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11	11	== 1.1 What is LT Series I/O Controller ==
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14	14	The Dragino LT series I/O Modules are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as: analog current Input, analog voltage input, relay output, digital input and digital output etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
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18	18	The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
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22	22	The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
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26	26	The use environment includes:
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30	30	1) If user’s area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
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34	34	2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
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38		-[[image:1653295757274-912.png]]
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40	40
41		-== 1.2  Specifications ==
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	30	+
	31	+1.
	32	+11. Specifications
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43	43	**Hardware System:**
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45	45	* STM32L072CZT6 MCU
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50	50	*
51	51	** 20dB Transmit: 34mA@12v
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	44	+
	45	+**Interface for Model: LT33222-L:**
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	47	+* 3 x Digital Input ( Detect Low signal , Max, 6V)
	48	+* 3 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
	49	+* 2 x Relay Output (5A@250VAC / 30VDC)
	50	+* 2 x 0~~20mA Analog Input (res:0.01mA)
	51	+* 2 x 0~~30V Analog Input (res:0.01v)
	52	+* Power Input 7~~ 24V DC.
	53	+*
	54	+
53	53	**Interface for Model: LT22222-L:**
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55	55	* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
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59	59	* 2 x 0~~30V Analog Input (res:0.01v)
60	60	* Power Input 7~~ 24V DC.
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	64	+
62	62	**LoRa Spec:**
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64	64	* Frequency Range:
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80	80	* Automatic RF Sense and CAD with ultra-fast AFC.
81	81	* Packet engine up to 256 bytes with CRC.
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83		-== 1.3 Features ==
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	87	+*
	88	+*1. Features
85	85	* LoRaWAN Class A & Class C protocol
86	86	* Optional Customized LoRa Protocol
87	87	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
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90	90	* Firmware upgradable via program port
91	91	* Counting
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93		-== 1.4  Applications ==
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	99	+*
	100	+*1. Applications
95	95	* Smart Buildings & Home Automation
96	96	* Logistics and Supply Chain Management
97	97	* Smart Metering
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99	99	* Smart Cities
100	100	* Smart Factory
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102		-== 1.5 Hardware Variants ==
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104		-(% border="1" style="background-color:#f7faff; width:500px" %)
105		-|(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:329px" %)**Description**
106		-|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:329px" %)(((
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	110	+
	111	+1.
	112	+11. Hardware Variants
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	114	+
	115	+|**Model**|**Photo**|**Description**
	116	+|**LT33222-L**|[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]]|(((
	117	+* 3 x Digital Input
	118	+* 3 x Digital Output
	119	+* 2 x Relay Output (5A@250VAC / 30VDC)
	120	+* 2 x 0~~20mA Analog Input (res:0.01mA)
	121	+* 2 x 0~~30V Analog Input (res:0.01v)
	122	+* 1 x Counting Port
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	125	+
	126	+|**Model**|**Photo**|**Description**
	127	+|**LT22222-L**|[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.jpg]]|(((
107	107	* 2 x Digital Input (Bi-direction)
108	108	* 2 x Digital Output
109	109	* 2 x Relay Output (5A@250VAC / 30VDC)

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