Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 131.1 >
edited by Mengting Qiu
on 2024/03/04 14:47
To version < 139.1 >
edited by Dilisi S
on 2024/10/30 04:13
>
Change comment: more edits done

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.ting
1 +XWiki.pradeeka
Content
... ... @@ -19,36 +19,30 @@
19 19  
20 20  = 1.Introduction =
21 21  
22 -== 1.1 What is LT Series I/O Controller ==
22 +== 1.1 What is the LT-22222-L I/O Controller? ==
23 23  
24 24  (((
25 -
26 -
27 27  (((
28 -The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
29 -)))
30 -)))
26 +The Dragino (% style="color:blue" %)**LT-22222-L I/O Controller**(%%) is an advanced LoRaWAN device designed to provide seamless wireless long-range connectivity with various I/O options, including analog current and voltage inputs, digital inputs and outputs, and relay outputs.
31 31  
32 -(((
33 -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, building automation, and so on.
28 +The LT-22222-L I/O Controller simplifies and enhances I/O monitoring and controlling. It is ideal for professional applications in wireless sensor networks, including irrigation systems, smart metering, smart cities, building automation, and more. These controllers are designed for easy, cost-effective deployment using LoRa wireless technology.
34 34  )))
35 -
36 -(((
37 -The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
38 38  )))
39 39  
40 40  (((
41 -The use environment includes:
33 +With the LT-22222-L I/O Controller, users can transmit data over ultra-long distances with low power consumption using LoRa, a spread-spectrum modulation technique derived from chirp spread spectrum (CSS) technology that operates on license-free ISM bands.
42 42  )))
43 43  
44 -(((
45 -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.
46 -)))
36 +> The LT Series I/O Controllers are designed for easy, low-cost installation on LoRaWAN networks.
47 47  
48 48  (((
49 -2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
39 +You can connect the LT-22222-L I/O Controller to a LoRaWAN network service provider in several ways:
50 50  
51 -
41 +* If there is public LoRaWAN network coverage in the area where you plan to install the device (e.g., The Things Network), you can select a network and register the LT-22222-L I/O controller with it.
42 +* If there is no public LoRaWAN coverage in your area, you can set up a LoRaWAN gateway, or multiple gateways, and connect them to a LoRaWAN network server to create adequate coverage. Then, register the LT-22222-L I/O controller with this network.
43 +* Setup your own private LoRaWAN network.
44 +
45 +> You can use the Dragino LG308 gateway to expand or create LoRaWAN coverage in your area.
52 52  )))
53 53  
54 54  (((
... ... @@ -59,153 +59,62 @@
59 59  
60 60  == 1.2 Specifications ==
61 61  
62 -(((
63 -
64 -
65 65  (% style="color:#037691" %)**Hardware System:**
66 -)))
67 67  
68 -* (((
69 -STM32L072xxxx MCU
70 -)))
71 -* (((
72 -SX1276/78 Wireless Chip 
73 -)))
74 -* (((
75 -(((
76 -Power Consumption:
77 -)))
58 +* STM32L072xxxx MCU
59 +* SX1276/78 Wireless Chip 
60 +* Power Consumption:
61 +** Idle: 4mA@12v
62 +** 20dB Transmit: 34mA@12v
63 +* Operating Temperature: -40 ~~ 85 Degree, No Dew
78 78  
79 -* (((
80 -Idle: 4mA@12v
81 -)))
82 -* (((
83 -20dB Transmit: 34mA@12v
84 -)))
85 -)))
86 -
87 -(((
88 -
89 -
90 90  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
91 -)))
92 92  
93 -* (((
94 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
95 -)))
96 -* (((
97 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
98 -)))
99 -* (((
100 -2 x Relay Output (5A@250VAC / 30VDC)
101 -)))
102 -* (((
103 -2 x 0~~20mA Analog Input (res:0.01mA)
104 -)))
105 -* (((
106 -2 x 0~~30V Analog Input (res:0.01v)
107 -)))
108 -* (((
109 -Power Input 7~~ 24V DC. 
110 -)))
67 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
68 +* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
69 +* 2 x Relay Output (5A@250VAC / 30VDC)
70 +* 2 x 0~~20mA Analog Input (res:0.01mA)
71 +* 2 x 0~~30V Analog Input (res:0.01v)
72 +* Power Input 7~~ 24V DC. 
111 111  
112 -(((
113 -
114 -
115 115  (% style="color:#037691" %)**LoRa Spec:**
116 -)))
117 117  
118 -* (((
119 -(((
120 -Frequency Range:
121 -)))
76 +* Frequency Range:
77 +** Band 1 (HF): 862 ~~ 1020 Mhz
78 +** Band 2 (LF): 410 ~~ 528 Mhz
79 +* 168 dB maximum link budget.
80 +* +20 dBm - 100 mW constant RF output vs.
81 +* +14 dBm high efficiency PA.
82 +* Programmable bit rate up to 300 kbps.
83 +* High sensitivity: down to -148 dBm.
84 +* Bullet-proof front end: IIP3 = -12.5 dBm.
85 +* Excellent blocking immunity.
86 +* Low RX current of 10.3 mA, 200 nA register retention.
87 +* Fully integrated synthesizer with a resolution of 61 Hz.
88 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
89 +* Built-in bit synchronizer for clock recovery.
90 +* Preamble detection.
91 +* 127 dB Dynamic Range RSSI.
92 +* Automatic RF Sense and CAD with ultra-fast AFC.
93 +* Packet engine up to 256 bytes with CRC.
122 122  
123 -* (((
124 -Band 1 (HF): 862 ~~ 1020 Mhz
125 -)))
126 -* (((
127 -Band 2 (LF): 410 ~~ 528 Mhz
128 -)))
129 -)))
130 -* (((
131 -168 dB maximum link budget.
132 -)))
133 -* (((
134 -+20 dBm - 100 mW constant RF output vs.
135 -)))
136 -* (((
137 -+14 dBm high efficiency PA.
138 -)))
139 -* (((
140 -Programmable bit rate up to 300 kbps.
141 -)))
142 -* (((
143 -High sensitivity: down to -148 dBm.
144 -)))
145 -* (((
146 -Bullet-proof front end: IIP3 = -12.5 dBm.
147 -)))
148 -* (((
149 -Excellent blocking immunity.
150 -)))
151 -* (((
152 -Low RX current of 10.3 mA, 200 nA register retention.
153 -)))
154 -* (((
155 -Fully integrated synthesizer with a resolution of 61 Hz.
156 -)))
157 -* (((
158 -FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
159 -)))
160 -* (((
161 -Built-in bit synchronizer for clock recovery.
162 -)))
163 -* (((
164 -Preamble detection.
165 -)))
166 -* (((
167 -127 dB Dynamic Range RSSI.
168 -)))
169 -* (((
170 -Automatic RF Sense and CAD with ultra-fast AFC.
171 -)))
172 -* (((
173 -Packet engine up to 256 bytes with CRC.
174 -
175 -
176 -
177 -)))
178 -
179 179  == 1.3 Features ==
180 180  
181 -
182 182  * LoRaWAN Class A & Class C protocol
183 -
184 184  * Optional Customized LoRa Protocol
185 -
186 186  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
187 -
188 188  * AT Commands to change parameters
189 -
190 190  * Remote configure parameters via LoRa Downlink
191 -
192 192  * Firmware upgradable via program port
193 -
194 194  * Counting
195 195  
196 196  == 1.4 Applications ==
197 197  
198 -
199 199  * Smart Buildings & Home Automation
200 -
201 201  * Logistics and Supply Chain Management
202 -
203 203  * Smart Metering
204 -
205 205  * Smart Agriculture
206 -
207 207  * Smart Cities
208 -
209 209  * Smart Factory
210 210  
211 211  == 1.5 Hardware Variants ==
... ... @@ -225,41 +225,75 @@
225 225  * 1 x Counting Port
226 226  )))
227 227  
228 -= 2. Power ON Device =
131 += 2. Assembling the Device =
229 229  
133 +== 2.1 What is included in the package? ==
230 230  
231 -(((
232 -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.
233 -)))
135 +The package includes the following items:
234 234  
235 -(((
236 -PWR will on when device is properly powered.
137 +* 1 x LT-22222-L I/O Controller
138 +* 1 x LoRaWAN antenna matched to the frequency of the LT-22222-L
139 +* 1 x bracket for wall mounting
140 +* 1 x programming cable
237 237  
238 -
239 -)))
142 +Attach the LoRaWAN antenna to the connector labeled **ANT** (located on the top right side of the device, next to the upper terminal block). Secure the antenna by tightening it clockwise.
240 240  
144 +== 2.2 Terminals ==
145 +
146 +Upper screw terminal block (from left to right):
147 +
148 +(% style="width:634px" %)
149 +|=(% style="width: 295px;" %)Terminal|=(% style="width: 338px;" %)Function
150 +|(% style="width:295px" %)GND|(% style="width:338px" %)Ground
151 +|(% style="width:295px" %)VIN|(% style="width:338px" %)Input Voltage
152 +|(% style="width:295px" %)AVI2|(% style="width:338px" %)Analog Voltage Input Terminal 2
153 +|(% style="width:295px" %)AVI1|(% style="width:338px" %)Analog Voltage Input Terminal 1
154 +|(% style="width:295px" %)ACI2|(% style="width:338px" %)Analog Current Input Terminal 2
155 +|(% style="width:295px" %)ACI1|(% style="width:338px" %)Analog Current Input Terminal 1
156 +
157 +Lower screw terminal block (from left to right):
158 +
159 +(% style="width:633px" %)
160 +|=(% style="width: 296px;" %)Terminal|=(% style="width: 334px;" %)Function
161 +|(% style="width:296px" %)RO1-2|(% style="width:334px" %)
162 +|(% style="width:296px" %)RO1-1|(% style="width:334px" %)
163 +|(% style="width:296px" %)RO2-2|(% style="width:334px" %)
164 +|(% style="width:296px" %)RO2-1|(% style="width:334px" %)
165 +|(% style="width:296px" %)DI2+|(% style="width:334px" %)
166 +|(% style="width:296px" %)DI2-|(% style="width:334px" %)
167 +|(% style="width:296px" %)DI1+|(% style="width:334px" %)
168 +|(% style="width:296px" %)DI1-|(% style="width:334px" %)
169 +|(% style="width:296px" %)DO2|(% style="width:334px" %)
170 +|(% style="width:296px" %)DO1|(% style="width:334px" %)
171 +
172 +== 2.3 Powering ==
173 +
174 +(% style="line-height:1.38" %)
175 +(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)The LT-22222-L I/O Controller can be powered by a 7–24V DC power source.(%%) Connect the power supply’s positive wire to the VIN screw terminal and the negative wire to the GND screw terminal. (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)The power indicator (PWR) LED will turn on when the device is properly powered.
176 +
177 +
241 241  [[image:1653297104069-180.png]]
242 242  
243 243  
244 244  = 3. Operation Mode =
245 245  
246 -== 3.1 How it works? ==
183 +== 3.1 How does it work? ==
247 247  
248 -
249 249  (((
250 -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 (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**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. 
186 +The LT-22222-L is configured to operate in LoRaWAN Class C mode by default. It supports OTAA (Over-the-Air Activation), which is the most secure method for activating a device with a LoRaWAN network server. The LT-22222-L comes with device registration information that allows you to register it with a LoRaWAN network, enabling the device to perform OTAA activation with the network server upon initial power-up and after any subsequent reboots.
187 +
188 +For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**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. 
251 251  )))
252 252  
253 253  (((
254 -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>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
192 +In case you can't set the root key and other identifiers in the network server and must use them from the server, you can use [[AT Commands>>||anchor="H4.UseATCommand"]] to configure them on the device.
255 255  )))
256 256  
257 257  
258 -== 3.2 Example to join LoRaWAN network ==
196 +== 3.2 Joining the LoRaWAN network server ==
259 259  
260 -
261 261  (((
262 -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. 
199 +The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
263 263  
264 264  
265 265  )))
... ... @@ -1163,14 +1163,14 @@
1163 1163  
1164 1164  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1165 1165  |(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1166 -|03  00  11|Close|No Action
1167 -|03  01  11|Open|No Action
1168 -|03  11  00|No Action|Close
1169 -|03  11  01|No Action|Open
1170 -|03  00  00|Close|Close
1171 -|03  01  01|Open|Open
1172 -|03  01  00|Open|Close
1173 -|03  00  01|Close|Open
1103 +|03  00  11|Open|No Action
1104 +|03  01  11|Close|No Action
1105 +|03  11  00|No Action|Open
1106 +|03  11  01|No Action|Close
1107 +|03  00  00|Open|Open
1108 +|03  01  01|Close|Close
1109 +|03  01  00|Close|Open
1110 +|03  00  01|Open|Close
1174 1174  )))
1175 1175  
1176 1176  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
... ... @@ -1664,12 +1664,9 @@
1664 1664  == 3.7 LEDs Indicators ==
1665 1665  
1666 1666  
1667 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1668 -|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:470px" %)**Feature**
1604 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1605 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1669 1669  |**PWR**|Always on if there is power
1670 -|**SYS**|(((
1671 -After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
1672 -)))
1673 1673  |**TX**|(((
1674 1674  (((
1675 1675  Device boot: TX blinks 5 times.
... ... @@ -1684,20 +1684,16 @@
1684 1684  )))
1685 1685  )))
1686 1686  |**RX**|RX blinks once when receive a packet.
1687 -|**DO1**|
1688 -|**DO2**|
1689 -|**DO3**|
1690 -|**DI2**|(((
1691 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1621 +|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
1622 +|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
1623 +|**DI1**|(((
1624 +For LT-22222-L: ON when DI1 is high, LOW when DI1 is low
1692 1692  )))
1693 1693  |**DI2**|(((
1694 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1627 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1695 1695  )))
1696 -|**DI2**|(((
1697 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1698 -)))
1699 -|**RO1**|
1700 -|**RO2**|
1629 +|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
1630 +|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
1701 1701  
1702 1702  = 4. Use AT Command =
1703 1703  
... ... @@ -1708,10 +1708,6 @@
1708 1708  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1709 1709  )))
1710 1710  
1711 -(((
1712 -
1713 -)))
1714 -
1715 1715  [[image:1653358238933-385.png]]
1716 1716  
1717 1717  

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0