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19	19	== 1.1 What is LT Series I/O Controller ==
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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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	53	+
51	51	== 1.2  Specifications ==
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162	162	)))
163	163	* (((
164	164	Packet engine up to 256 bytes with CRC.
165		-)))
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	171	+
	172	+)))
	173	+
169	169	== 1.3 Features ==
170	170
171	171	* LoRaWAN Class A & Class C protocol
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	186	+
181	181	== 1.4  Applications ==
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183	183	* Smart Buildings & Home Automation
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	198	+
192	192	== 1.5 Hardware Variants ==
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194	194	(% border="1" style="background-color:#f7faff; width:500px" %)
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202	202	* 1 x Counting Port
203	203	)))
204	204
205		-
206	206	= 2. Power ON Device =
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208	208	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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283	283	* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
284	284	* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
285	285
286		-
287	287	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
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289	289	The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
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337	337	** DO1 is high in case there is load between DO1 and V+.
338	338	** DO1 LED is off in both case
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340		-
341	341	=== 3.3.2 AT+MOD~=2, (Double DI Counting) ===
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480	480	Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
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482		-
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	488	+
486	486	=== 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
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767		-
768	768	== 3.4 ​Configure LT via AT or Downlink ==
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770	770	User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
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2008	2008	)))
2009	2009
2010	2010	(((
2011		-
	2013	+== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
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	2015	+If the device is not shut down, but directly powered off.
	2016	+
	2017	+It will default that this is a power-off state.
	2018	+
	2019	+In modes 2 to 5, DO RO status and pulse count are saved in flash.
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	2021	+After restart, the status before power failure will be read from flash.
	2022	+
2013	2013	= 6. Trouble Shooting =
2014	2014	)))
2015	2015