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14		-= 1. Introduction =
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16		-== 1.1 ​What is NDS01 NB-IoT Door Sensor ==
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	34	+1. Introduction
	35	+11. ​What is NDS01 NB-IoT Door Sensor
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19	19	The Dragino NDS01 is a NB-IOT Door Sensor for Internet of Things solution. It is used to detect the open/close event for door and uplink the event to IoT server via NB-IoT network.
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21	21	Besides open/close event, NDS01 also has an internal temperature and humidity sensor which can detect the temperature and humidity inside the sensor*.
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23	23	**NarrowBand-Internet of Things (NB-IoT)** is a 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.
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25	25	NDS01 is powered by 2 x AAA batteries for long term use.
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27	27	*The measured temperature is 2~~3 degree higher than the actually environment temperature out of NDS01.
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35		-== 1.2 Specifications ==
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	59	+11. ​Specifications
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37	37	**Common DC Characteristics:**
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63	63	​
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65		-== 1.3 Features ==
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	90	+*1. ​Features
67	67	* NB-IoT Bands: B1/B3/B5/B8/B20/B28 @H-FDD
68	68	* Ultra low power consumption
69	69	* Door Open / Close Detect
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84		-= 2. Use NDS01 to communicate with IoT Server =
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86		-== 2.1 How it works ==
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	112	+1. Use NDS01 to communicate with IoT Server
	113	+11. How it works
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88	88	The NDS01 is equipped with a NB-IoT module, the pre-loaded firmware in NDS01 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NDS01.
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96		-== 2.2 Configure the NDS01 ==
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98		-=== 2.2.1 Test Requirement ===
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	125	+11. Configure the NDS01
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101	101	To use NDS01 in your city, make sure meet below requirements:
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114		-=== 2.2.1 Insert SIM card ===
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	144	+111. Insert SIM card
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116	116	Insert the NB-IoT Card get from your provider.
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