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<
From version < 57.15 >
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on 2022/06/06 09:05
To version < 44.1 >
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Summary

Details

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Content
... ... @@ -6,18 +6,12 @@
6 6  **RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 -
10 -
11 11  **Table of Contents:**
12 12  
13 -{{toc/}}
14 14  
15 15  
16 16  
17 17  
18 -
19 -
20 -
21 21  = 1.Introduction =
22 22  
23 23  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -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  (((
... ... @@ -528,8 +528,8 @@
528 528  
529 529  === 3.5.3 Sensor related commands ===
530 530  
518 +==== ====
531 531  
532 -
533 533  ==== **RS485 Debug Command** ====
534 534  
535 535  This command is used to configure the RS485 devices; they won’t be used during sampling.
... ... @@ -598,6 +598,7 @@
598 598  **AT+PAYVER: Set PAYVER field = 1**
599 599  )))
600 600  
588 +
601 601  * **Downlink Payload:**
602 602  
603 603  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
... ... @@ -608,9 +608,9 @@
608 608  
609 609  ==== **Set RS485 Sampling Commands** ====
610 610  
611 -AT+COMMANDx or AT+DATACUTx
599 +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"]].
601 +These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
614 614  
615 615  
616 616  * **AT Command:**
... ... @@ -625,7 +625,12 @@
625 625  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
626 626  )))
627 627  
616 +(% class="box infomessage" %)
617 +(((
618 +**AT+SEARCHx: Configure search command**
619 +)))
628 628  
621 +
629 629  * **Downlink Payload:**
630 630  
631 631  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
... ... @@ -640,7 +640,7 @@
640 640  * NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
641 641  * 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.
636 +* 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  
645 645  **Example:**
646 646  
... ... @@ -651,7 +651,17 @@
651 651  (% 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**
652 652  
653 653  
647 +**0xAB** downlink command can be used for set AT+SEARCHx
654 654  
649 +**Example:** **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
650 +
651 +* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
652 +* 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
653 +
654 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
655 +
656 +
657 +
655 655  ==== **Fast command to handle MODBUS device** ====
656 656  
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]].
... ... @@ -658,32 +658,45 @@
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  
665 +**AT+MBFUN has only two value:**
663 663  
667 +* **AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return
668 +
669 +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.
670 +
671 +* **AT+MBFUN=0**: Disable Modbus fast reading.
672 +
664 664  **Example:**
665 665  
666 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
675 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
667 667  * 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.
668 668  * 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.
669 669  
670 -[[image:image-20220602165351-6.png]]
679 +[[image:1654133913295-597.png]]
671 671  
672 -[[image:image-20220602165351-7.png]]
673 673  
682 +[[image:1654133954153-643.png]]
674 674  
675 675  
685 +* **Downlink Commands:**
686 +
687 +**A9 aa** ~-~-> Same as AT+MBFUN=aa
688 +
689 +
690 +
676 676  ==== **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.
693 +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.
679 679  
680 -Default value: 0, range:  0 ~~ 65 seconds
695 +Default value: 0, range:  0 ~~ 5 seconds
681 681  
697 +
682 682  * **AT Command:**
683 683  
684 684  (% class="box infomessage" %)
685 685  (((
686 -**AT+CMDDLaa=hex(bb cc)*1000**
702 +**AT+CMDDLaa=hex(bb cc)**
687 687  )))
688 688  
689 689  **Example:**
... ... @@ -693,13 +693,13 @@
693 693  
694 694  * **Downlink Payload:**
695 695  
696 -**0x AA aa bb cc**
712 +0x AA aa bb cc
697 697  
698 -Same as: AT+CMDDLaa=hex(bb cc)*1000
714 +Same as: AT+CMDDLaa=hex(bb cc)
699 699  
700 700   **Example:**
701 701  
702 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
718 + **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
703 703  
704 704  
705 705  
... ... @@ -734,14 +734,9 @@
734 734  
735 735  Ask device to send an uplink immediately.
736 736  
737 -* **AT Command:**
738 -
739 -No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
740 -
741 -
742 742  * **Downlink Payload:**
743 743  
744 -**0x08 FF**, RS485-LN will immediately send an uplink.
755 +**0x08 FF**, RS485-BL will immediately send an uplink.
745 745  
746 746  
747 747  
... ... @@ -749,18 +749,17 @@
749 749  
750 750  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
751 751  
763 +
752 752  * **AT Command:**
753 753  
754 -**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
766 +(% style="color:#037691" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
755 755  
756 -Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
757 -
758 758  Example screen shot after clear all RS485 commands. 
759 759  
760 760  
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]]
773 +[[image:1654134704555-320.png]]
764 764  
765 765  
766 766  * **Downlink Payload:**
... ... @@ -811,283 +811,22 @@
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 ==
815 815  
816 -This feature support since firmware v1.4
825 +==== **Control output power duration** ====
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.
827 +User can set the output power duration before each sampling.
819 819  
820 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
829 +* **AT Command:**
821 821  
822 -To enable the listening mode, use can run the command AT+RXMODE.
831 +**Example:**
823 823  
833 +**AT+3V3T=1000**  ~/~/ 3V3 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)
835 +**AT+5VT=1000**  ~/~/ +5V output power will open 1s before each sampling.
831 831  
832 -**Downlink Command:**
833 833  
834 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
838 +* **LoRaWAN Downlink Command:**
835 835  
840 +**07 01 aa bb**  Same as AT+5VT=(aa bb)
836 836  
837 -**Example**:
838 -
839 -The RS485-LN is set to AT+RXMODE=2,1000
840 -
841 -There is a two Modbus commands in the RS485 network as below:
842 -
843 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
844 -
845 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
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
848 -
849 -[[image:image-20220602171200-9.png]]
850 -
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 -
854 -
855 -== 3.7 Buttons ==
856 -
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 -
864 -
865 -== 3.8 LEDs ==
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.
871 -
872 -
873 -= 4. Case Study =
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 -
877 -
878 -= 5. Use AT Command =
879 -
880 -== 5.1 Access AT Command ==
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 -
884 -[[image:1654162355560-817.png]]
885 -
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 -
889 -[[image:1654162368066-342.png]]
890 -
891 -
892 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
893 -
894 -
895 -== 5.2 Common AT Command Sequence ==
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**
904 -)))
905 -
906 -(% class="box infomessage" %)
907 -(((
908 -**AT+NJM=0**
909 -)))
910 -
911 -(% class="box infomessage" %)
912 -(((
913 -**ATZ**
914 -)))
915 -
916 -
917 -If device already joined network:
918 -
919 -(% class="box infomessage" %)
920 -(((
921 -**AT+NJM=0**
922 -)))
923 -
924 -(% class="box infomessage" %)
925 -(((
926 -**ATZ**
927 -)))
928 -
929 -
930 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
931 -
932 -
933 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
934 -
935 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
936 -
937 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
938 -
939 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
940 -
941 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
942 -
943 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
944 -
945 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
946 -
947 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
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.
950 -
951 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
952 -
953 -
954 -(% style="color:red" %)**Note:**
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
960 -
961 -[[image:1654162478620-421.png]]
962 -
963 -
964 -= 6. FAQ =
965 -
966 -== 6.1 How to upgrade the image? ==
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:
969 -
970 -* Support new features
971 -* For bug fix
972 -* Change LoRaWAN bands.
973 -
974 -Below shows the hardware connection for how to upload an image to RS485-LN:
975 -
976 -[[image:1654162535040-878.png]]
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]].
979 -
980 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
981 -
982 -**Step3: **Open flashloader; choose the correct COM port to update.
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.
985 -
986 -
987 -[[image:image-20220602175818-12.png]]
988 -
989 -
990 -[[image:image-20220602175848-13.png]]
991 -
992 -
993 -[[image:image-20220602175912-14.png]]
994 -
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:
997 -
998 -[[image:image-20220602175638-10.png]]
999 -
1000 -
1001 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
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.
1004 -
1005 -
1006 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
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"]].
1009 -
1010 -
1011 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1012 -
1013 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
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 -
1017 -
1018 -= 7. Trouble Shooting =
1019 -
1020 -== 7.1 Downlink doesn’t work, how to solve it? ==
1021 -
1022 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1023 -
1024 -
1025 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
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"]]
1028 -
1029 -
1030 -= 8. Order Info =
1031 -
1032 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1033 -
1034 -(% style="color:blue" %)**XXX:**
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
1046 -
1047 -
1048 -= 9.Packing Info =
1049 -
1050 -
1051 -**Package Includes**:
1052 -
1053 -* RS485-LN x 1
1054 -* Stick Antenna for LoRa RF part x 1
1055 -* Program cable x 1
1056 -
1057 -**Dimension and weight**:
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 -
1064 -
1065 -= 10. FCC Caution for RS485LN-US915 =
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.
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 -
1071 -
1072 -**IMPORTANT NOTE:**
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:
1075 -
1076 -—Reorient or relocate the receiving antenna.
1077 -
1078 -—Increase the separation between the equipment and receiver.
1079 -
1080 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1081 -
1082 -—Consult the dealer or an experienced radio/TV technician for help.
1083 -
1084 -
1085 -**FCC Radiation Exposure Statement:**
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.
1088 -
1089 -
1090 -= 11. Support =
1091 -
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]].
842 +**07 02 aa bb**  Same as AT+3V3T=(aa bb)
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