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202	202	* 1 x Counting Port
203	203	)))
204	204
	205	+
	206	+
205	205	= 2. Power ON Device =
206	206
207	207	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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213	213	[[image:1653297104069-180.png]]
214	214
215	215
	218	+
216	216	= 3. Operation Mode =
217	217
218	218	== 3.1 How it works? ==
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227	227
228	228	)))
229	229
	233	+
	234	+
230	230	== 3.2 Example to join LoRaWAN network ==
231	231
232	232	(((
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268	268	[[image:1653298044601-602.png||height="405" width="709"]]
269	269
270	270
	276	+
271	271	== 3.3 Uplink Payload ==
272	272
273	273	There are five working modes + one interrupt mode on LT for different type application:
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279	279	* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
280	280	* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
281	281
	288	+
	289	+
282	282	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
283	283
284	284	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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314	314	* [1] RO1 relay channel is close and the RO1 LED is ON.
315	315	* [0] RO2 relay channel is open and RO2 LED is OFF;
316	316
	325	+
317	317	**LT22222-L:**
318	318
319	319	* [1] DI2 channel is high input and DI2 LED is ON;
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329	329	** DO1 is high in case there is load between DO1 and V+.
330	330	** DO1 LED is off in both case
331	331
	341	+
	342	+
332	332	=== 3.3.2 AT+MOD~=2, (Double DI Counting) ===
333	333
334	334	**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
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422	422	)))
423	423
424	424
	436	+
425	425	=== 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
426	426
427	427	**LT22222-L**: This mode the DI1 is used as a counting pin.
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466	466
467	467	)))
468	468
	481	+
	482	+
469	469	=== 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
470	470
471	471	**LT22222-L**: This mode the DI1 is used as a counting pin.
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547	547	)))
548	548
549	549
	564	+
550	550	=== 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
551	551
552	552	**LT22222-L**: This mode the DI1 is used as a counting pin.
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591	591
592	592	)))
593	593
	609	+
	610	+
594	594	=== 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
595	595
596	596	(% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
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714	714	When device got this command, it will send the MOD6 payload.
715	715
716	716
	734	+
717	717	=== 3.3.7 Payload Decoder ===
718	718
719	719	(((
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722	722
723	723	)))
724	724
	743	+
	744	+
725	725	== 3.4 ​Configure LT via AT or Downlink ==
726	726
727	727	User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
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734	734
735	735	* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
736	736
	757	+
	758	+
737	737	=== 3.4.1 Common Commands ===
738	738
739	739	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]]
740	740
741	741
	764	+
742	742	=== 3.4.2 Sensor related commands ===
743	743
744	744	==== 3.4.2.1 Set Transmit Interval ====
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762	762	)))
763	763
764	764
	788	+
765	765	==== 3.4.2.2 Set Work Mode (AT+MOD) ====
766	766
767	767	Set work mode.
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783	783	)))
784	784
785	785
	810	+
786	786	==== 3.4.2.3 Poll an uplink ====
787	787
788	788	* AT Command:
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799	799	**Example**: 0x08FF, ask device to send an Uplink
800	800
801	801
	827	+
802	802	==== 3.4.2.4 Enable Trigger Mode ====
803	803
804	804	Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
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822	822	)))
823	823
824	824
	851	+
825	825	==== 3.4.2.5 Poll trigger settings ====
826	826
827	827	Poll trigger settings,
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838	838	)))
839	839
840	840
	868	+
841	841	==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
842	842
843	843	Enable Disable DI1/DI2/DI2 as trigger,