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14	14	= 1.Introduction =
15	15
16	16	== 1.1 What is LT Series I/O Controller ==
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167	167	* Firmware upgradable via program port
168	168	* Counting
169	169
170		-
171	171	== 1.4  Applications ==
172	172
173	173	* Smart Buildings & Home Automation
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177	177	* Smart Cities
178	178	* Smart Factory
179	179
180		-
181	181	== 1.5 Hardware Variants ==
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183	183	(% border="1" style="background-color:#f7faff; width:500px" %)
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191	191	* 1 x Counting Port
192	192	)))
193	193
194		-
195	195	= 2. Power ON Device =
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197	197	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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269	269	* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
270	270	* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
271	271
272		-
273	273	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
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275	275	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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320	320	** DO1 is high in case there is load between DO1 and V+.
321	321	** DO1 LED is off in both case
322	322
323		-
324	324	=== 3.3.2 AT+MOD~=2, (Double DI Counting) ===
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326	326	**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
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1863	1863	(((
1864	1864	User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
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	1865	+== 5.5 Can i use point to point communication for LT-22222-L? ==
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	1867	+Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
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1867	1867	)))
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