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51	51	== 1.2  Specifications ==
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54	54	**Hardware System:**
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73	73	)))
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76	76	(((
77	77	**Interface for Model: LT22222-L:**
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96	96	Power Input 7~~ 24V DC.
97	97	)))
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99	99	(((
100	100	**LoRa Spec:**
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	168	+
163	163	== 1.3 Features ==
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165	165	* LoRaWAN Class A & Class C protocol
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170	170	* Firmware upgradable via program port
171	171	* Counting
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	180	+
173	173	== 1.4  Applications ==
174	174
175	175	* Smart Buildings & Home Automation
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179	179	* Smart Cities
180	180	* Smart Factory
181	181
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	191	+
182	182	== 1.5 Hardware Variants ==
183	183
184	184	(% border="1" style="background-color:#f7faff; width:500px" %)
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192	192	* 1 x Counting Port
193	193	)))
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195	195	= 2. Power ON Device =
196	196
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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203	203	[[image:1653297104069-180.png]]
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	218	+
206	206	= 3. Operation Mode =
207	207
208	208	== 3.1 How it works? ==
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220	220	== 3.2 Example to join LoRaWAN network ==
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258	258	[[image:1653298044601-602.png||height="405" width="709"]]
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	276	+
261	261	== 3.3 Uplink Payload ==
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263	263	There are five working modes + one interrupt mode on LT for different type application:
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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
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272	272	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
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274	274	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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304	304	* [1] RO1 relay channel is close and the RO1 LED is ON.
305	305	* [0] RO2 relay channel is open and RO2 LED is OFF;
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307	307	**LT22222-L:**
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309	309	* [1] DI2 channel is high input and DI2 LED is ON;