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161		-== 2.2 ​ Configure the NDDS75 ==
	161	+== 2.2 ​ Configure the N95S31B ==
162	162
163	163
	164	+=== 2.2.1  Power On N95S31B ===
	165	+
	166	+
	167	+[[image:image-20220709150546-2.png]]
	168	+
	169	+
164	164	=== 2.2.1 Test Requirement ===
165	165
166		-(((
167		-To use NDDS75 in your city, make sure meet below requirements:
168		-)))
169	169
	173	+To use N95S31B in your city, make sure meet below requirements:
	174	+
170	170	* Your local operator has already distributed a NB-IoT Network there.
171		-* The local NB-IoT network used the band that NSE01 supports.
	176	+* The local NB-IoT network used the band that N95S31B supports.
172	172	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
173	173
	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	+
174	174	(((
175		-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
176		-)))
	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(%%))
177	177
	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.
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179		-[[image:1657328756309-230.png]]
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	193	+)))
180	180
	195	+[[image:1657350625843-586.png]]
181	181
182	182
183		-=== 2.2.2 Insert SIM card ===
184	184
	199	+=== 2.2.3  Insert SIM card ===
	200	+
185	185	(((
186	186	Insert the NB-IoT Card get from your provider.
187	187	)))
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194		-[[image:1657328884227-504.png]]
	210	+[[image:1657351240556-536.png]]
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197	197
198		-=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
	214	+=== 2.2.3 Connect USB – TTL to N95S31B to configure it ===
199	199
200	200	(((
201	201	(((
202		-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.
203	203	)))
204	204	)))
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206		-[[image:image-20220709092052-2.png]]
	222	+[[image:1657351312545-300.png]]
207	207
208	208	**Connection:**
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223	223	* Flow Control: (% style="color:green" %)**None**
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225	225	(((
226		-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.
227	227	)))
228	228
229	229	[[image:1657329814315-101.png]]
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231	231	(((
232		-(% 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/]]
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