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166	166
167	167	[[image:image-20220709150546-2.png]]
168	168
	169	+
169	169	=== 2.2.1 Test Requirement ===
170	170
171		-(((
172		-To use NDDS75 in your city, make sure meet below requirements:
173		-)))
174	174
	173	+To use N95S31B in your city, make sure meet below requirements:
	174	+
175	175	* Your local operator has already distributed a NB-IoT Network there.
176		-* The local NB-IoT network used the band that NSE01 supports.
	176	+* The local NB-IoT network used the band that N95S31B 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	+Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.
	181	+
	182	+N95S31B supports different communication protocol such as :
	183	+
179	179	(((
180		-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
181		-)))
	185	+* CoAP  ((% style="color:red" %)120.24.4.116:5683(%%))
	186	+* raw UDP  ((% style="color:red" %)120.24.4.116:5601(%%))
	187	+* MQTT  ((% style="color:red" %)120.24.4.116:1883(%%))
	188	+* TCP  ((% style="color:red" %)120.24.4.116:5600(%%))
182	182
	190	+We will show how to use with each protocol. The IP addresses above are our test server. User need to change to point their corresponding server.
183	183
184		-[[image:1657328756309-230.png]]
	192	+
	193	+)))
185	185
	195	+[[image:1657350625843-586.png]]
186	186
187	187
188		-=== 2.2.2 Insert SIM card ===
189	189
	199	+=== 2.2.3  Insert SIM card ===
	200	+
190	190	(((
191	191	Insert the NB-IoT Card get from your provider.
192	192	)))
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196	196	)))
197	197
198	198
199		-[[image:1657328884227-504.png]]
	210	+[[image:1657351240556-536.png]]
200	200
201	201
202	202
203		-=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
	214	+=== 2.2.3 Connect USB – TTL to N95S31B to configure it ===
204	204
205	205	(((
206	206	(((
207		-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.
	218	+User need to configure N95S31B via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. N95S31B support AT Commands, user can use a USB to TTL adapter to connect to N95S31B and use AT Commands to configure it, as below.
208	208	)))
209	209	)))
210	210
211		-[[image:image-20220709092052-2.png]]
	222	+[[image:1657351312545-300.png]]
212	212
213	213	**Connection:**
214	214
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228	228	* Flow Control: (% style="color:green" %)**None**
229	229
230	230	(((
231		-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.
	242	+Make sure the switch is in FLASH position, then power on device by connecting the jumper on N95S31B. N95S31B will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
232	232	)))
233	233
234	234	[[image:1657329814315-101.png]]
235	235
236	236	(((
237		-(% 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/]]
	248	+(% style="color:red" %)Note: the valid AT Commands can be found at:  (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/]]
238	238	)))
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