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189		-== 2.2 ​ Configure CPN01 ==
	189	+== 2.2 ​ Configure NDS03A ==
190	190
191	191	=== 2.2.1 Test Requirement ===
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194	194	To use NDS03A in your city, make sure to meet below requirements:
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196	196	* Your local operator has already distributed an NB-IoT Network.
197		-* The local NB-IoT network used the band that CPN01 supports.
	197	+* The local NB-IoT network used the band that NDS03A supports.
198	198	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
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200	200	Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDS03A will use** (% style="color:red" %)CoAP(120.24.4.116:5683)(%%)** or raw (% style="color:red" %)**UDP(120.24.4.116:5601) **(%%)or (% style="color:red" %)**MQTT(120.24.4.116:1883) **(%%)or (% style="color:red" %)**TCP(120.24.4.116:5600)protocol**(%%) to send data to the test server.
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218		-=== 2.2.3 Connect USB – TTL to CPN01 and configure it ===
	218	+=== 2.2.3 Connect USB – TTL to NDS03A and configure it ===
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221		-User need to configure CPN01 via serial port to set the (% style="color:red" %)**Server Address** / **Uplink Topic**(%%) to define where and how-to uplink packets. CPN01 support AT Commands, user can use a USB to TTL adapter to connect to CPN01 and use AT Commands to configure it, as below.
	221	+User need to configure NDS03A via serial port to set the (% style="color:red" %)**Server Address** / **Uplink Topic**(%%) to define where and how-to uplink packets. NDS03A support AT Commands, user can use a USB to TTL adapter to connect to NDS03A and use AT Commands to configure it, as below.
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223	223	(% style="color:blue" %)**Connection:**
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242	242	* Flow Control: (% style="color:red" %)**None**
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244		-Make sure the switch is in FLASH position, then power on CPN01 by connecting the (% style="color:orange" %)**Yellow Jumper**(%%).
	244	+Make sure the switch is in FLASH position, then power on NDS03A by connecting the (% style="color:orange" %)**Yellow Jumper**(%%).
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246	246	​[[image:image-20221021110817-7.png]]
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248		-CPN01 will output system info once powered on as below, we can enter the **password: 12345678** to access AT Command input.
	248	+NDS03A will output system info once powered on as below, we can enter the **password: 12345678** to access AT Command input.
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251	251	(% style="color:red" %)**Note: the valid AT Commands can be found at:  **(%%)[[**https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0**>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
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271	271	[[image:image-20221021110948-8.png]]
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274		-After configuring the server address and (% style="color:green" %)**reset CPN01**(%%) (via AT+ATZ ), CPN01 will start to uplink sensor values to the CoAP server.
	274	+After configuring the server address and (% style="color:green" %)**reset CPN01**(%%) (via AT+ATZ ), NDS03A will start to uplink sensor values to the CoAP server.
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276	276	[[image:image-20221021110956-9.png]] ​
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348	348	User can use below command to change the (% style="color:blue" %)**uplink interval**.
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350		-* (% style="color:#037691" %)**AT+TDC=7200      ** (%%) ~/~/ Set Update Interval to 7200s (2 hours)
	350	+* (% style="color:#037691" %)**AT+TDC=14400      ** (%%) ~/~/ Set Update Interval to 14400s (4 hours)
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352	352	(% style="color:red" %)**NOTE:**
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354		-1.  By default, the device will send an uplink message every 1 hour.
	354	+1.  By default, the device will send an uplink message every 4 hour.
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