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856	856	|**PWR**|Always on if there is power
857	857	|**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.
858	858
	859	+
	860	+
859	859	= 4. Case Study =
860	860
861	861	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]]
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922	922
923	923	(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
924	924
925		-(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
	927	+(% style="background-color:#dcdcdc" %)**AT+DR=5**  (%%)Set Data Rate
926	926
927	927	(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
928	928
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967	967
968	968	**Step3: **Open flashloader; choose the correct COM port to update.
969	969
970		-(% style="color:#037691" %) 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.
971		-
972	972	[[image:image-20220602102605-1.png]]
973	973
974	974
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978	978	[[image:image-20220602102715-3.png]]
979	979
980	980
	981	+
981	981	== 6.2 How to change the LoRa Frequency Bands/Region? ==
982	982
983	983	User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
984	984
985	985
	987	+
986	986	== 6.3 How many RS485-Slave can RS485-BL connects? ==
987	987
988	988	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"]].
989	989
990	990
991		-== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
992	992
993		-When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
994		-
995		-Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
996		-
997		-
998	998	= 7. Trouble Shooting =
999	999
	996	+
1000	1000	== 7.1 Downlink doesn’t work, how to solve it? ==
1001	1001
1002	1002	Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
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1009	1009
1010	1010	= 8. Order Info =
1011	1011
1012		-(% style="color:blue" %)**Part Number: RS485-LN-XXX**
	1009	+(% style="color:blue" %)**Part Number: RS485-BL-XXX**
1013	1013
1014	1014	(% style="color:blue" %)**XXX:**
1015	1015
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1024	1024	* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1025	1025	* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1026	1026
1027		-
1028	1028	(% class="wikigeneratedid" %)
1029		-= 9.Packing Info =
1030		-
1031		-
1032		-**Package Includes**:
1033		-
1034		-* RS485-LN x 1
1035		-* Stick Antenna for LoRa RF part x 1
1036		-* Program cable x 1
1037		-
1038		-
1039		-**Dimension and weight**:
1040		-
1041		-* Device Size: 13.5 x 7 x 3 cm
1042		-* Device Weight: 105g
1043		-* Package Size / pcs : 14.5 x 8 x 5 cm
1044		-* Weight / pcs : 170g
1045		-
1046		-
1047		-= 10. FCC Caution for RS485LN-US915 =
1048		-
1049		-Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1050		-
1051		-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.
1052		-
1053		-
1054		-**IMPORTANT NOTE:**
1055		-
1056		-**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:
1057		-
1058		-—Reorient or relocate the receiving antenna.
1059		-
1060		-—Increase the separation between the equipment and receiver.
1061		-
1062		-—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1063		-
1064		-—Consult the dealer or an experienced radio/TV technician for help.
1065		-
1066		-
1067		-**FCC Radiation Exposure Statement:**
1068		-
1069		-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.
1070		-
1071		-
1072		-= 11. Support =
1073		-
1074		-* 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.
1075		-* 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]].
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1		-XWiki.Xiaoling

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