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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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79	79	**Interface for Model: LT22222-L:**
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102	102	**LoRa Spec:**
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159	159	* (((
160	160	Packet engine up to 256 bytes with CRC.
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163	163	)))
164	164
165		-
166		-
167	167	== 1.3 Features ==
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169	169	* LoRaWAN Class A & Class C protocol
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174	174	* Firmware upgradable via program port
175	175	* Counting
176	176
177		-
178		-
179	179	== 1.4  Applications ==
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181	181	* Smart Buildings & Home Automation
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185	185	* Smart Cities
186	186	* Smart Factory
187	187
188		-
189		-
190	190	== 1.5 Hardware Variants ==
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192	192	(% border="1" style="background-color:#f7faff; width:500px" %)
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200	200	* 1 x Counting Port
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203		-
204	204	= 2. Power ON Device =
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206	206	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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281	281	* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
282	282	* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
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284		-
285	285	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
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287	287	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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335	335	** DO1 is high in case there is load between DO1 and V+.
336	336	** DO1 LED is off in both case
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338		-
339	339	=== 3.3.2 AT+MOD~=2, (Double DI Counting) ===
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478	478	Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
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480		-
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	482	+
484	484	=== 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
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765		-
766	766	== 3.4 ​Configure LT via AT or Downlink ==
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768	768	User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
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2006	2006	)))
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2009		-
	2007	+== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
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	2009	+If the device is not shut down, but directly powered off.
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	2011	+It will default that this is a power-off state.
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	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.
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2011	2011	= 6. Trouble Shooting =
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