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

From version 77.14
edited by Xiaoling
on 2022/06/10 08:39
Change comment: There is no comment for this version
To version 68.18
edited by Xiaoling
on 2022/05/25 15:23
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  (((
... ... @@ -51,8 +51,6 @@
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  )))
... ... @@ -164,8 +164,6 @@
164 164  
165 165  )))
166 166  
167 -
168 -
169 169  == 1.3 Features ==
170 170  
171 171  * LoRaWAN Class A & Class C protocol
... ... @@ -177,7 +177,6 @@
177 177  * Counting
178 178  
179 179  
180 -
181 181  == 1.4  Applications ==
182 182  
183 183  * Smart Buildings & Home Automation
... ... @@ -188,7 +188,6 @@
188 188  * Smart Factory
189 189  
190 190  
191 -
192 192  == 1.5 Hardware Variants ==
193 193  
194 194  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -215,7 +215,6 @@
215 215  [[image:1653297104069-180.png]]
216 216  
217 217  
218 -
219 219  = 3. Operation Mode =
220 220  
221 221  == 3.1 How it works? ==
... ... @@ -230,8 +230,6 @@
230 230  
231 231  )))
232 232  
233 -
234 -
235 235  == 3.2 Example to join LoRaWAN network ==
236 236  
237 237  (((
... ... @@ -273,7 +273,6 @@
273 273  [[image:1653298044601-602.png||height="405" width="709"]]
274 274  
275 275  
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:
... ... @@ -286,7 +286,6 @@
286 286  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
287 287  
288 288  
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.
... ... @@ -560,7 +560,6 @@
560 560  )))
561 561  )))
562 562  
563 -
564 564  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
565 565  
566 566  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -601,8 +601,6 @@
601 601  
602 602  (((
603 603  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
604 -
605 -
606 606  )))
607 607  
608 608  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -631,7 +631,6 @@
631 631  
632 632  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
633 633  
634 -
635 635  (% style="color:#4f81bd" %)**Trigger base on current**:
636 636  
637 637  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -640,7 +640,6 @@
640 640  
641 641  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
642 642  
643 -
644 644  (% style="color:#4f81bd" %)**Trigger base on DI status**:
645 645  
646 646  DI status trigger Flag.
... ... @@ -727,13 +727,10 @@
727 727  
728 728  When device got this command, it will send the MOD6 payload.
729 729  
730 -
731 731  === 3.3.7 Payload Decoder ===
732 732  
733 733  (((
734 734  **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/]]
735 -
736 -
737 737  )))
738 738  
739 739  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -744,7 +744,7 @@
744 744  There are two kinds of Commands:
745 745  )))
746 746  
747 -* (% 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]]
714 +* (% 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
748 748  
749 749  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
750 750  
... ... @@ -752,7 +752,6 @@
752 752  
753 753  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]]
754 754  
755 -
756 756  === 3.4.2 Sensor related commands ===
757 757  
758 758  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -775,7 +775,6 @@
775 775  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
776 776  )))
777 777  
778 -
779 779  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
780 780  
781 781  Set work mode.
... ... @@ -796,7 +796,6 @@
796 796  **0x0A aa     ~/~/ Same as AT+MOD=aa**
797 797  )))
798 798  
799 -
800 800  ==== 3.4.2.3 Poll an uplink ====
801 801  
802 802  * AT Command:
... ... @@ -812,10 +812,9 @@
812 812  
813 813  **Example**: 0x08FF, ask device to send an Uplink
814 814  
815 -
816 816  ==== 3.4.2.4 Enable Trigger Mode ====
817 817  
818 -Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
781 +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]]
819 819  
820 820  * AT Command:
821 821  
... ... @@ -835,7 +835,6 @@
835 835  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
836 836  )))
837 837  
838 -
839 839  ==== 3.4.2.5 Poll trigger settings ====
840 840  
841 841  Poll trigger settings,
... ... @@ -851,7 +851,6 @@
851 851  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
852 852  )))
853 853  
854 -
855 855  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
856 856  
857 857  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -874,7 +874,6 @@
874 874  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
875 875  )))
876 876  
877 -
878 878  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
879 879  
880 880  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -901,7 +901,6 @@
901 901  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
902 902  )))
903 903  
904 -
905 905  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
906 906  
907 907  Set DI2 trigger.
... ... @@ -928,10 +928,9 @@
928 928  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
929 929  )))
930 930  
931 -
932 932  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
933 933  
934 -Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
892 +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]]
935 935  
936 936  * AT Command:
937 937  
... ... @@ -944,19 +944,18 @@
944 944  
945 945  (% class="box infomessage" %)
946 946  (((
947 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
905 +**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]]**
948 948  )))
949 949  
950 -
951 951  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
952 952  
953 -Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
910 +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]]
954 954  
955 955  * AT Command:
956 956  
957 957  (% class="box infomessage" %)
958 958  (((
959 -**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
916 +**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]]**
960 960  )))
961 961  
962 962  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -963,10 +963,9 @@
963 963  
964 964  (% class="box infomessage" %)
965 965  (((
966 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
923 +**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]] **
967 967  )))
968 968  
969 -
970 970  ==== 3.4.2.11 Trigger – Set minimum interval ====
971 971  
972 972  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -985,7 +985,6 @@
985 985  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
986 986  )))
987 987  
988 -
989 989  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
990 990  
991 991  * AT Command:
... ... @@ -1160,13 +1160,13 @@
1160 1160  
1161 1161  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1162 1162  
1163 -When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1118 +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]]
1164 1164  
1165 1165  * AT Command:
1166 1166  
1167 1167  (% class="box infomessage" %)
1168 1168  (((
1169 -**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1124 +**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]]**
1170 1170  )))
1171 1171  
1172 1172  * Downlink Payload (prefix 0xA5):
... ... @@ -1176,7 +1176,6 @@
1176 1176  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1177 1177  )))
1178 1178  
1179 -
1180 1180  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1181 1181  
1182 1182  * AT Command:
... ... @@ -1201,7 +1201,6 @@
1201 1201  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1202 1202  )))
1203 1203  
1204 -
1205 1205  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1206 1206  
1207 1207  Clear counting for counting mode
... ... @@ -1220,7 +1220,6 @@
1220 1220  **0x A6 01     ~/~/ clear all counting,**
1221 1221  )))
1222 1222  
1223 -
1224 1224  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1225 1225  
1226 1226  * AT Command:
... ... @@ -1239,8 +1239,6 @@
1239 1239  
1240 1240  (((
1241 1241  range: aa bb cc:0 to 16777215,  (unit:second)
1242 -
1243 -
1244 1244  )))
1245 1245  
1246 1246  == 3.5 Integrate with Mydevice ==
... ... @@ -1261,7 +1261,6 @@
1261 1261  
1262 1262  [[image:image-20220524094641-12.png||height="402" width="718"]]
1263 1263  
1264 -
1265 1265  **Step 3**: Create an account or log in Mydevices.
1266 1266  
1267 1267  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1270,7 +1270,6 @@
1270 1270  
1271 1271  [[image:1653356838789-523.png||height="337" width="740"]]
1272 1272  
1273 -
1274 1274  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1275 1275  
1276 1276  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1283,7 +1283,6 @@
1283 1283  
1284 1284  [[image:image-20220524094909-5.png||height="341" width="734"]]
1285 1285  
1286 -
1287 1287  == 3.6 Interface Detail ==
1288 1288  
1289 1289  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1292,7 +1292,6 @@
1292 1292  
1293 1293  [[image:1653356991268-289.png]]
1294 1294  
1295 -
1296 1296  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1297 1297  
1298 1298  (((
... ... @@ -1308,105 +1308,51 @@
1308 1308  [[image:1653357170703-587.png]]
1309 1309  
1310 1310  (((
1311 -(((
1312 1312  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1313 1313  )))
1314 -)))
1315 1315  
1316 -(((
1317 -
1318 -)))
1319 1319  
1320 -(((
1321 1321  **Example1**: Connect to a Low active sensor.
1322 -)))
1323 1323  
1324 -(((
1325 1325  This type of sensor will output a low signal GND when active.
1326 -)))
1327 1327  
1328 -* (((
1329 -Connect sensor’s output to DI1-
1330 -)))
1331 -* (((
1332 -Connect sensor’s VCC to DI1+.
1333 -)))
1265 +* Connect sensor’s output to DI1-
1266 +* Connect sensor’s VCC to DI1+.
1334 1334  
1335 -(((
1336 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1337 -)))
1268 +So when sensor active, the current between NEC2501 pin1 and pin2 is: ​​
1338 1338  
1339 -(((
1340 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1341 -)))
1270 +[[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.**
1342 1342  
1343 -(((
1344 -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.
1345 -)))
1272 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1346 1346  
1347 -(((
1348 -
1349 -)))
1350 1350  
1351 -(((
1352 1352  **Example2**: Connect to a High active sensor.
1353 -)))
1354 1354  
1355 -(((
1356 1356  This type of sensor will output a high signal (example 24v) when active.
1357 -)))
1358 1358  
1359 -* (((
1360 -Connect sensor’s output to DI1+
1361 -)))
1362 -* (((
1363 -Connect sensor’s GND DI1-.
1364 -)))
1279 +* Connect sensor’s output to DI1+
1280 +* Connect sensor’s GND DI1-.
1365 1365  
1366 -(((
1367 1367  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1368 -)))
1369 1369  
1370 -(((
1371 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1372 -)))
1284 +[[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.**
1373 1373  
1374 -(((
1375 -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.
1376 -)))
1286 +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.
1377 1377  
1378 -(((
1379 -
1380 -)))
1381 1381  
1382 -(((
1383 1383  **Example3**: Connect to a 220v high active sensor.
1384 -)))
1385 1385  
1386 -(((
1387 1387  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1388 -)))
1389 1389  
1390 -* (((
1391 -Connect sensor’s output to DI1+ with a serial 50K resistor
1392 -)))
1393 -* (((
1394 -Connect sensor’s GND DI1-.
1395 -)))
1293 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1294 +* Connect sensor’s GND DI1-.
1396 1396  
1397 -(((
1398 1398  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1399 -)))
1400 1400  
1401 -(((
1402 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1403 -)))
1298 + [[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.**
1404 1404  
1405 -(((
1406 -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.
1407 -)))
1300 +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.
1408 1408  
1409 -
1410 1410  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1411 1411  
1412 1412  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1413,7 +1413,6 @@
1413 1413  
1414 1414  [[image:1653357531600-905.png]]
1415 1415  
1416 -
1417 1417  === 3.6.4 Analog Input Interface ===
1418 1418  
1419 1419  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:
... ... @@ -1441,7 +1441,6 @@
1441 1441  
1442 1442  [[image:1653357648330-671.png||height="155" width="733"]]
1443 1443  
1444 -
1445 1445  === 3.6.5 Relay Output ===
1446 1446  
1447 1447  (((
... ... @@ -1452,12 +1452,10 @@
1452 1452  
1453 1453  [[image:image-20220524100215-10.png||height="382" width="723"]]
1454 1454  
1455 -
1456 1456  == 3.7 LEDs Indicators ==
1457 1457  
1458 1458  [[image:image-20220524100748-11.png]]
1459 1459  
1460 -
1461 1461  = 4. Use AT Command =
1462 1462  
1463 1463  == 4.1 Access AT Command ==
... ... @@ -1658,8 +1658,6 @@
1658 1658  
1659 1659  (((
1660 1660  AT+CFG: Print all settings
1661 -
1662 -
1663 1663  )))
1664 1664  
1665 1665  == 4.2 Common AT Command Sequence ==
... ... @@ -1701,8 +1701,6 @@
1701 1701  
1702 1702  (((
1703 1703  (% style="background-color:#dcdcdc" %)ATZ
1704 -
1705 -
1706 1706  )))
1707 1707  
1708 1708  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1784,7 +1784,6 @@
1784 1784  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1785 1785  ATZ
1786 1786  
1787 -
1788 1788  = 5. FAQ =
1789 1789  
1790 1790  == 5.1 How to upgrade the image? ==
... ... @@ -1815,7 +1815,6 @@
1815 1815  
1816 1816  [[image:1653360054704-518.png||height="186" width="745"]]
1817 1817  
1818 -
1819 1819  (((
1820 1820  (((
1821 1821  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1824,8 +1824,6 @@
1824 1824  
1825 1825  (((
1826 1826  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1827 -
1828 -
1829 1829  )))
1830 1830  
1831 1831  (((
... ... @@ -1879,18 +1879,10 @@
1879 1879  
1880 1880  [[image:1653360498588-932.png||height="485" width="726"]]
1881 1881  
1882 -
1883 1883  == 5.4 Can I see counting event in Serial? ==
1884 1884  
1885 1885  (((
1886 1886  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.
1887 -
1888 -
1889 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1890 -
1891 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1892 -
1893 -
1894 1894  )))
1895 1895  
1896 1896  (((
... ... @@ -1904,8 +1904,10 @@
1904 1904  )))
1905 1905  
1906 1906  (((
1907 -Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1779 +Please see this link for how to debug:
1908 1908  
1781 +[[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]]
1782 +
1909 1909  
1910 1910  )))
1911 1911  
... ... @@ -1914,7 +1914,9 @@
1914 1914  )))
1915 1915  
1916 1916  (((
1917 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1791 +See this link for trouble shooting:
1792 +
1793 +[[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/]]
1918 1918  )))
1919 1919  
1920 1920  (((
... ... @@ -1926,7 +1926,9 @@
1926 1926  )))
1927 1927  
1928 1928  (((
1929 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1805 +It might be about the channels mapping. Please see this link for detail:
1806 +
1807 +[[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]]
1930 1930  )))
1931 1931  
1932 1932  (((
... ... @@ -2000,8 +2000,6 @@
2000 2000  (((
2001 2001  * (((
2002 2002  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2003 -
2004 -
2005 2005  )))
2006 2006  
2007 2007  = 8. Packing Info =
... ... @@ -2034,8 +2034,6 @@
2034 2034  * Device Weight: 105g
2035 2035  * Package Size / pcs : 14.5 x 8 x 5 cm
2036 2036  * Weight / pcs : 170g
2037 -
2038 -
2039 2039  )))
2040 2040  )))
2041 2041  
... ... @@ -2057,8 +2057,6 @@
2057 2057  (((
2058 2058  (((
2059 2059   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2060 -
2061 -
2062 2062  )))
2063 2063  
2064 2064  (((
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