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795	795
796	796	== (% data-sider-select-id="765eceff-93b1-40ee-800b-b7b7d022ef8a" %)6.5 What is the Downlink Command by the NB device?(%%) ==
797	797
	798	+(% data-sider-select-id="bb6e9353-0c3f-473c-938d-4b416c9a03e6" %)
	799	+=== UDP: ===
798	798
799		-NB devices use downlink commands in Json format.
	801	+(% data-sider-select-id="14a4790e-7faa-4508-a4dd-7605a53f1cb3" %)
800	800	Its downlink command is the same as the AT command, but brackets are required.
801	801	Example:
802	802
803	803	{AT+TDC=300}
804	804
	807	+
	808	+(% data-sider-select-id="90b80f1a-e924-4c8a-afc5-4429e019a657" %)
	809	+=== MQTT: ===
	810	+
	811	+Json：
	812	+
	813	+The Json format in MQTT mode needs to be configured with all commands.
	814	+If you have configurations that need to be changed, please change them in the template below.
	815	+Template:
	816	+
	817	+{
	818	+"AT+SERVADDR":"119.91.62.30,1882",
	819	+"AT+CLIENT":"JwcXKjQBNhQ2JykDDAA5Ahs",
	820	+"AT+UNAME":"usenamedragino",
	821	+"AT+PWD":"passworddragino",
	822	+"AT+PUBTOPIC":"123",
	823	+"AT+SUBTOPIC":"321",
	824	+"AT+TDC":"7200",
	825	+"AT+INTMOD":"0",
	826	+"AT+APN":"NULL",
	827	+"AT+5VT":"0",
	828	+"AT+PRO":"3,5",
	829	+"AT+TR":"900",
	830	+"AT+NOUD":"0",
	831	+"AT+CSQTIME":"5",
	832	+"AT+DNSTIMER":"0",
	833	+"AT+TLSMOD":"0,0",
	834	+"AT+MQOS":"0",
	835	+"AT+TEMPALARM1":"0",
	836	+"AT+TEMPALARM2":"10",
	837	+"AT+TEMPALARM3":"0"
	838	+}
	839	+
	840	+Hex：
	841	+
	842	+MQTT's hex format. Since many commands need to support strings, only a few commands are supported.
	843	+
	844	+The supported commands are consistent with LoRaWAN's hex commands.
	845	+Please refer to the following link to obtain the hex format:
	846	+
	847	+[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
	848	+
805	805