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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
	167	+
	168	+
165	165	== 1.3 Features ==
166	166
167	167	* LoRaWAN Class A & Class C protocol
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172	172	* Firmware upgradable via program port
173	173	* Counting
174	174
	179	+
	180	+
175	175	== 1.4  Applications ==
176	176
177	177	* Smart Buildings & Home Automation
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181	181	* Smart Cities
182	182	* Smart Factory
183	183
	190	+
	191	+
184	184	== 1.5 Hardware Variants ==
185	185
186	186	(% border="1" style="background-color:#f7faff; width:500px" %)
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195	195	)))
196	196
197	197
198		-
199	199	= 2. Power ON Device =
200	200
201	201	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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277	277	* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
278	278
279	279
280		-
281	281	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
282	282
283	283	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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316	316	* [1] RO1 relay channel is close and the RO1 LED is ON.
317	317	* [0] RO2 relay channel is open and RO2 LED is OFF;
318	318
319		-
320	320	**LT22222-L:**
321	321
322	322	* [1] DI2 channel is high input and DI2 LED is ON;
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333	333	** DO1 LED is off in both case
334	334
335	335
336		-
337	337	=== 3.3.2 AT+MOD~=2, (Double DI Counting) ===
338	338
339	339
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631	631	1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
632	632	1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN (% style="color:#4f81bd" %)**CONFIRMED data type.**
633	633
634		-
635	635	**AT Command to set Trigger Condition**:
636	636
637	637	(% style="color:#4f81bd" %)**Trigger base on voltage**:
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711	711
712	712	* Each bits shows if the corresponding trigger has been configured.
713	713
714		-
715	715	**Example:**
716	716
717	717	10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
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723	723
724	724	* Each bits shows which status has been trigger on this uplink.
725	725
726		-
727	727	**Example:**
728	728
729	729	10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
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735	735
736	736	* Each bits shows which status has been trigger on this uplink.
737	737
738		-
739	739	**Example:**
740	740
741	741	00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
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777	777
778	778	* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
779	779
780		-
781	781	=== 3.4.1 Common Commands ===
782	782
783	783	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]]