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53	53
54	54	Connection1
55	55
56		-(((
57	57	How to connect with Energy Meter：
58		-)))
59	59
60		-(((
61	61	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.
62		-)))
63	63
64		-(((
65	65	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
66		-)))
67	67
68		-(((
69	69	Power Source VIN to RS485-LN VIN+
70		-)))
71	71
72		-(((
73	73	Power Source GND to RS485-LN VIN-
74		-)))
75	75
76		-(((
77	77	Once there is power, the RS485-LN will be on.
78		-)))
79	79
80	80	[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
81	81
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138	138
139	139	(% class="box infomessage" %)
140	140	(((
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
	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
142	142	)))
143	143
144	144	a: length for the return of AT+COMMAND
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225	225
226	226	==== 1.3.3.2 via LoRaWAN DOWNLINK ====
227	227
228		-[[image:image-20220512104358-3.png]]
	216	+[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
229	229
230	230	(((
231	231	DOWNLINK
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236	236	)))
237	237
238	238	(((
239		-**Type Code 0xAF**
	227	+Type Code 0xAF
240	240	)))
241	241
242	242	(((
243		-(% class="box infomessage" %)
244		-(((
245	245	0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
246	246	)))
247		-)))
248	248
249	249	(((
250	250	Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
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356	356	)))
357	357
358	358	(((
359		- output：01 03 04 00 00 00 42 7A 02
	344	+ output:01 03 04 00 00 00 42 7A 02
360	360	)))
361	361
362	362	[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]

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