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76	76	)))
77	77
78	78	(((
	79	+
	80	+
79	79	**Interface for Model: LT22222-L:**
80	80	)))
81	81
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99	99	)))
100	100
101	101	(((
	104	+
	105	+
102	102	**LoRa Spec:**
103	103	)))
104	104
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158	158	)))
159	159	* (((
160	160	Packet engine up to 256 bytes with CRC.
161		-
162		-
163	163	)))
164	164
165		-
166		-
167	167	== 1.3 Features ==
168	168
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 ==
180	180
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 ==
191	191
192	192	(% border="1" style="background-color:#f7faff; width:500px" %)
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200	200	* 1 x Counting Port
201	201	)))
202	202
203		-
204	204	= 2. Power ON Device =
205	205
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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320	320	* [1] RO1 relay channel is close and the RO1 LED is ON.
321	321	* [0] RO2 relay channel is open and RO2 LED is OFF;
322	322
	318	+
	319	+
323	323	**LT22222-L:**
324	324
325	325	* [1] DI2 channel is high input and DI2 LED is ON;
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476	476
477	477	(((
478	478	Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
479		-
480		-
481	481	)))
482	482
483	483
	479	+
484	484	=== 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
485	485
486	486
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762	762	)))
763	763
764	764
765		-
766	766	== 3.4 ​Configure LT via AT or Downlink ==
767	767
768	768	User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
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775	775
776	776	* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
777	777
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	775	+
778	778	=== 3.4.1 Common Commands ===
779	779
780	780	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]]