<
From version < 79.5 >
edited by Xiaoling
on 2022/06/10 09:41
To version < 82.4 >
edited by Xiaoling
on 2022/06/20 11:17
>
Change comment: There is no comment for this version

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19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
22 +
23 +
22 22  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.
23 23  )))
24 24  
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48 48  
49 49  )))
50 50  
53 +
51 51  == 1.2  Specifications ==
52 52  
53 53  (((
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162 162  )))
163 163  * (((
164 164  Packet engine up to 256 bytes with CRC.
168 +
169 +
170 +
171 +
165 165  )))
166 166  
167 167  == 1.3 Features ==
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314 314  * [1] RO1 relay channel is close and the RO1 LED is ON.
315 315  * [0] RO2 relay channel is open and RO2 LED is OFF;
316 316  
317 -
318 318  **LT22222-L:**
319 319  
320 320  * [1] DI2 channel is high input and DI2 LED is ON;
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767 767  
768 768  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
769 769  
770 -
771 -
772 772  === 3.4.1 Common Commands ===
773 773  
774 774  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
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2000 2000  )))
2001 2001  
2002 2002  (((
2003 -
2007 +== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2004 2004  
2009 +If the device is not shut down, but directly powered off.
2010 +
2011 +It will default that this is a power-off state.
2012 +
2013 +In modes 2 to 5, DO RO status and pulse count are saved in flash.
2014 +
2015 +After restart, the status before power failure will be read from flash.
2016 +
2005 2005  = 6. Trouble Shooting =
2006 2006  )))
2007 2007  
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