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54	54	Connection1
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	56	+(((
56	56	How to connect with Energy Meter：
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58	58	Follow the instructions of the electric energy meter to connect the phase line and the neutral line, and then connect 485A+ and 485B- to RS485A and RA485B of RS485-LN respectively.
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60	60	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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62	62	Power Source VIN to RS485-LN VIN+
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64	64	Power Source GND to RS485-LN VIN-
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66	66	Once there is power, the RS485-LN will be on.
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67	67
68	68	[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
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127	127	(% class="box infomessage" %)
128	128	(((
129		-AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
	141	+ AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
130	130	)))
131	131
132	132	a: length for the return of AT+COMMAND
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214	214	==== 1.3.3.2 via LoRaWAN DOWNLINK ====
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216		-[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
	228	+[[image:image-20220512104358-3.png]]
217	217
218	218	(((
219	219	DOWNLINK
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224	224	)))
225	225
226	226	(((
227		-Type Code 0xAF
	239	+**Type Code 0xAF**
228	228	)))
229	229
230	230	(((
	243	+(% class="box infomessage" %)
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231	231	0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
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234	234	(((
235	235	Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
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341	341	)))
342	342
343	343	(((
344		- output:01 03 04 00 00 00 42 7A 02
	359	+ output：01 03 04 00 00 00 42 7A 02
345	345	)))
346	346
347	347	[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]

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