Last modified by Mengting Qiu on 2025/06/04 18:42

From version 77.24
edited by Xiaoling
on 2022/06/10 08:41
Change comment: There is no comment for this version
To version 68.16
edited by Xiaoling
on 2022/05/25 15:20
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -11,15 +11,12 @@
11 11  
12 12  
13 13  
14 -
15 -
16 -
17 17  = 1.Introduction =
18 18  
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
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.
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.
23 23  )))
24 24  
25 25  (((
... ... @@ -27,7 +27,7 @@
27 27  )))
28 28  
29 29  (((
30 -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.
31 31  )))
32 32  
33 33  (((
... ... @@ -44,15 +44,11 @@
44 44  
45 45  (((
46 46  [[image:1653295757274-912.png]]
47 -
48 -
49 49  )))
50 50  
51 51  == 1.2  Specifications ==
52 52  
53 53  (((
54 -
55 -
56 56  **Hardware System:**
57 57  )))
58 58  
... ... @@ -75,7 +75,6 @@
75 75  )))
76 76  )))
77 77  
78 -
79 79  (((
80 80  **Interface for Model: LT22222-L:**
81 81  )))
... ... @@ -99,7 +99,6 @@
99 99  Power Input 7~~ 24V DC. 
100 100  )))
101 101  
102 -
103 103  (((
104 104  **LoRa Spec:**
105 105  )))
... ... @@ -160,12 +160,8 @@
160 160  )))
161 161  * (((
162 162  Packet engine up to 256 bytes with CRC.
163 -
164 -
165 165  )))
166 166  
167 -
168 -
169 169  == 1.3 Features ==
170 170  
171 171  * LoRaWAN Class A & Class C protocol
... ... @@ -176,8 +176,6 @@
176 176  * Firmware upgradable via program port
177 177  * Counting
178 178  
179 -
180 -
181 181  == 1.4  Applications ==
182 182  
183 183  * Smart Buildings & Home Automation
... ... @@ -187,8 +187,6 @@
187 187  * Smart Cities
188 188  * Smart Factory
189 189  
190 -
191 -
192 192  == 1.5 Hardware Variants ==
193 193  
194 194  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -202,8 +202,6 @@
202 202  * 1 x Counting Port
203 203  )))
204 204  
205 -
206 -
207 207  = 2. Power ON Device =
208 208  
209 209  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.
... ... @@ -214,8 +214,6 @@
214 214  
215 215  [[image:1653297104069-180.png]]
216 216  
217 -
218 -
219 219  = 3. Operation Mode =
220 220  
221 221  == 3.1 How it works? ==
... ... @@ -226,12 +226,8 @@
226 226  
227 227  (((
228 228  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.
229 -
230 -
231 231  )))
232 232  
233 -
234 -
235 235  == 3.2 Example to join LoRaWAN network ==
236 236  
237 237  (((
... ... @@ -260,12 +260,10 @@
260 260  
261 261  [[image:1653297955910-247.png||height="321" width="716"]]
262 262  
263 -
264 264  Add APP KEY and DEV EUI
265 265  
266 266  [[image:1653298023685-319.png]]
267 267  
268 -
269 269  (((
270 270  **Step 2**: Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
271 271  )))
... ... @@ -272,8 +272,6 @@
272 272  
273 273  [[image:1653298044601-602.png||height="405" width="709"]]
274 274  
275 -
276 -
277 277  == 3.3 Uplink Payload ==
278 278  
279 279  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -285,8 +285,6 @@
285 285  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
286 286  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
287 287  
288 -
289 -
290 290  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
291 291  
292 292  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -322,7 +322,6 @@
322 322  * [1] RO1 relay channel is close and the RO1 LED is ON.
323 323  * [0] RO2 relay channel is open and RO2 LED is OFF;
324 324  
325 -
326 326  **LT22222-L:**
327 327  
328 328  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -338,8 +338,6 @@
338 338  ** DO1 is high in case there is load between DO1 and V+.
339 339  ** DO1 LED is off in both case
340 340  
341 -
342 -
343 343  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
344 344  
345 345  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -432,8 +432,6 @@
432 432  )))
433 433  )))
434 434  
435 -
436 -
437 437  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
438 438  
439 439  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -474,12 +474,8 @@
474 474  
475 475  (((
476 476  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
477 -
478 -
479 479  )))
480 480  
481 -
482 -
483 483  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
484 484  
485 485  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -560,8 +560,6 @@
560 560  )))
561 561  )))
562 562  
563 -
564 -
565 565  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
566 566  
567 567  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -602,12 +602,8 @@
602 602  
603 603  (((
604 604  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
605 -
606 -
607 607  )))
608 608  
609 -
610 -
611 611  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
612 612  
613 613  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
... ... @@ -634,7 +634,6 @@
634 634  
635 635  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
636 636  
637 -
638 638  (% style="color:#4f81bd" %)**Trigger base on current**:
639 639  
640 640  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -643,7 +643,6 @@
643 643  
644 644  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
645 645  
646 -
647 647  (% style="color:#4f81bd" %)**Trigger base on DI status**:
648 648  
649 649  DI status trigger Flag.
... ... @@ -730,18 +730,12 @@
730 730  
731 731  When device got this command, it will send the MOD6 payload.
732 732  
733 -
734 -
735 735  === 3.3.7 Payload Decoder ===
736 736  
737 737  (((
738 738  **Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
739 -
740 -
741 741  )))
742 742  
743 -
744 -
745 745  == 3.4 ​Configure LT via AT or Downlink ==
746 746  
747 747  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -750,18 +750,14 @@
750 750  There are two kinds of Commands:
751 751  )))
752 752  
753 -* (% 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]]
699 +* (% 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
754 754  
755 755  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
756 756  
757 -
758 -
759 759  === 3.4.1 Common Commands ===
760 760  
761 761  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]]
762 762  
763 -
764 -
765 765  === 3.4.2 Sensor related commands ===
766 766  
767 767  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -784,8 +784,6 @@
784 784  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
785 785  )))
786 786  
787 -
788 -
789 789  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
790 790  
791 791  Set work mode.
... ... @@ -806,8 +806,6 @@
806 806  **0x0A aa     ~/~/ Same as AT+MOD=aa**
807 807  )))
808 808  
809 -
810 -
811 811  ==== 3.4.2.3 Poll an uplink ====
812 812  
813 813  * AT Command:
... ... @@ -823,11 +823,9 @@
823 823  
824 824  **Example**: 0x08FF, ask device to send an Uplink
825 825  
826 -
827 -
828 828  ==== 3.4.2.4 Enable Trigger Mode ====
829 829  
830 -Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
766 +Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
831 831  
832 832  * AT Command:
833 833  
... ... @@ -847,8 +847,6 @@
847 847  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
848 848  )))
849 849  
850 -
851 -
852 852  ==== 3.4.2.5 Poll trigger settings ====
853 853  
854 854  Poll trigger settings,
... ... @@ -864,8 +864,6 @@
864 864  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
865 865  )))
866 866  
867 -
868 -
869 869  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
870 870  
871 871  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -888,8 +888,6 @@
888 888  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
889 889  )))
890 890  
891 -
892 -
893 893  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
894 894  
895 895  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -916,7 +916,6 @@
916 916  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
917 917  )))
918 918  
919 -
920 920  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
921 921  
922 922  Set DI2 trigger.
... ... @@ -943,10 +943,9 @@
943 943  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
944 944  )))
945 945  
946 -
947 947  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
948 948  
949 -Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
877 +Set current trigger , base on AC port. See [[trigger mode>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
950 950  
951 951  * AT Command:
952 952  
... ... @@ -959,19 +959,18 @@
959 959  
960 960  (% class="box infomessage" %)
961 961  (((
962 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
890 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
963 963  )))
964 964  
965 -
966 966  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
967 967  
968 -Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
895 +Set current trigger , base on AV port. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
969 969  
970 970  * AT Command:
971 971  
972 972  (% class="box infomessage" %)
973 973  (((
974 -**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
901 +**AT+AVLIM. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
975 975  )))
976 976  
977 977  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -978,10 +978,9 @@
978 978  
979 979  (% class="box infomessage" %)
980 980  (((
981 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
908 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] **
982 982  )))
983 983  
984 -
985 985  ==== 3.4.2.11 Trigger – Set minimum interval ====
986 986  
987 987  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -1000,7 +1000,6 @@
1000 1000  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
1001 1001  )))
1002 1002  
1003 -
1004 1004  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1005 1005  
1006 1006  * AT Command:
... ... @@ -1175,13 +1175,13 @@
1175 1175  
1176 1176  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1177 1177  
1178 -When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1103 +When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
1179 1179  
1180 1180  * AT Command:
1181 1181  
1182 1182  (% class="box infomessage" %)
1183 1183  (((
1184 -**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1109 +**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
1185 1185  )))
1186 1186  
1187 1187  * Downlink Payload (prefix 0xA5):
... ... @@ -1191,7 +1191,6 @@
1191 1191  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1192 1192  )))
1193 1193  
1194 -
1195 1195  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1196 1196  
1197 1197  * AT Command:
... ... @@ -1216,7 +1216,6 @@
1216 1216  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1217 1217  )))
1218 1218  
1219 -
1220 1220  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1221 1221  
1222 1222  Clear counting for counting mode
... ... @@ -1235,7 +1235,6 @@
1235 1235  **0x A6 01     ~/~/ clear all counting,**
1236 1236  )))
1237 1237  
1238 -
1239 1239  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1240 1240  
1241 1241  * AT Command:
... ... @@ -1254,8 +1254,6 @@
1254 1254  
1255 1255  (((
1256 1256  range: aa bb cc:0 to 16777215,  (unit:second)
1257 -
1258 -
1259 1259  )))
1260 1260  
1261 1261  == 3.5 Integrate with Mydevice ==
... ... @@ -1276,7 +1276,6 @@
1276 1276  
1277 1277  [[image:image-20220524094641-12.png||height="402" width="718"]]
1278 1278  
1279 -
1280 1280  **Step 3**: Create an account or log in Mydevices.
1281 1281  
1282 1282  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1285,7 +1285,6 @@
1285 1285  
1286 1286  [[image:1653356838789-523.png||height="337" width="740"]]
1287 1287  
1288 -
1289 1289  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1290 1290  
1291 1291  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1298,7 +1298,6 @@
1298 1298  
1299 1299  [[image:image-20220524094909-5.png||height="341" width="734"]]
1300 1300  
1301 -
1302 1302  == 3.6 Interface Detail ==
1303 1303  
1304 1304  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1307,7 +1307,6 @@
1307 1307  
1308 1308  [[image:1653356991268-289.png]]
1309 1309  
1310 -
1311 1311  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1312 1312  
1313 1313  (((
... ... @@ -1323,105 +1323,51 @@
1323 1323  [[image:1653357170703-587.png]]
1324 1324  
1325 1325  (((
1326 -(((
1327 1327  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1328 1328  )))
1329 -)))
1330 1330  
1331 -(((
1332 -
1333 -)))
1334 1334  
1335 -(((
1336 1336  **Example1**: Connect to a Low active sensor.
1337 -)))
1338 1338  
1339 -(((
1340 1340  This type of sensor will output a low signal GND when active.
1341 -)))
1342 1342  
1343 -* (((
1344 -Connect sensor’s output to DI1-
1345 -)))
1346 -* (((
1347 -Connect sensor’s VCC to DI1+.
1348 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1349 1349  
1350 -(((
1351 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1352 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is: ​​
1353 1353  
1354 -(((
1355 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1356 -)))
1255 +[[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.**
1357 1357  
1358 -(((
1359 -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.
1360 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1361 1361  
1362 -(((
1363 -
1364 -)))
1365 1365  
1366 -(((
1367 1367  **Example2**: Connect to a High active sensor.
1368 -)))
1369 1369  
1370 -(((
1371 1371  This type of sensor will output a high signal (example 24v) when active.
1372 -)))
1373 1373  
1374 -* (((
1375 -Connect sensor’s output to DI1+
1376 -)))
1377 -* (((
1378 -Connect sensor’s GND DI1-.
1379 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1380 1380  
1381 -(((
1382 1382  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1383 -)))
1384 1384  
1385 -(((
1386 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1387 -)))
1269 +[[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.**
1388 1388  
1389 -(((
1390 -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.
1391 -)))
1271 +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.
1392 1392  
1393 -(((
1394 -
1395 -)))
1396 1396  
1397 -(((
1398 1398  **Example3**: Connect to a 220v high active sensor.
1399 -)))
1400 1400  
1401 -(((
1402 1402  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1403 -)))
1404 1404  
1405 -* (((
1406 -Connect sensor’s output to DI1+ with a serial 50K resistor
1407 -)))
1408 -* (((
1409 -Connect sensor’s GND DI1-.
1410 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1411 1411  
1412 -(((
1413 1413  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1414 -)))
1415 1415  
1416 -(((
1417 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1418 -)))
1283 + [[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.**
1419 1419  
1420 -(((
1421 -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.
1422 -)))
1285 +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.
1423 1423  
1424 -
1425 1425  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1426 1426  
1427 1427  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1428,7 +1428,6 @@
1428 1428  
1429 1429  [[image:1653357531600-905.png]]
1430 1430  
1431 -
1432 1432  === 3.6.4 Analog Input Interface ===
1433 1433  
1434 1434  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
... ... @@ -1456,7 +1456,6 @@
1456 1456  
1457 1457  [[image:1653357648330-671.png||height="155" width="733"]]
1458 1458  
1459 -
1460 1460  === 3.6.5 Relay Output ===
1461 1461  
1462 1462  (((
... ... @@ -1467,12 +1467,10 @@
1467 1467  
1468 1468  [[image:image-20220524100215-10.png||height="382" width="723"]]
1469 1469  
1470 -
1471 1471  == 3.7 LEDs Indicators ==
1472 1472  
1473 1473  [[image:image-20220524100748-11.png]]
1474 1474  
1475 -
1476 1476  = 4. Use AT Command =
1477 1477  
1478 1478  == 4.1 Access AT Command ==
... ... @@ -1673,8 +1673,6 @@
1673 1673  
1674 1674  (((
1675 1675  AT+CFG: Print all settings
1676 -
1677 -
1678 1678  )))
1679 1679  
1680 1680  == 4.2 Common AT Command Sequence ==
... ... @@ -1716,8 +1716,6 @@
1716 1716  
1717 1717  (((
1718 1718  (% style="background-color:#dcdcdc" %)ATZ
1719 -
1720 -
1721 1721  )))
1722 1722  
1723 1723  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1799,7 +1799,6 @@
1799 1799  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1800 1800  ATZ
1801 1801  
1802 -
1803 1803  = 5. FAQ =
1804 1804  
1805 1805  == 5.1 How to upgrade the image? ==
... ... @@ -1830,7 +1830,6 @@
1830 1830  
1831 1831  [[image:1653360054704-518.png||height="186" width="745"]]
1832 1832  
1833 -
1834 1834  (((
1835 1835  (((
1836 1836  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1839,8 +1839,6 @@
1839 1839  
1840 1840  (((
1841 1841  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1842 -
1843 -
1844 1844  )))
1845 1845  
1846 1846  (((
... ... @@ -1894,18 +1894,10 @@
1894 1894  
1895 1895  [[image:1653360498588-932.png||height="485" width="726"]]
1896 1896  
1897 -
1898 1898  == 5.4 Can I see counting event in Serial? ==
1899 1899  
1900 1900  (((
1901 1901  User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
1902 -
1903 -
1904 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1905 -
1906 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1907 -
1908 -
1909 1909  )))
1910 1910  
1911 1911  (((
... ... @@ -1919,8 +1919,10 @@
1919 1919  )))
1920 1920  
1921 1921  (((
1922 -Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1764 +Please see this link for how to debug:
1923 1923  
1766 +[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork]]
1767 +
1924 1924  
1925 1925  )))
1926 1926  
... ... @@ -1929,7 +1929,9 @@
1929 1929  )))
1930 1930  
1931 1931  (((
1932 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1776 +See this link for trouble shooting:
1777 +
1778 +[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/>>http://wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
1933 1933  )))
1934 1934  
1935 1935  (((
... ... @@ -1941,7 +1941,9 @@
1941 1941  )))
1942 1942  
1943 1943  (((
1944 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1790 +It might be about the channels mapping. Please see this link for detail:
1791 +
1792 +[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband]]
1945 1945  )))
1946 1946  
1947 1947  (((
... ... @@ -2015,8 +2015,6 @@
2015 2015  (((
2016 2016  * (((
2017 2017  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2018 -
2019 -
2020 2020  )))
2021 2021  
2022 2022  = 8. Packing Info =
... ... @@ -2049,8 +2049,6 @@
2049 2049  * Device Weight: 105g
2050 2050  * Package Size / pcs : 14.5 x 8 x 5 cm
2051 2051  * Weight / pcs : 170g
2052 -
2053 -
2054 2054  )))
2055 2055  )))
2056 2056  
... ... @@ -2072,8 +2072,6 @@
2072 2072  (((
2073 2073  (((
2074 2074   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2075 -
2076 -
2077 2077  )))
2078 2078  
2079 2079  (((
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