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1 1  (% style="text-align:center" %)
2 2  [[image:image-20220523163353-1.jpeg||height="604" width="500"]]
3 3  
4 +**LT-22222-L LoRa IO Controller User Manual **
4 4  
5 -1. Introduction
6 -11. What is LT Series I/O Controller
7 7  
8 8  
9 -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.
10 10  
9 += 1.Introduction =
11 11  
12 -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.
11 +== 1.1 What is LT Series I/O Controller ==
13 13  
13 +(((
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.
15 +)))
14 14  
17 +(((
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.
19 +)))
20 +
21 +(((
15 15  The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
23 +)))
16 16  
25 +(((
17 17  The use environment includes:
27 +)))
18 18  
29 +(((
19 19  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.
31 +)))
20 20  
33 +(((
21 21  2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
35 +)))
22 22  
37 +(((
38 +[[image:1653295757274-912.png]]
39 +)))
23 23  
24 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
41 +== 1.2  Specifications ==
25 25  
26 -
27 -
28 -
29 -1.
30 -11. Specifications
31 -
32 32  **Hardware System:**
33 33  
34 34  * STM32L072CZT6 MCU
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35 35  * SX1276/78 Wireless Chip
36 36  * Power Consumption:
37 37  ** Idle: 4mA@12v
38 -
39 -*
40 40  ** 20dB Transmit: 34mA@12v
41 41  
42 -
43 -**Interface for Model: LT33222-L:**
44 -
45 -* 3 x Digital Input ( Detect Low signal , Max, 6V)
46 -* 3 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
47 -* 2 x Relay Output (5A@250VAC / 30VDC)
48 -* 2 x 0~~20mA Analog Input (res:0.01mA)
49 -* 2 x 0~~30V Analog Input (res:0.01v)
50 -* Power Input 7~~ 24V DC.
51 -*
52 -
53 53  **Interface for Model: LT22222-L:**
54 54  
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.
61 61  
62 -
63 63  **LoRa Spec:**
64 64  
65 65  * Frequency Range:
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81 81  * Automatic RF Sense and CAD with ultra-fast AFC.
82 82  * Packet engine up to 256 bytes with CRC.
83 83  
81 +== 1.3 Features ==
84 84  
85 -*
86 -*1. Features
87 87  * LoRaWAN Class A & Class C protocol
88 88  * Optional Customized LoRa Protocol
89 89  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
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92 92  * Firmware upgradable via program port
93 93  * Counting
94 94  
91 +== 1.4  Applications ==
95 95  
96 -
97 -*
98 -*1. Applications
99 99  * Smart Buildings & Home Automation
100 100  * Logistics and Supply Chain Management
101 101  * Smart Metering
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103 103  * Smart Cities
104 104  * Smart Factory
105 105  
100 +== 1.5 Hardware Variants ==
106 106  
107 -
108 -
109 -1.
110 -11. Hardware Variants
111 -
112 -
113 -|**Model**|**Photo**|**Description**
114 -|**LT33222-L**|[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]]|(((
115 -* 3 x Digital Input
116 -* 3 x Digital Output
117 -* 2 x Relay Output (5A@250VAC / 30VDC)
118 -* 2 x 0~~20mA Analog Input (res:0.01mA)
119 -* 2 x 0~~30V Analog Input (res:0.01v)
120 -* 1 x Counting Port
121 -)))
122 -
123 -
124 -|**Model**|**Photo**|**Description**
125 -|**LT22222-L**|[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.jpg]]|(((
102 +(% border="1" style="background-color:#f7faff; width:540px" %)
103 +|(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
104 +|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
126 126  * 2 x Digital Input (Bi-direction)
127 127  * 2 x Digital Output
128 128  * 2 x Relay Output (5A@250VAC / 30VDC)
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131 131  * 1 x Counting Port
132 132  )))
133 133  
113 += 2. Power ON Device =
134 134  
135 -
136 -1.
137 -11. Firmware Change log
138 -
139 -[[**LT Image files**>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]**:**
140 -
141 -http:~/~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/
142 -
143 -
144 -**Change log:**
145 -
146 -[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/&file=changelog>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/&file=changelog]]
147 -
148 -
149 -
150 -1. Power ON Device
151 -
152 -
153 153  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.
154 154  
117 +(((
155 155  PWR will on when device is properly powered.
119 +)))
156 156  
157 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
121 +[[image:1653297104069-180.png]]
158 158  
123 += 3. Operation Mode =
159 159  
125 +== 3.1 How it works? ==
160 160  
127 +The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on **TX LED** will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. **TX LED** will be on for 5 seconds after joined in network. When there is message from server, the **RX LED** will be on for 1 second. 
161 161  
162 -
163 -1. Operation Mode
164 -11. How it works?
165 -
166 -The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on TX LED will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. TX LED will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second. 
167 -
168 -
169 169  In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>path:#AT_Command]] to set the keys in the devices.
170 170  
131 +3.2 Example to join LoRaWAN network
171 171  
172 -1.
173 -11. Example to join LoRaWAN network
174 -
175 175  This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here.
176 176  
177 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
135 +[[image:image-20220523172350-1.png||height="266" width="864"]]
178 178  
179 179  
138 +(((
180 180  The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
140 +)))
181 181  
142 +(((
182 182  **Step 1**: Create a device in TTN with the OTAA keys from LT IO controller.
144 +)))
183 183  
146 +(((
184 184  Each LT is shipped with a sticker with the default device EUI as below:
148 +)))
185 185  
186 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
187 187  
188 188  
189 -
190 -
191 191  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
192 192  
193 193  Add APP EUI in the application.
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