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Author

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1		-XWiki.David
	1	+XWiki.Xiaoling

Content

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83	83	* Operating Temperature: -40 ~~ 85°C
84	84
85	85
86		-
87	87	(% style="color:#037691" %)**NB-IoT Spec:**
88	88
89	89	* - B1 @H-FDD: 2100MHz
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94	94	* - B28 @H-FDD: 700MHz
95	95
96	96
97		-
98	98	(% style="color:#037691" %)**Battery:**
99	99
100	100	* Li/SOCI2 un-chargeable battery
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104	104	* Max boost current: 2A, 1 second
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106	106
107		-
108	108	(% style="color:#037691" %)**Power Consumption**
109	109
110	110	* STOP Mode: 10uA @ 3.3v
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176	176	* The local NB-IoT network used the band that NDDS75 supports.
177	177	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
178	178
179		-
180		-
181	181	(((
182	182	Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDDS75 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server.
183	183	)))
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263	263	)))
264	264	* (((
265	265	(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
266		-
267		-
268		-
269	269	)))
270	270
271	271	(((
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292	292	* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
293	293
294	294
295		-
296	296	[[image:1657330501006-241.png]]
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298	298
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312	312	* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
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314	314
315		-
316	316	[[image:1657249978444-674.png]]
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318	318
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332	332	* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
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334	334
335		-
336	336	[[image:image-20220709093918-1.png]]
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338	338
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347	347
348	348	* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
349	349
	339	+(((
	340	+(% style="color:red" %)**NOTE:**
	341	+)))
350	350
351		-
352	352	(((
353		-(% style="color:red" %)**NOTE: By default, the device will send an uplink message every 1 hour.**
	344	+(% style="color:red" %)**1. By default, the device will send an uplink message every 1 hour.**
354	354	)))
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356	356
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920	920	(((
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922	922
923		-
924	924	(% style="color:#037691" %)**Dimension and weight**:
925	925
926	926	* Device Size: 13.0 x 5 x 4.5 cm

image-20220908175246-1.png

Author

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1		-XWiki.David

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1		-55.7 KB

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