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321	321	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
322	322	|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
323	323	|AT+CFGDEV|(% style="width:110px" %)(((
324		-(((
325	325	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
326		-)))
327	327
328		-(((
329	329	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
330		-)))
331	331
332		-(((
333	333	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
334		-)))
335	335	)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
336	336
337	337
...	...	@@ -1259,9 +1259,7 @@
1259	1259	)))
1260	1260
1261	1261
1262		-(((
1263	1263	If device already joined network:
1264		-)))
1265	1265
1266	1266	(% class="box infomessage" %)
1267	1267	(((
...	...	@@ -1300,12 +1300,10 @@
1300	1300
1301	1301	(% style="color:red" %)**Note:**
1302	1302
1303		-(((
1304	1304	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1305	1305	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1306	1306	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.
1307	1307	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
1308		-)))
1309	1309
1310	1310	[[image:1654162478620-421.png]]
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