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on 2022/06/06 09:01
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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  (((
... ... @@ -524,8 +524,8 @@
524 524  
525 525  === 3.5.3 Sensor related commands ===
526 526  
518 +==== ====
527 527  
528 -
529 529  ==== **RS485 Debug Command** ====
530 530  
531 531  This command is used to configure the RS485 devices; they won’t be used during sampling.
... ... @@ -594,6 +594,7 @@
594 594  **AT+PAYVER: Set PAYVER field = 1**
595 595  )))
596 596  
588 +
597 597  * **Downlink Payload:**
598 598  
599 599  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
... ... @@ -604,9 +604,9 @@
604 604  
605 605  ==== **Set RS485 Sampling Commands** ====
606 606  
607 -AT+COMMANDx or AT+DATACUTx
599 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
608 608  
609 -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"]].
610 610  
611 611  
612 612  * **AT Command:**
... ... @@ -621,7 +621,12 @@
621 621  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
622 622  )))
623 623  
616 +(% class="box infomessage" %)
617 +(((
618 +**AT+SEARCHx: Configure search command**
619 +)))
624 624  
621 +
625 625  * **Downlink Payload:**
626 626  
627 627  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
... ... @@ -636,7 +636,7 @@
636 636  * NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
637 637  * LL:  The length of AT+COMMAND or AT+DATACUT command
638 638  * XX XX XX XX: AT+COMMAND or AT+DATACUT command
639 -* 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.
640 640  
641 641  **Example:**
642 642  
... ... @@ -647,7 +647,17 @@
647 647  (% 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**
648 648  
649 649  
647 +**0xAB** downlink command can be used for set AT+SEARCHx
650 650  
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 +
651 651  ==== **Fast command to handle MODBUS device** ====
652 652  
653 653  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]].
... ... @@ -654,32 +654,45 @@
654 654  
655 655  This command is valid since v1.3 firmware version
656 656  
657 -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.
658 658  
665 +**AT+MBFUN has only two value:**
659 659  
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 +
660 660  **Example:**
661 661  
662 -* 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).
663 663  * 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.
664 664  * 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  
666 -[[image:image-20220602165351-6.png]]
679 +[[image:1654133913295-597.png]]
667 667  
668 -[[image:image-20220602165351-7.png]]
669 669  
682 +[[image:1654133954153-643.png]]
670 670  
671 671  
685 +* **Downlink Commands:**
686 +
687 +**A9 aa** ~-~-> Same as AT+MBFUN=aa
688 +
689 +
690 +
672 672  ==== **RS485 command timeout** ====
673 673  
674 -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.
675 675  
676 -Default value: 0, range:  0 ~~ 65 seconds
695 +Default value: 0, range:  0 ~~ 5 seconds
677 677  
697 +
678 678  * **AT Command:**
679 679  
680 680  (% class="box infomessage" %)
681 681  (((
682 -**AT+CMDDLaa=hex(bb cc)*1000**
702 +**AT+CMDDLaa=hex(bb cc)**
683 683  )))
684 684  
685 685  **Example:**
... ... @@ -689,13 +689,13 @@
689 689  
690 690  * **Downlink Payload:**
691 691  
692 -**0x AA aa bb cc**
712 +0x AA aa bb cc
693 693  
694 -Same as: AT+CMDDLaa=hex(bb cc)*1000
714 +Same as: AT+CMDDLaa=hex(bb cc)
695 695  
696 696   **Example:**
697 697  
698 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
718 + **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
699 699  
700 700  
701 701  
... ... @@ -730,14 +730,9 @@
730 730  
731 731  Ask device to send an uplink immediately.
732 732  
733 -* **AT Command:**
734 -
735 -No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
736 -
737 -
738 738  * **Downlink Payload:**
739 739  
740 -**0x08 FF**, RS485-LN will immediately send an uplink.
755 +**0x08 FF**, RS485-BL will immediately send an uplink.
741 741  
742 742  
743 743  
... ... @@ -745,18 +745,17 @@
745 745  
746 746  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
747 747  
763 +
748 748  * **AT Command:**
749 749  
750 -**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
751 751  
752 -Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
753 -
754 754  Example screen shot after clear all RS485 commands. 
755 755  
756 756  
757 757  The uplink screen shot is:
758 758  
759 -[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
773 +[[image:1654134704555-320.png]]
760 760  
761 761  
762 762  * **Downlink Payload:**
... ... @@ -807,283 +807,22 @@
807 807  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
808 808  
809 809  
810 -== 3.6 Listening mode for RS485 network ==
811 811  
812 -This feature support since firmware v1.4
825 +==== **Control output power duration** ====
813 813  
814 -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.
815 815  
816 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
829 +* **AT Command:**
817 817  
818 -To enable the listening mode, use can run the command AT+RXMODE.
831 +**Example:**
819 819  
833 +**AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
820 820  
821 -(% border="1" style="background-color:#ffffcc; width:500px" %)
822 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
823 -|(% 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.
824 -|(% 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
825 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
826 -|(% 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.
827 827  
828 -**Downlink Command:**
829 829  
830 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
838 +* **LoRaWAN Downlink Command:**
831 831  
840 +**07 01 aa bb**  Same as AT+5VT=(aa bb)
832 832  
833 -**Example**:
834 -
835 -The RS485-LN is set to AT+RXMODE=2,1000
836 -
837 -There is a two Modbus commands in the RS485 network as below:
838 -
839 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
840 -
841 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
842 -
843 -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
844 -
845 -[[image:image-20220602171200-9.png]]
846 -
847 -
848 -(% 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.
849 -
850 -
851 -== 3.7 Buttons ==
852 -
853 -
854 -(% border="1" style="background-color:#f7faff; width:500px" %)
855 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
856 -|**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**
857 -|**RST**|(% style="width:1420px" %)Reboot RS485
858 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>path:#upgrade_image]]
859 -
860 -
861 -== 3.8 LEDs ==
862 -
863 -(% border="1" style="background-color:#f7faff; width:500px" %)
864 -|=**LEDs**|=**Feature**
865 -|**PWR**|Always on if there is power
866 -|**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.
867 -
868 -
869 -= 4. Case Study =
870 -
871 -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]]
872 -
873 -
874 -= 5. Use AT Command =
875 -
876 -== 5.1 Access AT Command ==
877 -
878 -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.
879 -
880 -[[image:1654162355560-817.png]]
881 -
882 -
883 -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:
884 -
885 -[[image:1654162368066-342.png]]
886 -
887 -
888 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
889 -
890 -
891 -== 5.2 Common AT Command Sequence ==
892 -
893 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
894 -
895 -If device has not joined network yet:
896 -
897 -(% class="box infomessage" %)
898 -(((
899 -**AT+FDR**
900 -)))
901 -
902 -(% class="box infomessage" %)
903 -(((
904 -**AT+NJM=0**
905 -)))
906 -
907 -(% class="box infomessage" %)
908 -(((
909 -**ATZ**
910 -)))
911 -
912 -
913 -If device already joined network:
914 -
915 -(% class="box infomessage" %)
916 -(((
917 -**AT+NJM=0**
918 -)))
919 -
920 -(% class="box infomessage" %)
921 -(((
922 -**ATZ**
923 -)))
924 -
925 -
926 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
927 -
928 -
929 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
930 -
931 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
932 -
933 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
934 -
935 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
936 -
937 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
938 -
939 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
940 -
941 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
942 -
943 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
944 -
945 -(% 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.
946 -
947 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
948 -
949 -
950 -(% style="color:red" %)**Note:**
951 -
952 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
953 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
954 -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.
955 -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
956 -
957 -[[image:1654162478620-421.png]]
958 -
959 -
960 -= 6. FAQ =
961 -
962 -== 6.1 How to upgrade the image? ==
963 -
964 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
965 -
966 -* Support new features
967 -* For bug fix
968 -* Change LoRaWAN bands.
969 -
970 -Below shows the hardware connection for how to upload an image to RS485-LN:
971 -
972 -[[image:1654162535040-878.png]]
973 -
974 -**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]].
975 -
976 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
977 -
978 -**Step3: **Open flashloader; choose the correct COM port to update.
979 -
980 -(% 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.
981 -
982 -
983 -[[image:image-20220602175818-12.png]]
984 -
985 -
986 -[[image:image-20220602175848-13.png]]
987 -
988 -
989 -[[image:image-20220602175912-14.png]]
990 -
991 -
992 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
993 -
994 -[[image:image-20220602175638-10.png]]
995 -
996 -
997 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
998 -
999 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1000 -
1001 -
1002 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1003 -
1004 -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"]].
1005 -
1006 -
1007 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1008 -
1009 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1010 -
1011 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1012 -
1013 -
1014 -= 7. Trouble Shooting =
1015 -
1016 -== 7.1 Downlink doesn’t work, how to solve it? ==
1017 -
1018 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1019 -
1020 -
1021 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1022 -
1023 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1024 -
1025 -
1026 -= 8. Order Info =
1027 -
1028 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1029 -
1030 -(% style="color:blue" %)**XXX:**
1031 -
1032 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1033 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1034 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1035 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1036 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1037 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1038 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1039 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1040 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1041 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1042 -
1043 -
1044 -= 9.Packing Info =
1045 -
1046 -
1047 -**Package Includes**:
1048 -
1049 -* RS485-LN x 1
1050 -* Stick Antenna for LoRa RF part x 1
1051 -* Program cable x 1
1052 -
1053 -**Dimension and weight**:
1054 -
1055 -* Device Size: 13.5 x 7 x 3 cm
1056 -* Device Weight: 105g
1057 -* Package Size / pcs : 14.5 x 8 x 5 cm
1058 -* Weight / pcs : 170g
1059 -
1060 -
1061 -= 10. FCC Caution for RS485LN-US915 =
1062 -
1063 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1064 -
1065 -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.
1066 -
1067 -
1068 -**IMPORTANT NOTE:**
1069 -
1070 -**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:
1071 -
1072 -—Reorient or relocate the receiving antenna.
1073 -
1074 -—Increase the separation between the equipment and receiver.
1075 -
1076 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1077 -
1078 -—Consult the dealer or an experienced radio/TV technician for help.
1079 -
1080 -
1081 -**FCC Radiation Exposure Statement:**
1082 -
1083 -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.
1084 -
1085 -
1086 -= 11. Support =
1087 -
1088 -* 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.
1089 -* 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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