Downlink Command:**
846 +* LoRaWAN Downlink Command:
825 825  
826 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
848 +07 01 aa bb  Same as AT+5VT=(aa bb)
827 827  
850 +07 02 aa bb  Same as AT+3V3T=(aa bb)
828 828  
829 -**Example**:
830 830  
831 -The RS485-LN is set to AT+RXMODE=2,1000
832 832  
833 -There is a two Modbus commands in the RS485 network as below:
834 834  
835 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
855 +1.
856 +11. Buttons
836 836  
837 -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
838 838  
839 -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
840 840  
841 -[[image:image-20220602171200-9.png]]
864 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
842 842  
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. 
843 843  
844 -(% 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.
845 845  
869 +The +3V3 output time can be controlled by AT Command.
846 846  
847 -== 3.7 Buttons ==
871 +**AT+3V3T=1000**
848 848  
873 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
849 849  
850 -(% border="1" style="background-color:#f7faff; width:500px" %)
851 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
852 -|**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**
853 -|**RST**|(% style="width:1420px" %)Reboot RS485
854 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>path:#upgrade_image]]
855 855  
856 -== 3.8 LEDs ==
876 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
857 857  
858 -(% border="1" style="background-color:#f7faff; width:500px" %)
859 -|=**LEDs**|=**Feature**
860 -|**PWR**|Always on if there is power
861 -|**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.
862 862  
863 -= 4. Case Study =
879 +1.
880 +11. +5V Output
864 864  
865 -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]]
882 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
866 866  
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. 
867 867  
868 -= 5. Use AT Command =
869 869  
870 -== 5.1 Access AT Command ==
887 +The 5V output time can be controlled by AT Command.
871 871  
872 -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.
889 +**AT+5VT=1000**
873 873  
874 -[[image:1654162355560-817.png]]
891 +Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
875 875  
876 876  
877 -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:
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.
878 878  
879 -[[image:1654162368066-342.png]]
880 880  
881 881  
882 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
883 883  
899 +1.
900 +11. LEDs
884 884  
885 -== 5.2 Common AT Command Sequence ==
902 +|**LEDs**|**Feature**
903 +|**LED1**|Blink when device transmit a packet.
886 886  
887 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
905 +1.
906 +11. Switch Jumper
888 888  
889 -If device has not joined network yet:
908 +|**Switch Jumper**|**Feature**
909 +|**SW1**|(((
910 +ISP position: Upgrade firmware via UART
890 890  
891 -(% class="box infomessage" %)
892 -(((
893 -**AT+FDR**
912 +Flash position: Configure device, check running status.
894 894  )))
914 +|**SW2**|(((
915 +5V position: set to compatible with 5v I/O.
895 895  
896 -(% class="box infomessage" %)
897 -(((
898 -**AT+NJM=0**
917 +3.3v position: set to compatible with 3.3v I/O.,
899 899  )))
900 900  
901 -(% class="box infomessage" %)
902 -(((
903 -**ATZ**
904 -)))
920 ++3.3V: is always ON
905 905  
922 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
906 906  
907 -If device already joined network:
924 +1. Case Study
908 908  
909 -(% class="box infomessage" %)
910 -(((
911 -**AT+NJM=0**
912 -)))
926 +User can check this URL for some case studies.
913 913  
914 -(% class="box infomessage" %)
915 -(((
916 -**ATZ**
917 -)))
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]]
918 918  
919 919  
920 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
921 921  
922 922  
923 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
933 +1. Use AT Command
934 +11. Access AT Command
924 924  
925 -(% 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.
926 926  
927 -(% 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]]
928 928  
929 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
930 930  
931 -(% 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:
932 932  
933 -(% 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]]
934 934  
935 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
936 936  
937 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
938 938  
939 -(% 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]]
940 940  
941 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
942 942  
943 943  
944 -(% style="color:red" %)**Note:**
951 +1.
952 +11. Common AT Command Sequence
953 +111. Multi-channel ABP mode (Use with SX1301/LG308)
945 945  
946 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
947 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
948 -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.
949 -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:
950 950  
951 -[[image:1654162478620-421.png]]
957 +AT+FDR
952 952  
959 +AT+NJM=0
953 953  
954 -= 6. FAQ =
961 +ATZ
955 955  
956 -== 6.1 How to upgrade the image? ==
957 957  
958 -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:
959 959  
960 -* Support new features
961 -* For bug fix
962 -* Change LoRaWAN bands.
966 +AT+NJM=0
963 963  
964 -Below shows the hardware connection for how to upload an image to RS485-LN:
968 +ATZ
965 965  
966 -[[image:1654162535040-878.png]]
970 +1.
971 +11.
972 +111. Single-channel ABP mode (Use with LG01/LG02)
967 967  
968 -**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
969 969  
970 -**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
971 971  
972 -**Step3: **Open flashloader; choose the correct COM port to update.
978 +AT+ADR=0 Set the Adaptive Data Rate Off
973 973  
974 -(% 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
975 975  
982 +AT+TDC=60000  Set transmit interval to 60 seconds
976 976  
977 -[[image:image-20220602175818-12.png]]
984 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
978 978  
986 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
979 979  
980 -[[image:image-20220602175848-13.png]]
988 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
981 981  
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.
982 982  
983 -[[image:image-20220602175912-14.png]]
992 +ATZ          Reset MCU
984 984  
994 +**Note:**
985 985  
986 -**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
987 987  
988 -[[image:image-20220602175638-10.png]]
1001 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
989 989  
990 990  
991 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
1004 +1. FAQ
1005 +11. How to upgrade the image?
992 992  
993 -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:
994 994  
1009 +* Support new features
1010 +* For bug fix
1011 +* Change LoRaWAN bands.
995 995  
996 -== 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:
997 997  
998 -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]]
999 999  
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]].
1000 1000  
1001 -== 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/]].
1002 1002  
1003 -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.
1004 1004  
1005 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1006 1006  
1024 +|(((
1025 +HOLD PRO then press the RST button, SYS will be ON, then click next
1026 +)))
1007 1007  
1008 -= 7. Trouble Shooting =
1028 +|(((
1029 +Board detected
1030 +)))
1009 1009  
1010 -== 7.1 Downlink doesn’t work, how to solve it? ==
1032 +|(((
1033 +
1034 +)))
1011 1011  
1012 -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]]
1013 1013  
1014 1014  
1015 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1016 1016  
1017 -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]]
1018 1018  
1019 1019  
1020 -= 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]]
1021 1021  
1022 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1023 1023  
1024 -(% style="color:blue" %)**XXX:**
1046 +1.
1047 +11. How to change the LoRa Frequency Bands/Region?
1025 1025  
1026 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1027 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1028 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1029 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1030 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1031 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1032 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1033 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1034 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1035 -* (% 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.
1036 1036  
1037 -= 9.Packing Info =
1038 1038  
1039 1039  
1040 -**Package Includes**:
1053 +1.
1054 +11. How many RS485-Slave can RS485-BL connects?
1041 1041  
1042 -* RS485-LN x 1
1043 -* Stick Antenna for LoRa RF part x 1
1044 -* Program cable x 1
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]].
1045 1045  
1046 -**Dimension and weight**:
1047 1047  
1048 -* Device Size: 13.5 x 7 x 3 cm
1049 -* Device Weight: 105g
1050 -* Package Size / pcs : 14.5 x 8 x 5 cm
1051 -* Weight / pcs : 170g
1052 1052  
1053 -= 10. FCC Caution for RS485LN-US915 =
1054 1054  
1055 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1061 +1. Trouble Shooting     
1062 +11. Downlink doesn’t work, how to solve it?
1056 1056  
1057 -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.
1064 +Please see this link for debug:
1058 1058  
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]] 
1059 1059  
1060 -**IMPORTANT NOTE:**
1061 1061  
1062 -**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:
1063 1063  
1064 -—Reorient or relocate the receiving antenna.
1070 +1.
1071 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1065 1065  
1066 -—Increase the separation between the equipment and receiver.
1073 +It might about the channels mapping. Please see for detail.
1067 1067  
1068 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
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]]
1069 1069  
1070 -—Consult the dealer or an experienced radio/TV technician for help.
1071 1071  
1072 1072  
1073 -**FCC Radiation Exposure Statement:**
1079 +1. Order Info
1074 1074  
1075 -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.
1081 +**Part Number: RS485-BL-XXX**
1076 1076  
1083 +**XXX:**
1077 1077  
1078 -= 11. Support =
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
1079 1079  
1096 +1. Packing Info
1097 +
1098 +**Package Includes**:
1099 +
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 +
1080 1080  * 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.
1081 -* 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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