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16 16  == 1.1 What is LT Series I/O Controller ==
17 17  
18 18  (((
19 -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.
19 +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.
20 20  )))
21 21  
22 22  (((
... ... @@ -24,7 +24,7 @@
24 24  )))
25 25  
26 26  (((
27 -The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
27 +The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
28 28  )))
29 29  
30 30  (((
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167 167  * Firmware upgradable via program port
168 168  * Counting
169 169  
170 +
171 +
170 170  == 1.4  Applications ==
171 171  
172 172  * Smart Buildings & Home Automation
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176 176  * Smart Cities
177 177  * Smart Factory
178 178  
181 +
182 +
179 179  == 1.5 Hardware Variants ==
180 180  
181 181  (% border="1" style="background-color:#f7faff; width:500px" %)
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189 189  * 1 x Counting Port
190 190  )))
191 191  
196 +
197 +
192 192  = 2. Power ON Device =
193 193  
194 194  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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266 266  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
267 267  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
268 268  
275 +
276 +
269 269  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
270 270  
271 271  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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316 316  ** DO1 is high in case there is load between DO1 and V+.
317 317  ** DO1 LED is off in both case
318 318  
327 +
328 +
319 319  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
320 320  
321 321  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
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604 604  
605 605  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
606 606  
617 +
607 607  (% style="color:#4f81bd" %)**Trigger base on current**:
608 608  
609 609  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
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612 612  
613 613  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
614 614  
626 +
615 615  (% style="color:#4f81bd" %)**Trigger base on DI status**:
616 616  
617 617  DI status trigger Flag.
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715 715  There are two kinds of Commands:
716 716  )))
717 717  
718 -* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
730 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, 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]]
719 719  
720 720  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
721 721  
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1278 1278  [[image:1653357170703-587.png]]
1279 1279  
1280 1280  (((
1293 +(((
1281 1281  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1282 1282  )))
1296 +)))
1283 1283  
1298 +(((
1299 +
1300 +)))
1284 1284  
1302 +(((
1285 1285  **Example1**: Connect to a Low active sensor.
1304 +)))
1286 1286  
1306 +(((
1287 1287  This type of sensor will output a low signal GND when active.
1308 +)))
1288 1288  
1289 -* Connect sensor’s output to DI1-
1290 -* Connect sensor’s VCC to DI1+.
1310 +* (((
1311 +Connect sensor’s output to DI1-
1312 +)))
1313 +* (((
1314 +Connect sensor’s VCC to DI1+.
1315 +)))
1291 1291  
1292 -So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1317 +(((
1318 +So when sensor active, the current between NEC2501 pin1 and pin2 is：
1319 +)))
1293 1293  
1294 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]] = DI1+ / 1K.**
1321 +(((
1322 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1323 +)))
1295 1295  
1296 -If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1325 +(((
1326 +If DI1+ = 12v, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1327 +)))
1297 1297  
1329 +(((
1330 +
1331 +)))
1298 1298  
1333 +(((
1299 1299  **Example2**: Connect to a High active sensor.
1335 +)))
1300 1300  
1337 +(((
1301 1301  This type of sensor will output a high signal (example 24v) when active.
1339 +)))
1302 1302  
1303 -* Connect sensor’s output to DI1+
1304 -* Connect sensor’s GND DI1-.
1341 +* (((
1342 +Connect sensor’s output to DI1+
1343 +)))
1344 +* (((
1345 +Connect sensor’s GND DI1-.
1346 +)))
1305 1305  
1348 +(((
1306 1306  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1350 +)))
1307 1307  
1308 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1352 +(((
1353 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1354 +)))
1309 1309  
1310 -If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1356 +(((
1357 +If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
1358 +)))
1311 1311  
1360 +(((
1361 +
1362 +)))
1312 1312  
1364 +(((
1313 1313  **Example3**: Connect to a 220v high active sensor.
1366 +)))
1314 1314  
1368 +(((
1315 1315  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1370 +)))
1316 1316  
1317 -* Connect sensor’s output to DI1+ with a serial 50K resistor
1318 -* Connect sensor’s GND DI1-.
1372 +* (((
1373 +Connect sensor’s output to DI1+ with a serial 50K resistor
1374 +)))
1375 +* (((
1376 +Connect sensor’s GND DI1-.
1377 +)))
1319 1319  
1379 +(((
1320 1320  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1381 +)))
1321 1321  
1322 - [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1383 +(((
1384 + [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1385 +)))
1323 1323  
1324 -If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1387 +(((
1388 +If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1389 +)))
1325 1325  
1326 1326  
1327 1327  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
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