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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 77.22
edited by Xiaoling
on 2022/06/10 08:41
Change comment: There is no comment for this version
To version 68.11
edited by Xiaoling
on 2022/05/25 15:12
Change comment: There is no comment for this version

Summary

Details

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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,
... ... @@ -864,7 +864,6 @@
864 864  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
865 865  )))
866 866  
867 -
868 868  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
869 869  
870 870  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -887,7 +887,6 @@
887 887  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
888 888  )))
889 889  
890 -
891 891  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
892 892  
893 893  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -914,7 +914,6 @@
914 914  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
915 915  )))
916 916  
917 -
918 918  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
919 919  
920 920  Set DI2 trigger.
... ... @@ -941,10 +941,9 @@
941 941  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
942 942  )))
943 943  
944 -
945 945  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
946 946  
947 -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]]
948 948  
949 949  * AT Command:
950 950  
... ... @@ -957,19 +957,18 @@
957 957  
958 958  (% class="box infomessage" %)
959 959  (((
960 -**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]]**
961 961  )))
962 962  
963 -
964 964  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
965 965  
966 -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]]
967 967  
968 968  * AT Command:
969 969  
970 970  (% class="box infomessage" %)
971 971  (((
972 -**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]]**
973 973  )))
974 974  
975 975  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -976,10 +976,9 @@
976 976  
977 977  (% class="box infomessage" %)
978 978  (((
979 -**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]] **
980 980  )))
981 981  
982 -
983 983  ==== 3.4.2.11 Trigger – Set minimum interval ====
984 984  
985 985  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -998,7 +998,6 @@
998 998  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
999 999  )))
1000 1000  
1001 -
1002 1002  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1003 1003  
1004 1004  * AT Command:
... ... @@ -1173,13 +1173,13 @@
1173 1173  
1174 1174  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1175 1175  
1176 -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]]
1177 1177  
1178 1178  * AT Command:
1179 1179  
1180 1180  (% class="box infomessage" %)
1181 1181  (((
1182 -**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]]**
1183 1183  )))
1184 1184  
1185 1185  * Downlink Payload (prefix 0xA5):
... ... @@ -1189,7 +1189,6 @@
1189 1189  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1190 1190  )))
1191 1191  
1192 -
1193 1193  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1194 1194  
1195 1195  * AT Command:
... ... @@ -1214,7 +1214,6 @@
1214 1214  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1215 1215  )))
1216 1216  
1217 -
1218 1218  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1219 1219  
1220 1220  Clear counting for counting mode
... ... @@ -1233,7 +1233,6 @@
1233 1233  **0x A6 01     ~/~/ clear all counting,**
1234 1234  )))
1235 1235  
1236 -
1237 1237  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1238 1238  
1239 1239  * AT Command:
... ... @@ -1252,8 +1252,6 @@
1252 1252  
1253 1253  (((
1254 1254  range: aa bb cc:0 to 16777215,  (unit:second)
1255 -
1256 -
1257 1257  )))
1258 1258  
1259 1259  == 3.5 Integrate with Mydevice ==
... ... @@ -1274,7 +1274,6 @@
1274 1274  
1275 1275  [[image:image-20220524094641-12.png||height="402" width="718"]]
1276 1276  
1277 -
1278 1278  **Step 3**: Create an account or log in Mydevices.
1279 1279  
1280 1280  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1283,7 +1283,6 @@
1283 1283  
1284 1284  [[image:1653356838789-523.png||height="337" width="740"]]
1285 1285  
1286 -
1287 1287  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1288 1288  
1289 1289  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1296,7 +1296,6 @@
1296 1296  
1297 1297  [[image:image-20220524094909-5.png||height="341" width="734"]]
1298 1298  
1299 -
1300 1300  == 3.6 Interface Detail ==
1301 1301  
1302 1302  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1305,7 +1305,6 @@
1305 1305  
1306 1306  [[image:1653356991268-289.png]]
1307 1307  
1308 -
1309 1309  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1310 1310  
1311 1311  (((
... ... @@ -1321,105 +1321,51 @@
1321 1321  [[image:1653357170703-587.png]]
1322 1322  
1323 1323  (((
1324 -(((
1325 1325  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1326 1326  )))
1327 -)))
1328 1328  
1329 -(((
1330 -
1331 -)))
1332 1332  
1333 -(((
1334 1334  **Example1**: Connect to a Low active sensor.
1335 -)))
1336 1336  
1337 -(((
1338 1338  This type of sensor will output a low signal GND when active.
1339 -)))
1340 1340  
1341 -* (((
1342 -Connect sensor’s output to DI1-
1343 -)))
1344 -* (((
1345 -Connect sensor’s VCC to DI1+.
1346 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1347 1347  
1348 -(((
1349 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1350 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1351 1351  
1352 -(((
1353 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1354 -)))
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:/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:/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+ / 1K.**
1355 1355  
1356 -(((
1357 -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.
1358 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1359 1359  
1360 -(((
1361 -
1362 -)))
1363 1363  
1364 -(((
1365 1365  **Example2**: Connect to a High active sensor.
1366 -)))
1367 1367  
1368 -(((
1369 1369  This type of sensor will output a high signal (example 24v) when active.
1370 -)))
1371 1371  
1372 -* (((
1373 -Connect sensor’s output to DI1+
1374 -)))
1375 -* (((
1376 -Connect sensor’s GND DI1-.
1377 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* 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+ / 1K.**
1385 -)))
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:/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:/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+ / 1K.**
1386 1386  
1387 -(((
1388 -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.
1389 -)))
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:/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:/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]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1390 1390  
1391 -(((
1392 -
1393 -)))
1394 1394  
1395 -(((
1396 1396  **Example3**: Connect to a 220v high active sensor.
1397 -)))
1398 1398  
1399 -(((
1400 1400  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1401 -)))
1402 1402  
1403 -* (((
1404 -Connect sensor’s output to DI1+ with a serial 50K resistor
1405 -)))
1406 -* (((
1407 -Connect sensor’s GND DI1-.
1408 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1409 1409  
1410 -(((
1411 1411  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1412 -)))
1413 1413  
1414 -(((
1415 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1416 -)))
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:/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:/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.**
1417 1417  
1418 -(((
1419 -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.
1420 -)))
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.
1421 1421  
1422 -
1423 1423  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1424 1424  
1425 1425  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1426,7 +1426,6 @@
1426 1426  
1427 1427  [[image:1653357531600-905.png]]
1428 1428  
1429 -
1430 1430  === 3.6.4 Analog Input Interface ===
1431 1431  
1432 1432  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:
... ... @@ -1454,7 +1454,6 @@
1454 1454  
1455 1455  [[image:1653357648330-671.png||height="155" width="733"]]
1456 1456  
1457 -
1458 1458  === 3.6.5 Relay Output ===
1459 1459  
1460 1460  (((
... ... @@ -1465,12 +1465,10 @@
1465 1465  
1466 1466  [[image:image-20220524100215-10.png||height="382" width="723"]]
1467 1467  
1468 -
1469 1469  == 3.7 LEDs Indicators ==
1470 1470  
1471 1471  [[image:image-20220524100748-11.png]]
1472 1472  
1473 -
1474 1474  = 4. Use AT Command =
1475 1475  
1476 1476  == 4.1 Access AT Command ==
... ... @@ -1671,8 +1671,6 @@
1671 1671  
1672 1672  (((
1673 1673  AT+CFG: Print all settings
1674 -
1675 -
1676 1676  )))
1677 1677  
1678 1678  == 4.2 Common AT Command Sequence ==
... ... @@ -1714,8 +1714,6 @@
1714 1714  
1715 1715  (((
1716 1716  (% style="background-color:#dcdcdc" %)ATZ
1717 -
1718 -
1719 1719  )))
1720 1720  
1721 1721  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1797,7 +1797,6 @@
1797 1797  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1798 1798  ATZ
1799 1799  
1800 -
1801 1801  = 5. FAQ =
1802 1802  
1803 1803  == 5.1 How to upgrade the image? ==
... ... @@ -1828,7 +1828,6 @@
1828 1828  
1829 1829  [[image:1653360054704-518.png||height="186" width="745"]]
1830 1830  
1831 -
1832 1832  (((
1833 1833  (((
1834 1834  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1837,8 +1837,6 @@
1837 1837  
1838 1838  (((
1839 1839  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1840 -
1841 -
1842 1842  )))
1843 1843  
1844 1844  (((
... ... @@ -1892,18 +1892,10 @@
1892 1892  
1893 1893  [[image:1653360498588-932.png||height="485" width="726"]]
1894 1894  
1895 -
1896 1896  == 5.4 Can I see counting event in Serial? ==
1897 1897  
1898 1898  (((
1899 1899  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.
1900 -
1901 -
1902 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1903 -
1904 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1905 -
1906 -
1907 1907  )))
1908 1908  
1909 1909  (((
... ... @@ -1917,8 +1917,11 @@
1917 1917  )))
1918 1918  
1919 1919  (((
1920 -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: [[How it work>>doc:Main.LoRaWAN Communication Debug.H5.1Howitwork]]
1921 1921  
1766 +
1767 +[[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]]
1768 +
1922 1922  
1923 1923  )))
1924 1924  
... ... @@ -1927,7 +1927,9 @@
1927 1927  )))
1928 1928  
1929 1929  (((
1930 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1777 +See this link for trouble shooting:
1778 +
1779 +[[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/]]
1931 1931  )))
1932 1932  
1933 1933  (((
... ... @@ -1939,7 +1939,9 @@
1939 1939  )))
1940 1940  
1941 1941  (((
1942 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1791 +It might be about the channels mapping. Please see this link for detail:
1792 +
1793 +[[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]]
1943 1943  )))
1944 1944  
1945 1945  (((
... ... @@ -2013,8 +2013,6 @@
2013 2013  (((
2014 2014  * (((
2015 2015  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2016 -
2017 -
2018 2018  )))
2019 2019  
2020 2020  = 8. Packing Info =
... ... @@ -2047,8 +2047,6 @@
2047 2047  * Device Weight: 105g
2048 2048  * Package Size / pcs : 14.5 x 8 x 5 cm
2049 2049  * Weight / pcs : 170g
2050 -
2051 -
2052 2052  )))
2053 2053  )))
2054 2054  
... ... @@ -2070,8 +2070,6 @@
2070 2070  (((
2071 2071  (((
2072 2072   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2073 -
2074 -
2075 2075  )))
2076 2076  
2077 2077  (((
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