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Author

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1		-XWiki.ting
	1	+XWiki.Bei

Content

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213	213	* (% style="color:#037691" %)**AT+PRO=2   ** (%%) ~/~/  Set to use UDP protocol to uplink
214	214	* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5601     ** (%%) ~/~/  to set UDP server address and port
	215	+* (% style="color:#037691" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
215	215
216	216	​ [[image:image-20220907171221-11.png]]
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633	633	AT+URI :  Resource parameters
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635	635
	637	+(% style="color:#037691" %)**UDP Management**
	638	+
	639	+AT+CFM :  Upload confirmation mode (only valid for UDP)
	640	+
	641	+
636	636	(% style="color:#037691" %)**MQTT Management**
637	637
638	638	AT+CLIENT  :  Get or Set MQTT client
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686	686	This means sensor is trying to join the NB-IoT network but fail. Please see this link for **//[[trouble shooting for signal strenght:99>>doc:Main.CSQ\:99,99.WebHome]]//**.
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688	688
689		-== 6.4 Possible reasons why the device is unresponsive： ==
	695	+== 5.3 Possible reasons why the device is unresponsive： ==
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691	691
692	692	​1. Check whether the battery voltage is lower than 2.8V