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16 16  == 1.1 What is LT Series I/O Controller ==
17 17  
18 18  (((
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.
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.
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 an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
27 +The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN 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 -
172 172  == 1.4  Applications ==
173 173  
174 174  * Smart Buildings & Home Automation
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1280 1280  [[image:1653357170703-587.png]]
1281 1281  
1282 1282  (((
1283 -(((
1284 1284  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1285 1285  )))
1286 -)))
1287 1287  
1288 -(((
1289 -
1290 -)))
1291 1291  
1292 -(((
1293 1293  **Example1**: Connect to a Low active sensor.
1294 -)))
1295 1295  
1296 -(((
1297 1297  This type of sensor will output a low signal GND when active.
1298 -)))
1299 1299  
1300 -* (((
1301 -Connect sensor’s output to DI1-
1302 -)))
1303 -* (((
1304 -Connect sensor’s VCC to DI1+.
1305 -)))
1289 +* Connect sensor’s output to DI1-
1290 +* Connect sensor’s VCC to DI1+.
1306 1306  
1307 -(((
1308 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1309 -)))
1292 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1310 1310  
1311 -(((
1312 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1313 -)))
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.**
1314 1314  
1315 -(((
1316 -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.
1317 -)))
1296 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1318 1318  
1319 -(((
1320 -
1321 -)))
1322 1322  
1323 -(((
1324 1324  **Example2**: Connect to a High active sensor.
1325 -)))
1326 1326  
1327 -(((
1328 1328  This type of sensor will output a high signal (example 24v) when active.
1329 -)))
1330 1330  
1331 -* (((
1332 -Connect sensor’s output to DI1+
1333 -)))
1334 -* (((
1335 -Connect sensor’s GND DI1-.
1336 -)))
1303 +* Connect sensor’s output to DI1+
1304 +* Connect sensor’s GND DI1-.
1337 1337  
1338 -(((
1339 1339  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1340 -)))
1341 1341  
1342 -(((
1343 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1344 -)))
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.**
1345 1345  
1346 -(((
1347 -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.
1348 -)))
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.
1349 1349  
1350 -(((
1351 -
1352 -)))
1353 1353  
1354 -(((
1355 1355  **Example3**: Connect to a 220v high active sensor.
1356 -)))
1357 1357  
1358 -(((
1359 1359  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1360 -)))
1361 1361  
1362 -* (((
1363 -Connect sensor’s output to DI1+ with a serial 50K resistor
1364 -)))
1365 -* (((
1366 -Connect sensor’s GND DI1-.
1367 -)))
1317 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1318 +* Connect sensor’s GND DI1-.
1368 1368  
1369 -(((
1370 1370  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1371 -)))
1372 1372  
1373 -(((
1374 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1375 -)))
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:image-20220524095628-8.png]] = DI1+ / 51K.**
1376 1376  
1377 -(((
1378 -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.
1379 -)))
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.
1380 1380  
1381 1381  
1382 1382  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
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