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283	283
284	284	==== 3.3.2.1 Configure UART settings for RS485 communication ====
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	286	+
286	286	To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. The related commands for UART settings are:
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288		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
289		-|=(% style="width: 126px; background-color:#D9E2F3;color:#0070C0" %)(((
	289	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	290	+|=(% style="width: 126px; background-color:#4F81BD;color:white" %)(((
290	290	**AT Commands**
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	292	+)))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)(((
292	292	**Description**
293		-)))|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)(((
	294	+)))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)(((
294	294	**Example**
295	295	)))
296	296	|(% style="width:126px" %)(((
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353	353	Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
354	354	)))
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356		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
357		-|=(% style="width: 122px; background-color:#D9E2F3;color:#0070C0" %)**AT Commands**|=(% style="width: 198px; background-color:#D9E2F3;color:#0070C0" %)**Description**|=(% style="width: 190px;background-color:#D9E2F3;color:#0070C0" %)**Example**
	357	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	358	+|=(% style="width: 122px; background-color:#4F81BD;color:white" %)**AT Commands**|=(% style="width: 198px; background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 190px;background-color:#4F81BD;color:white" %)**Example**
358	358	|(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)(((
359	359	(((
360	360	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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570	570	== 3.4 Uplink Payload ==
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572	572
573		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
574		-|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
	574	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	575	+|(% style="background-color:#4f81bd; color:white; width:70px" %)(((
575	575	**Size(bytes)**
576		-)))|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:360px" %)(((
	577	+)))|(% style="background-color:#4f81bd; color:white; width:80px" %)**1**|(% style="background-color:#4f81bd; color:white; width:360px" %)(((
577	577	**Length depends on the return from the commands**
578	578	)))
579	579	|(% style="width:90px" %)(((
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1385	1385	To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1386	1386	)))
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1388		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
1389		-|=(% style="width: 156px; background-color:#D9E2F3;color:#0070C0" %)(((
	1389	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1390	+|=(% style="width: 156px; background-color:#4F81BD;color:white" %)(((
1390	1390	**Command example**
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	1392	+)))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)(((
1392	1392	**Function**
1393	1393	)))
1394	1394	|(% style="width:156px" %)(((
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1469	1469	(% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1470		-|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Button**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
	1471	+|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Button**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1471	1471	|(% 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**
1472	1472	|(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485
1473	1473	|(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
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1478	1478	(% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1479		-|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**LEDs**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
	1480	+|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**LEDs**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1480	1480	|PWR|Always on if there is power
1481	1481	|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.
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