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Author

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1		-XWiki.Edwin
	1	+XWiki.Xiaoling

Content

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186	186	* Firmware upgradable via program port
187	187	* Counting
188	188
189		-
190	190	== 1.4  Applications ==
191	191
192	192
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197	197	* Smart Cities
198	198	* Smart Factory
199	199
200		-
201	201	== 1.5 Hardware Variants ==
202	202
203	203
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212	212	* 1 x Counting Port
213	213	)))
214	214
215		-
216	216	= 2. Power ON Device =
217	217
218	218
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773	773
774	774	* (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
775	775
776		-
777	777	=== 3.4.1 Common Commands ===
778	778
779	779
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1544	1544	=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1545	1545
1546	1546
1547		-**NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
	1543	+NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1548	1548
1549		-Note: DO pins go to float when device is power off.
1550		-
1551	1551	[[image:1653357531600-905.png]]
1552	1552
1553	1553
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1589	1589
1590	1590	(((
1591	1591	The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1592		-
1593		-**Note**: RO pins go to Open(NO) when device is power off.
1594	1594	)))
1595	1595
1596	1596	[[image:image-20220524100215-9.png]]
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2133	2133	[[image:image-20221006170630-1.png||height="610" width="945"]]
2134	2134
2135	2135
2136		-== 5.8 Can LT22222-L save RO state? ==
	2128	+== 5.8 Can LT22222 save RO state? ==
2137	2137
2138		-
2139	2139	Firmware version needs to be no less than 1.6.0.
2140	2140
2141	2141
2142		-
2143	2143	= 6. Trouble Shooting =
2144	2144
2145	2145
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2202	2202	* (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2203	2203	* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2204	2204
2205		-
2206	2206	= 8. Packing Info =
2207	2207
2208	2208
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2220	2220	* Package Size / pcs : 14.5 x 8 x 5 cm
2221	2221	* Weight / pcs : 170g
2222	2222
	2212	+
2223	2223
2224	2224	= 9. Support =
2225	2225
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2231	2231	Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2232	2232
2233	2233
	2224	+
2234	2234
2235	2235	)))
2236	2236

image-20221112174847-1.png

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1		-XWiki.Xiaoling

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