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Author

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1		-XWiki.Edwin
	1	+XWiki.Xiaoling

Content

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14	14	= 1.Introduction =
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16	16	== 1.1 What is LT Series I/O Controller ==
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48	48	== 1.2  Specifications ==
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51	51	**Hardware System:**
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73	73	(((
74	74	**Interface for Model: LT22222-L:**
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93	93	Power Input 7~~ 24V DC.
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96	96	(((
97	97	**LoRa Spec:**
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160	160	== 1.3 Features ==
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162	162	* LoRaWAN Class A & Class C protocol
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167	167	* Firmware upgradable via program port
168	168	* Counting
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170	170	== 1.4  Applications ==
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172	172	* Smart Buildings & Home Automation
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176	176	* Smart Cities
177	177	* Smart Factory
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179	179	== 1.5 Hardware Variants ==
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189	189	* 1 x Counting Port
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192	192	= 2. Power ON Device =
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194	194	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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200	200	[[image:1653297104069-180.png]]
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203	203	= 3. Operation Mode =
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205	205	== 3.1 How it works? ==
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217	217	== 3.2 Example to join LoRaWAN network ==
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255	255	[[image:1653298044601-602.png||height="405" width="709"]]
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258	258	== 3.3 Uplink Payload ==
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260	260	There are five working modes + one interrupt mode on LT for different type application:
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266	266	* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
267	267	* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
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269	269	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
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271	271	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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301	301	* [1] RO1 relay channel is close and the RO1 LED is ON.
302	302	* [0] RO2 relay channel is open and RO2 LED is OFF;
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304	304	**LT22222-L:**
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306	306	* [1] DI2 channel is high input and DI2 LED is ON;
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316	316	** DO1 is high in case there is load between DO1 and V+.
317	317	** DO1 LED is off in both case
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319	319	=== 3.3.2 AT+MOD~=2, (Double DI Counting) ===
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321	321	**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
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412	412	=== 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
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414	414	**LT22222-L**: This mode the DI1 is used as a counting pin.