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

From version 77.12
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.
... ... @@ -432,7 +432,6 @@
432 432  )))
433 433  )))
434 434  
435 -
436 436  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
437 437  
438 438  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -473,8 +473,6 @@
473 473  
474 474  (((
475 475  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
476 -
477 -
478 478  )))
479 479  
480 480  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
... ... @@ -557,7 +557,6 @@
557 557  )))
558 558  )))
559 559  
560 -
561 561  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
562 562  
563 563  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -598,8 +598,6 @@
598 598  
599 599  (((
600 600  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
601 -
602 -
603 603  )))
604 604  
605 605  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -628,7 +628,6 @@
628 628  
629 629  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
630 630  
631 -
632 632  (% style="color:#4f81bd" %)**Trigger base on current**:
633 633  
634 634  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -637,7 +637,6 @@
637 637  
638 638  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
639 639  
640 -
641 641  (% style="color:#4f81bd" %)**Trigger base on DI status**:
642 642  
643 643  DI status trigger Flag.
... ... @@ -724,13 +724,10 @@
724 724  
725 725  When device got this command, it will send the MOD6 payload.
726 726  
727 -
728 728  === 3.3.7 Payload Decoder ===
729 729  
730 730  (((
731 731  **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/]]
732 -
733 -
734 734  )))
735 735  
736 736  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -741,7 +741,7 @@
741 741  There are two kinds of Commands:
742 742  )))
743 743  
744 -* (% 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
745 745  
746 746  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
747 747  
... ... @@ -749,7 +749,6 @@
749 749  
750 750  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]]
751 751  
752 -
753 753  === 3.4.2 Sensor related commands ===
754 754  
755 755  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -772,7 +772,6 @@
772 772  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
773 773  )))
774 774  
775 -
776 776  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
777 777  
778 778  Set work mode.
... ... @@ -793,7 +793,6 @@
793 793  **0x0A aa     ~/~/ Same as AT+MOD=aa**
794 794  )))
795 795  
796 -
797 797  ==== 3.4.2.3 Poll an uplink ====
798 798  
799 799  * AT Command:
... ... @@ -809,10 +809,9 @@
809 809  
810 810  **Example**: 0x08FF, ask device to send an Uplink
811 811  
812 -
813 813  ==== 3.4.2.4 Enable Trigger Mode ====
814 814  
815 -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]]
816 816  
817 817  * AT Command:
818 818  
... ... @@ -832,7 +832,6 @@
832 832  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
833 833  )))
834 834  
835 -
836 836  ==== 3.4.2.5 Poll trigger settings ====
837 837  
838 838  Poll trigger settings,
... ... @@ -848,7 +848,6 @@
848 848  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
849 849  )))
850 850  
851 -
852 852  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
853 853  
854 854  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -871,7 +871,6 @@
871 871  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
872 872  )))
873 873  
874 -
875 875  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
876 876  
877 877  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -898,7 +898,6 @@
898 898  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
899 899  )))
900 900  
901 -
902 902  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
903 903  
904 904  Set DI2 trigger.
... ... @@ -925,10 +925,9 @@
925 925  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
926 926  )))
927 927  
928 -
929 929  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
930 930  
931 -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]]
932 932  
933 933  * AT Command:
934 934  
... ... @@ -941,19 +941,18 @@
941 941  
942 942  (% class="box infomessage" %)
943 943  (((
944 -**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]]**
945 945  )))
946 946  
947 -
948 948  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
949 949  
950 -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]]
951 951  
952 952  * AT Command:
953 953  
954 954  (% class="box infomessage" %)
955 955  (((
956 -**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]]**
957 957  )))
958 958  
959 959  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -960,10 +960,9 @@
960 960  
961 961  (% class="box infomessage" %)
962 962  (((
963 -**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]] **
964 964  )))
965 965  
966 -
967 967  ==== 3.4.2.11 Trigger – Set minimum interval ====
968 968  
969 969  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -982,7 +982,6 @@
982 982  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
983 983  )))
984 984  
985 -
986 986  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
987 987  
988 988  * AT Command:
... ... @@ -1157,13 +1157,13 @@
1157 1157  
1158 1158  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1159 1159  
1160 -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]]
1161 1161  
1162 1162  * AT Command:
1163 1163  
1164 1164  (% class="box infomessage" %)
1165 1165  (((
1166 -**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]]**
1167 1167  )))
1168 1168  
1169 1169  * Downlink Payload (prefix 0xA5):
... ... @@ -1173,7 +1173,6 @@
1173 1173  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1174 1174  )))
1175 1175  
1176 -
1177 1177  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1178 1178  
1179 1179  * AT Command:
... ... @@ -1198,7 +1198,6 @@
1198 1198  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1199 1199  )))
1200 1200  
1201 -
1202 1202  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1203 1203  
1204 1204  Clear counting for counting mode
... ... @@ -1217,7 +1217,6 @@
1217 1217  **0x A6 01     ~/~/ clear all counting,**
1218 1218  )))
1219 1219  
1220 -
1221 1221  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1222 1222  
1223 1223  * AT Command:
... ... @@ -1236,8 +1236,6 @@
1236 1236  
1237 1237  (((
1238 1238  range: aa bb cc:0 to 16777215,  (unit:second)
1239 -
1240 -
1241 1241  )))
1242 1242  
1243 1243  == 3.5 Integrate with Mydevice ==
... ... @@ -1258,7 +1258,6 @@
1258 1258  
1259 1259  [[image:image-20220524094641-12.png||height="402" width="718"]]
1260 1260  
1261 -
1262 1262  **Step 3**: Create an account or log in Mydevices.
1263 1263  
1264 1264  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1267,7 +1267,6 @@
1267 1267  
1268 1268  [[image:1653356838789-523.png||height="337" width="740"]]
1269 1269  
1270 -
1271 1271  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1272 1272  
1273 1273  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1280,7 +1280,6 @@
1280 1280  
1281 1281  [[image:image-20220524094909-5.png||height="341" width="734"]]
1282 1282  
1283 -
1284 1284  == 3.6 Interface Detail ==
1285 1285  
1286 1286  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1289,7 +1289,6 @@
1289 1289  
1290 1290  [[image:1653356991268-289.png]]
1291 1291  
1292 -
1293 1293  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1294 1294  
1295 1295  (((
... ... @@ -1305,105 +1305,51 @@
1305 1305  [[image:1653357170703-587.png]]
1306 1306  
1307 1307  (((
1308 -(((
1309 1309  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1310 1310  )))
1311 -)))
1312 1312  
1313 -(((
1314 -
1315 -)))
1316 1316  
1317 -(((
1318 1318  **Example1**: Connect to a Low active sensor.
1319 -)))
1320 1320  
1321 -(((
1322 1322  This type of sensor will output a low signal GND when active.
1323 -)))
1324 1324  
1325 -* (((
1326 -Connect sensor’s output to DI1-
1327 -)))
1328 -* (((
1329 -Connect sensor’s VCC to DI1+.
1330 -)))
1265 +* Connect sensor’s output to DI1-
1266 +* Connect sensor’s VCC to DI1+.
1331 1331  
1332 -(((
1333 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1334 -)))
1268 +So when sensor active, the current between NEC2501 pin1 and pin2 is: ​​
1335 1335  
1336 -(((
1337 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1338 -)))
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.**
1339 1339  
1340 -(((
1341 -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.
1342 -)))
1272 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1343 1343  
1344 -(((
1345 -
1346 -)))
1347 1347  
1348 -(((
1349 1349  **Example2**: Connect to a High active sensor.
1350 -)))
1351 1351  
1352 -(((
1353 1353  This type of sensor will output a high signal (example 24v) when active.
1354 -)))
1355 1355  
1356 -* (((
1357 -Connect sensor’s output to DI1+
1358 -)))
1359 -* (((
1360 -Connect sensor’s GND DI1-.
1361 -)))
1279 +* Connect sensor’s output to DI1+
1280 +* Connect sensor’s GND DI1-.
1362 1362  
1363 -(((
1364 1364  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1365 -)))
1366 1366  
1367 -(((
1368 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1369 -)))
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.**
1370 1370  
1371 -(((
1372 -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.
1373 -)))
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.
1374 1374  
1375 -(((
1376 -
1377 -)))
1378 1378  
1379 -(((
1380 1380  **Example3**: Connect to a 220v high active sensor.
1381 -)))
1382 1382  
1383 -(((
1384 1384  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1385 -)))
1386 1386  
1387 -* (((
1388 -Connect sensor’s output to DI1+ with a serial 50K resistor
1389 -)))
1390 -* (((
1391 -Connect sensor’s GND DI1-.
1392 -)))
1293 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1294 +* Connect sensor’s GND DI1-.
1393 1393  
1394 -(((
1395 1395  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1396 -)))
1397 1397  
1398 -(((
1399 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1400 -)))
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.**
1401 1401  
1402 -(((
1403 -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.
1404 -)))
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.
1405 1405  
1406 -
1407 1407  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1408 1408  
1409 1409  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1410,7 +1410,6 @@
1410 1410  
1411 1411  [[image:1653357531600-905.png]]
1412 1412  
1413 -
1414 1414  === 3.6.4 Analog Input Interface ===
1415 1415  
1416 1416  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:
... ... @@ -1438,7 +1438,6 @@
1438 1438  
1439 1439  [[image:1653357648330-671.png||height="155" width="733"]]
1440 1440  
1441 -
1442 1442  === 3.6.5 Relay Output ===
1443 1443  
1444 1444  (((
... ... @@ -1449,12 +1449,10 @@
1449 1449  
1450 1450  [[image:image-20220524100215-10.png||height="382" width="723"]]
1451 1451  
1452 -
1453 1453  == 3.7 LEDs Indicators ==
1454 1454  
1455 1455  [[image:image-20220524100748-11.png]]
1456 1456  
1457 -
1458 1458  = 4. Use AT Command =
1459 1459  
1460 1460  == 4.1 Access AT Command ==
... ... @@ -1655,8 +1655,6 @@
1655 1655  
1656 1656  (((
1657 1657  AT+CFG: Print all settings
1658 -
1659 -
1660 1660  )))
1661 1661  
1662 1662  == 4.2 Common AT Command Sequence ==
... ... @@ -1698,8 +1698,6 @@
1698 1698  
1699 1699  (((
1700 1700  (% style="background-color:#dcdcdc" %)ATZ
1701 -
1702 -
1703 1703  )))
1704 1704  
1705 1705  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1781,7 +1781,6 @@
1781 1781  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1782 1782  ATZ
1783 1783  
1784 -
1785 1785  = 5. FAQ =
1786 1786  
1787 1787  == 5.1 How to upgrade the image? ==
... ... @@ -1812,7 +1812,6 @@
1812 1812  
1813 1813  [[image:1653360054704-518.png||height="186" width="745"]]
1814 1814  
1815 -
1816 1816  (((
1817 1817  (((
1818 1818  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1821,8 +1821,6 @@
1821 1821  
1822 1822  (((
1823 1823  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1824 -
1825 -
1826 1826  )))
1827 1827  
1828 1828  (((
... ... @@ -1876,18 +1876,10 @@
1876 1876  
1877 1877  [[image:1653360498588-932.png||height="485" width="726"]]
1878 1878  
1879 -
1880 1880  == 5.4 Can I see counting event in Serial? ==
1881 1881  
1882 1882  (((
1883 1883  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.
1884 -
1885 -
1886 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1887 -
1888 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1889 -
1890 -
1891 1891  )))
1892 1892  
1893 1893  (((
... ... @@ -1901,8 +1901,10 @@
1901 1901  )))
1902 1902  
1903 1903  (((
1904 -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:
1905 1905  
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 +
1906 1906  
1907 1907  )))
1908 1908  
... ... @@ -1911,7 +1911,9 @@
1911 1911  )))
1912 1912  
1913 1913  (((
1914 -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/]]
1915 1915  )))
1916 1916  
1917 1917  (((
... ... @@ -1923,7 +1923,9 @@
1923 1923  )))
1924 1924  
1925 1925  (((
1926 -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]]
1927 1927  )))
1928 1928  
1929 1929  (((
... ... @@ -1997,8 +1997,6 @@
1997 1997  (((
1998 1998  * (((
1999 1999  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2000 -
2001 -
2002 2002  )))
2003 2003  
2004 2004  = 8. Packing Info =
... ... @@ -2031,8 +2031,6 @@
2031 2031  * Device Weight: 105g
2032 2032  * Package Size / pcs : 14.5 x 8 x 5 cm
2033 2033  * Weight / pcs : 170g
2034 -
2035 -
2036 2036  )))
2037 2037  )))
2038 2038  
... ... @@ -2054,8 +2054,6 @@
2054 2054  (((
2055 2055  (((
2056 2056   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2057 -
2058 -
2059 2059  )))
2060 2060  
2061 2061  (((
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