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Title

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1		-RS485-LN – RS485 to LoRaWAN Converter User Manual
	1	+RS485-LN – RS485 to LoRaWAN Converter

Content

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3	3
4	4
5	5
	6	+**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6	6
7	7
8	8
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91	91	* Automatic RF Sense and CAD with ultra-fast AFC.
92	92	* Packet engine up to 256 bytes with CRC
93	93
94		-
95	95	== 1.3 Features ==
96	96
97	97	* LoRaWAN Class A & Class C protocol (default Class C)
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103	103	* Support Modbus protocol
104	104	* Support Interrupt uplink (Since hardware version v1.2)
105	105
106		-
107	107	== 1.4 Applications ==
108	108
109	109	* Smart Buildings & Home Automation
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113	113	* Smart Cities
114	114	* Smart Factory
115	115
116		-
117	117	== 1.5 Firmware Change log ==
118	118
119	119	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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323	323	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
324	324	|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
325	325	|AT+CFGDEV|(% style="width:110px" %)(((
326		-(((
327	327	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
328		-)))
329	329
330		-(((
331	331	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
332		-)))
333	333
334		-(((
335	335	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
336		-)))
337	337	)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
338	338
339	339
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1194	1194	== 3.7 Buttons ==
1195	1195
1196	1196
1197		-(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1198		-|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1199		-|(% style="width:50px" %)**ACT**|(% style="width:361px" %)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**
1200		-|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1201		-|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
	1189	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
	1190	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
	1191	+|(% style="width:50px" %)**ACT**|(% style="width:350px" %)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**
	1192	+|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
	1193	+|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1202	1202
1203	1203
1204	1204	== 3.8 LEDs ==
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1261	1261	)))
1262	1262
1263	1263
1264		-(((
1265	1265	If device already joined network:
1266		-)))
1267	1267
1268	1268	(% class="box infomessage" %)
1269	1269	(((
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1302	1302
1303	1303	(% style="color:red" %)**Note:**
1304	1304
1305		-(((
1306	1306	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1307	1307	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1308	1308	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.
1309	1309	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
1310		-)))
1311	1311
1312	1312	[[image:1654162478620-421.png]]
1313	1313
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1336	1336
1337	1337	[[image:1654162535040-878.png]]
1338	1338
1339		-(((
1340	1340	**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]].
1341		-)))
1342	1342
1343		-(((
1344	1344	**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1345		-)))
1346	1346
1347		-(((
1348	1348	**Step3: **Open flashloader; choose the correct COM port to update.
1349		-)))
1350	1350
1351	1351	(((
1352	1352	(((
1353		-(((
1354	1354	(% 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.
1355	1355	)))
1356	1356	)))
1357		-)))
1358	1358
1359	1359
1360	1360	[[image:image-20220602175818-12.png]]