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From version < 75.13 >
edited by Xiaoling
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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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178 178  * Smart Cities
179 179  * Smart Factory
180 180  
181 -
182 -
183 183  == 1.5 Hardware Variants ==
184 184  
185 185  (% border="1" style="background-color:#f7faff; width:500px" %)
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193 193  * 1 x Counting Port
194 194  )))
195 195  
196 -
197 -
198 198  = 2. Power ON Device =
199 199  
200 200  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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272 272  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
273 273  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
274 274  
275 -
276 -
277 277  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
278 278  
279 279  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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324 324  ** DO1 is high in case there is load between DO1 and V+.
325 325  ** DO1 LED is off in both case
326 326  
327 -
328 -
329 329  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
330 330  
331 331  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
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614 614  
615 615  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
616 616  
617 -
618 618  (% style="color:#4f81bd" %)**Trigger base on current**:
619 619  
620 620  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
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623 623  
624 624  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
625 625  
626 -
627 627  (% style="color:#4f81bd" %)**Trigger base on DI status**:
628 628  
629 629  DI status trigger Flag.
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727 727  There are two kinds of Commands:
728 728  )))
729 729  
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]]
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
731 731  
732 732  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
733 733  
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1290 1290  [[image:1653357170703-587.png]]
1291 1291  
1292 1292  (((
1293 -(((
1294 1294  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1295 1295  )))
1296 -)))
1297 1297  
1298 -(((
1299 -
1300 -)))
1301 1301  
1302 -(((
1303 1303  **Example1**: Connect to a Low active sensor.
1304 -)))
1305 1305  
1306 -(((
1307 1307  This type of sensor will output a low signal GND when active.
1308 -)))
1309 1309  
1310 -* (((
1311 -Connect sensor’s output to DI1-
1312 -)))
1313 -* (((
1314 -Connect sensor’s VCC to DI1+.
1315 -)))
1289 +* Connect sensor’s output to DI1-
1290 +* Connect sensor’s VCC to DI1+.
1316 1316  
1317 -(((
1318 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1319 -)))
1292 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1320 1320  
1321 -(((
1322 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1323 -)))
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.**
1324 1324  
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 -)))
1296 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1328 1328  
1329 -(((
1330 -
1331 -)))
1332 1332  
1333 -(((
1334 1334  **Example2**: Connect to a High active sensor.
1335 -)))
1336 1336  
1337 -(((
1338 1338  This type of sensor will output a high signal (example 24v) when active.
1339 -)))
1340 1340  
1341 -* (((
1342 -Connect sensor’s output to DI1+
1343 -)))
1344 -* (((
1345 -Connect sensor’s GND DI1-.
1346 -)))
1303 +* Connect sensor’s output to DI1+
1304 +* Connect sensor’s GND DI1-.
1347 1347  
1348 -(((
1349 1349  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1350 -)))
1351 1351  
1352 -(((
1353 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1354 -)))
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.**
1355 1355  
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 -)))
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.
1359 1359  
1360 -(((
1361 -
1362 -)))
1363 1363  
1364 -(((
1365 1365  **Example3**: Connect to a 220v high active sensor.
1366 -)))
1367 1367  
1368 -(((
1369 1369  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1370 -)))
1371 1371  
1372 -* (((
1373 -Connect sensor’s output to DI1+ with a serial 50K resistor
1374 -)))
1375 -* (((
1376 -Connect sensor’s GND DI1-.
1377 -)))
1317 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1318 +* Connect sensor’s GND DI1-.
1378 1378  
1379 -(((
1380 1380  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1381 -)))
1382 1382  
1383 -(((
1384 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1385 -)))
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.**
1386 1386  
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 -)))
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.
1390 1390  
1391 1391  
1392 1392  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
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