Summary

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82	82	* Automatic RF Sense and CAD with ultra-fast AFC.
83	83	* Packet engine up to 256 bytes with CRC
84	84
85		-
86		-
87	87	== 1.3 Features ==
88	88
89	89	* LoRaWAN Class A & Class C protocol (default Class C)
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95	95	* Support Modbus protocol
96	96	* Support Interrupt uplink (Since hardware version v1.2)
97	97
98		-
99		-
100	100	== 1.4 Applications ==
101	101
102	102	* Smart Buildings & Home Automation
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106	106	* Smart Cities
107	107	* Smart Factory
108	108
109		-
110		-
111	111	== 1.5 Firmware Change log ==
112	112
113	113	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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223	223
224	224	(((
225	225	(((
226		-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.
	220	+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.
227	227	)))
228	228
229	229	(((
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428	428
429	429	(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
430	430
	425	+
431	431	1. PAYVER: Defined by AT+PAYVER
432	432	1. PAYLOAD COUNT: Total how many uplinks of this sampling.
433	433	1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
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507	507
508	508	There are two kinds of Commands:
509	509
510		-* (% 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]]
	505	+* (% 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: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
511	511
512	512	* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
513	513
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735	735
736	736	* **AT Command:**
737	737
738		-No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
	733	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
739	739
740	740
741	741	* **Downlink Payload:**
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759	759
760	760	The uplink screen shot is:
761	761
762		-[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
	757	+[[image:1654160691922-496.png]]
763	763
764	764
765	765	* **Downlink Payload:**
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858	858	|=**Button**|=(% style="width: 1420px;" %)**Feature**
859	859	|**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**
860	860	|**RST**|(% style="width:1420px" %)Reboot RS485
861		-|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>path:#upgrade_image]]
	856	+|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
862	862
863	863
864		-
865	865	== 3.8 LEDs ==
866	866
867	867	(% border="1" style="background-color:#f7faff; width:500px" %)
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870	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	871
872	872
873		-
874	874	= 4. Case Study =
875	875
876	876	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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890	890	[[image:1654162368066-342.png]]
891	891
892	892
893		-More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
	886	+More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
894	894
895	895
896	896	== 5.2 Common AT Command Sequence ==
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982	982
983	983	**Step3: **Open flashloader; choose the correct COM port to update.
984	984
	978	+(((
985	985	(% 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	+)))
986	986
987	987
988	988	[[image:image-20220602175818-12.png]]
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1063	1063	* Package Size / pcs : 14.5 x 8 x 5 cm
1064	1064	* Weight / pcs : 170g
1065	1065
1066		-
1067		-
1068	1068	= 10. FCC Caution for RS485LN-US915 =
1069	1069
1070	1070	Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.