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...	...	@@ -41,14 +41,10 @@
41	41	)))
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43	43	(((
44		-NarrowBand-Internet of Things (NB-IoT) is a (% style="color:blue" %)**standards-based low power wide area (LPWA) technology**(%%) developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity, and spectrum efficiency, especially in deep coverage.
	44	+NarrowBand-Internet of Things (NB-IoT) is a (% style="color:blue" %)**standards-based low power wide area (LPWA) technologyTCP, MQTT, UDP, and CoAP**(%%) for different application requirements.
45	45	)))
46	46
47	47	(((
48		-NDS03A supports different uplink methods including (% style="color:blue" %)**TCP, MQTT, UDP, and CoAP**(%%) for different application requirements.
49		-)))
50		-
51		-(((
52	52	NDS03A is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long-term use of up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
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...	...	@@ -114,12 +114,12 @@
114	114
115	115	(% style="color:blue" %)**NB-IoT Spec:**
116	116
117		-* B1 @H-FDD: 2100MHz
118		-* B3 @H-FDD: 1800MHz
119		-* B8 @H-FDD: 900MHz
120		-* B5 @H-FDD: 850MHz
121		-* B20 @H-FDD: 800MHz
122		-* B28 @H-FDD: 700MHz
	113	+* - B1 @H-FDD: 2100MHz
	114	+* - B3 @H-FDD: 1800MHz
	115	+* - B8 @H-FDD: 900MHz
	116	+* - B5 @H-FDD: 850MHz
	117	+* - B20 @H-FDD: 800MHz
	118	+* - B28 @H-FDD: 700MHz
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...	...	@@ -365,6 +365,8 @@
365	365	)))
366	366	|(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.7A0Timestamp"]]|(% style="width:115px" %)Door Status(pb14)|(% style="width:92px" %)door open num(pb14)|(% style="width:99px" %)last open time(pb14)|(% style="width:67px" %)Time stamp|(% style="width:74px" %)...
367	367
	364	+
	365	+
368	368	(% style="color:blue" %)**When AT+TTRCHANNEL=2:**
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370	370
...	...	@@ -376,11 +376,11 @@
376	376	|(% style="width:80px" %)**1**|(% style="width:80px" %)**1**|(% style="width:88px" %)**3**|(% style="width:81px" %)**3**|(% style="width:50px" %)**4**|(% style="width:75px" %)**1**|(% style="width:75px" %)**3**
377	377	|(% style="width:59px" %)Door Status(pb15)|(% style="width:67px" %)[[Alarm Status>>||anchor="H2.7A0AlarmBaseonTimeout"]](pb15)|(% style="width:88px" %)door open num(pb15)|(% style="width:81px" %)last open time(pb15)|(% style="width:50px" %)[[Time stamp>>||anchor="H2.4.7A0Timestamp"]]|(% style="width:66px" %)Door Status(pb14)|(% style="width:92px" %)door open num(pb14)
378	378
379		-(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
380		-|(% style="width:100px" %)**3**|(% style="width:80px" %)**1**|(% style="width:90px" %)**3**|(% style="width:90px" %)**3**|(% style="width:70px" %)**4**|(% style="width:80px" %)(((
	377	+(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
	378	+|(% style="width:90px" %)**3**|(% style="width:80px" %)**1**|(% style="width:90px" %)**3**|(% style="width:90px" %)**3**|(% style="width:70px" %)**4**|(% style="width:80px" %)(((
381	381	**1-32 group**
382	382	)))
383		-|(% style="width:102px" %)last open time(pb14)|(% style="width:93px" %)Door Status(pb15)|(% style="width:91px" %)door open num(pb15)|(% style="width:100px" %)last open time(pb15)|(% style="width:63px" %)[[Time stamp>>||anchor="H2.4.7A0Timestamp"]]|(% style="width:87px" %)......
	381	+|(% style="width:102px" %)last open time (pb14)|(% style="width:93px" %)Door Status(pb15)|(% style="width:91px" %)door open num(pb15)|(% style="width:100px" %)last open time(pb15)|(% style="width:63px" %)[[Time stamp>>||anchor="H2.4.7A0Timestamp"]]|(% style="width:87px" %)......
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385	385	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDS03A uplink data.
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...	...	@@ -409,7 +409,7 @@
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410	410	* (% style="color:#037691" %)**door open num: **(%%)0x000016 =22
411	411
412		-* (% style="color:#037691" %)**last open time:   **(%%)0x000017 =23
	410	+* (% style="color:#037691" %)**last open time:  **(%%)0x000017 =23
413	413
414	414	* (% style="color:#037691" %)**Timestamp:**(%%) 0x637590df =1668649183 (Unix Time)
415	415
...	...	@@ -721,7 +721,6 @@
721	721
722	722	The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]]
723	723
724		-
725	725	[[image:image-20221118094449-6.png]] ​
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727	727