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...	...	@@ -192,17 +192,12 @@
192	192
193	193	)))
194	194
195		-(((
196		-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
197		-)))
	195	+[[image:1657350625843-586.png]]
198	198
199	199
200		-[[image:1657328756309-230.png]]
201	201
	199	+=== 2.2.3  Insert SIM card ===
202	202
203		-
204		-=== 2.2.2 Insert SIM card ===
205		-
206	206	(((
207	207	Insert the NB-IoT Card get from your provider.
208	208	)))
...	...	@@ -212,19 +212,19 @@
212	212	)))
213	213
214	214
215		-[[image:1657328884227-504.png]]
	210	+[[image:1657351240556-536.png]]
216	216
217	217
218	218
219		-=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
	214	+=== 2.2.4  Connect USB – TTL to N95S31B to configure it ===
220	220
221	221	(((
222	222	(((
223		-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.
224	224	)))
225	225	)))
226	226
227		-[[image:image-20220709092052-2.png]]
	222	+[[image:1657351312545-300.png]]
228	228
229	229	**Connection:**
230	230
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244	244	* Flow Control: (% style="color:green" %)**None**
245	245
246	246	(((
247		-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.
248	248	)))
249	249
250	250	[[image:1657329814315-101.png]]
251	251
252	252	(((
253		-(% 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/]]
254	254	)))
255	255
256	256
257	257
258		-=== 2.2.4 Use CoAP protocol to uplink data ===
	253	+=== 2.2.5  Use CoAP protocol to uplink data ===
259	259
260	260	(% style="color:red" %)Note: if you don't have CoAP server, you can refer this link to set up one: (%%)[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
261	261
...	...	@@ -275,10 +275,12 @@
275	275	)))
276	276
277	277	(((
	273	+
	274	+
278	278	For parameter description, please refer to AT command set
279	279	)))
280	280
281		-[[image:1657330452568-615.png]]
	278	+[[image:1657352146020-183.png]]
282	282
283	283
284	284	(((
...	...	@@ -285,11 +285,11 @@
285	285	After configure the server address and (% style="color:green" %)**reset the device**(%%) (via AT+ATZ ), NDDS75 will start to uplink sensor values to CoAP server.
286	286	)))
287	287
288		-[[image:1657330472797-498.png]]
	285	+[[image:1657352185396-303.png]]
289	289
290	290
291	291
292		-=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
	289	+=== 2.2.6  Use UDP protocol to uplink data(Default protocol) ===
293	293
294	294
295	295	* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink

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