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19	19	== 1.1 What is LT Series I/O Controller ==
20	20
21	21	(((
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22	22	The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
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163	163	)))
164	164	* (((
165	165	Packet engine up to 256 bytes with CRC.
166		-)))
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	171	+
	172	+)))
170	170
171	171	== 1.3 Features ==
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178	178	* Firmware upgradable via program port
179	179	* Counting
180	180
181		-
182		-
183		-
184	184	== 1.4  Applications ==
185	185
186	186	* Smart Buildings & Home Automation
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190	190	* Smart Cities
191	191	* Smart Factory
192	192
193		-
194		-
195		-
196	196	== 1.5 Hardware Variants ==
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198	198	(% border="1" style="background-color:#f7faff; width:500px" %)
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206	206	* 1 x Counting Port
207	207	)))
208	208
209		-
210		-
211		-
212	212	= 2. Power ON Device =
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214	214	The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
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779	779
780	780	* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
781	781
782		-
783	783	=== 3.4.1 Common Commands ===
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785	785	They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
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2011	2011	)))
2012	2012
2013	2013	(((
2014		-
	2007	+== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2015	2015
	2009	+If the device is not shut down, but directly powered off.
	2010	+
	2011	+It will default that this is a power-off state.
	2012	+
	2013	+In modes 2 to 5, DO RO status and pulse count are saved in flash.
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	2015	+After restart, the status before power failure will be read from flash.
	2016	+
2016	2016	= 6. Trouble Shooting =
2017	2017	)))
2018	2018