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Author

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1		-XWiki.Edwin
	1	+XWiki.David

Content

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23	23	1. Power On End Node
24	24	1. [[Configure APN>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20configure%20APN%20in%20the%20node/]] in the sensor (AT+APN=<APN>), example AT+APN=iot.1nce.net
25	25
26		-[[image:image-20240208102804-1.png||height="286" width="696"]]
	26	+[[image:image-20240602220856-1.png]]
27	27
28		-[[image:image-20230808205045-1.png||height="293" width="438"]]
29	29
	29	+放一张如何插卡图片。
	30	+
	31	+
30	30	After doing above, the end nodes should be able to attach to NB-IoT network .
31	31
32	32	The -CB and -CS models support (% style="color:blue" %)**LTE Cat NB2 and LTE-M (CAT-M1)**(%%), with below frequency band: multiple frequency bands of
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49	49	|(% style="width:117px" %)China Mobile|(% style="width:151px" %)No need configure|(% style="width:406px" %)China Mainland, HongKong|(% style="width:351px" %) |(% style="width:120px" %)
50	50	|(% style="width:117px" %)China Telecom|(% style="width:151px" %)ctnb|(% style="width:406px" %)China Mainland|(% style="width:351px" %) |(% style="width:120px" %)
51	51
52		-
53	53	== 2.2 Speed Up Network Attach time ==
54	54
55	55	**BG95-M2** supports multi bands (% style="color:blue" %)**in NB-IoT and LTE-M. **(%%) It will search one by one and try to attach, this will take a lot of time and even cause attach fail and show **Signal Strenght:99**.
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60	60	* AT+COPS=1,2,"50501",8
61	61	* AT+QCFG="band",0,0x8000000,0x8000000,1
62	62
63		-
64	64	After connection is successful, user can use (% style="color:#037691" %)**AT+QENG="servingcell"**(%%) to check which band is actually in used.
65	65
66	66	AT+QENG="servingcell"
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100	100
101	101	[[image:image-20230802112413-3.png]]
102	102
	103	+== 3.2 General COAP Connection ==
	104	+
	105	+The NB-IoT Sensor can send packet to server use COAP protocol.
	106	+
	107	+Below are the commands.
	108	+
	109	+(% style="color:blue" %)**AT Commands:**
	110	+
	111	+* (% style="color:#037691" %)**AT+PRO=1,0**   (%%) ~/~/ Set to use COAP protocol to uplink, Payload Type select Hex payload.
	112	+
	113	+* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5683** (%%) ~/~/ Set COAP server address and port
	114	+
	115	+* (% style="color:#037691" %)**AT+URI1=11,"I"**  (%%) ~/~/  Configure CoAP Message Options
	116	+* (% style="color:#037691" %)**AT+URI2=11,"aaa05e26-4d6d-f01b-660e-1d8de4a3bfe1"**  (%%) ~/~/ Configure CoAP Message Options
	117	+
	118	+(% class="wikigeneratedid" %)
	119	+=== 3.2.1 Uplink Example ===
	120	+
	121	+
	122	+
103	103	== 3.2 General MQTT Connection ==
104	104
105	105	The NB-IoT Sensor can send packet to server use MQTT protocol.

image-20240602220856-1.png

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	1	+XWiki.Edwin

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	1	+250.9 KB

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