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117		-= 2.  Use NSE01 to communicate with IoT Server =
	117	+= 2.  Use NDDS75 to communicate with IoT Server =
118	118
119	119	== 2.1  How it works ==
120	120
121		-
122	122	(((
123		-The NSE01 is equipped with a NB-IoT module, the pre-loaded firmware in NSE01 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 NSE01.
	122	+The NDDS75 is equipped with a NB-IoT module, the pre-loaded firmware in NDDS75 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 NDDS75.
124	124	)))
125	125
126	126
127	127	(((
128		-The diagram below shows the working flow in default firmware of NSE01:
	127	+The diagram below shows the working flow in default firmware of NDDS75:
129	129	)))
130	130
131		-[[image:image-20220708101605-2.png]]
132		-
133	133	(((
134	134
135	135	)))
136	136
	134	+[[image:1657328659945-416.png]]
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	136	+(((
	137	+
	138	+)))
138	138
139		-== 2.2 ​ Configure the NSE01 ==
140	140
	141	+== 2.2 ​ Configure the NDDS75 ==
141	141
	143	+
142	142	=== 2.2.1 Test Requirement ===
143	143
144		-
145	145	(((
146		-To use NSE01 in your city, make sure meet below requirements:
	147	+To use NDDS75 in your city, make sure meet below requirements:
147	147	)))
148	148
149	149	* Your local operator has already distributed a NB-IoT Network there.
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151	151	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
152	152
153	153	(((
154		-Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NSE01 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
	155	+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
155	155	)))
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157	157
158		-[[image:1657249419225-449.png]]
	159	+[[image:1657328756309-230.png]]
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170	170	)))
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172	172
173		-[[image:1657249468462-536.png]]
	174	+[[image:1657328884227-504.png]]
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176	176
177		-=== 2.2.3 Connect USB – TTL to NSE01 to configure it ===
	178	+=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
178	178
179	179	(((
180	180	(((
181		-User need to configure NSE01 via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NSE01 support AT Commands, user can use a USB to TTL adapter to connect to NSE01 and use AT Commands to configure it, as below.
	182	+User need to configure NDDS75 via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NDDS75 support AT Commands, user can use a USB to TTL adapter to connect to NDDS75 and use AT Commands to configure it, as below.
182	182	)))
183	183	)))
184	184
	186	+[[image:image-20220709092052-2.png]]
185	185
186	186	**Connection:**
187	187
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201	201	* Flow Control: (% style="color:green" %)**None**
202	202
203	203	(((
204		-Make sure the switch is in FLASH position, then power on device by connecting the jumper on NSE01. NSE01 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
	206	+Make sure the switch is in FLASH position, then power on device by connecting the jumper on NDDS75. NDDS75 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
205	205	)))
206	206
207		-[[image:image-20220708110657-3.png]]
	209	+[[image:1657329814315-101.png]]
208	208
209	209	(((
210		-(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[http:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
	212	+(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/]]
211	211	)))
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