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

From version 77.13
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.
... ... @@ -474,8 +474,6 @@
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  
481 481  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
... ... @@ -558,7 +558,6 @@
558 558  )))
559 559  )))
560 560  
561 -
562 562  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
563 563  
564 564  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -599,8 +599,6 @@
599 599  
600 600  (((
601 601  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
602 -
603 -
604 604  )))
605 605  
606 606  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -629,7 +629,6 @@
629 629  
630 630  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
631 631  
632 -
633 633  (% style="color:#4f81bd" %)**Trigger base on current**:
634 634  
635 635  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -638,7 +638,6 @@
638 638  
639 639  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
640 640  
641 -
642 642  (% style="color:#4f81bd" %)**Trigger base on DI status**:
643 643  
644 644  DI status trigger Flag.
... ... @@ -725,13 +725,10 @@
725 725  
726 726  When device got this command, it will send the MOD6 payload.
727 727  
728 -
729 729  === 3.3.7 Payload Decoder ===
730 730  
731 731  (((
732 732  **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/]]
733 -
734 -
735 735  )))
736 736  
737 737  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -742,7 +742,7 @@
742 742  There are two kinds of Commands:
743 743  )))
744 744  
745 -* (% 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
746 746  
747 747  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
748 748  
... ... @@ -750,7 +750,6 @@
750 750  
751 751  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]]
752 752  
753 -
754 754  === 3.4.2 Sensor related commands ===
755 755  
756 756  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -773,7 +773,6 @@
773 773  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
774 774  )))
775 775  
776 -
777 777  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
778 778  
779 779  Set work mode.
... ... @@ -794,7 +794,6 @@
794 794  **0x0A aa     ~/~/ Same as AT+MOD=aa**
795 795  )))
796 796  
797 -
798 798  ==== 3.4.2.3 Poll an uplink ====
799 799  
800 800  * AT Command:
... ... @@ -810,10 +810,9 @@
810 810  
811 811  **Example**: 0x08FF, ask device to send an Uplink
812 812  
813 -
814 814  ==== 3.4.2.4 Enable Trigger Mode ====
815 815  
816 -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]]
817 817  
818 818  * AT Command:
819 819  
... ... @@ -833,7 +833,6 @@
833 833  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
834 834  )))
835 835  
836 -
837 837  ==== 3.4.2.5 Poll trigger settings ====
838 838  
839 839  Poll trigger settings,
... ... @@ -849,7 +849,6 @@
849 849  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
850 850  )))
851 851  
852 -
853 853  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
854 854  
855 855  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -872,7 +872,6 @@
872 872  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
873 873  )))
874 874  
875 -
876 876  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
877 877  
878 878  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -899,7 +899,6 @@
899 899  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
900 900  )))
901 901  
902 -
903 903  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
904 904  
905 905  Set DI2 trigger.
... ... @@ -926,10 +926,9 @@
926 926  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
927 927  )))
928 928  
929 -
930 930  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
931 931  
932 -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]]
933 933  
934 934  * AT Command:
935 935  
... ... @@ -942,19 +942,18 @@
942 942  
943 943  (% class="box infomessage" %)
944 944  (((
945 -**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]]**
946 946  )))
947 947  
948 -
949 949  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
950 950  
951 -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]]
952 952  
953 953  * AT Command:
954 954  
955 955  (% class="box infomessage" %)
956 956  (((
957 -**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]]**
958 958  )))
959 959  
960 960  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -961,10 +961,9 @@
961 961  
962 962  (% class="box infomessage" %)
963 963  (((
964 -**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]] **
965 965  )))
966 966  
967 -
968 968  ==== 3.4.2.11 Trigger – Set minimum interval ====
969 969  
970 970  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -983,7 +983,6 @@
983 983  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
984 984  )))
985 985  
986 -
987 987  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
988 988  
989 989  * AT Command:
... ... @@ -1158,13 +1158,13 @@
1158 1158  
1159 1159  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1160 1160  
1161 -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]]
1162 1162  
1163 1163  * AT Command:
1164 1164  
1165 1165  (% class="box infomessage" %)
1166 1166  (((
1167 -**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]]**
1168 1168  )))
1169 1169  
1170 1170  * Downlink Payload (prefix 0xA5):
... ... @@ -1174,7 +1174,6 @@
1174 1174  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1175 1175  )))
1176 1176  
1177 -
1178 1178  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1179 1179  
1180 1180  * AT Command:
... ... @@ -1199,7 +1199,6 @@
1199 1199  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1200 1200  )))
1201 1201  
1202 -
1203 1203  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1204 1204  
1205 1205  Clear counting for counting mode
... ... @@ -1218,7 +1218,6 @@
1218 1218  **0x A6 01     ~/~/ clear all counting,**
1219 1219  )))
1220 1220  
1221 -
1222 1222  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1223 1223  
1224 1224  * AT Command:
... ... @@ -1237,8 +1237,6 @@
1237 1237  
1238 1238  (((
1239 1239  range: aa bb cc:0 to 16777215,  (unit:second)
1240 -
1241 -
1242 1242  )))
1243 1243  
1244 1244  == 3.5 Integrate with Mydevice ==
... ... @@ -1259,7 +1259,6 @@
1259 1259  
1260 1260  [[image:image-20220524094641-12.png||height="402" width="718"]]
1261 1261  
1262 -
1263 1263  **Step 3**: Create an account or log in Mydevices.
1264 1264  
1265 1265  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1268,7 +1268,6 @@
1268 1268  
1269 1269  [[image:1653356838789-523.png||height="337" width="740"]]
1270 1270  
1271 -
1272 1272  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1273 1273  
1274 1274  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1281,7 +1281,6 @@
1281 1281  
1282 1282  [[image:image-20220524094909-5.png||height="341" width="734"]]
1283 1283  
1284 -
1285 1285  == 3.6 Interface Detail ==
1286 1286  
1287 1287  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1290,7 +1290,6 @@
1290 1290  
1291 1291  [[image:1653356991268-289.png]]
1292 1292  
1293 -
1294 1294  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1295 1295  
1296 1296  (((
... ... @@ -1306,105 +1306,51 @@
1306 1306  [[image:1653357170703-587.png]]
1307 1307  
1308 1308  (((
1309 -(((
1310 1310  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1311 1311  )))
1312 -)))
1313 1313  
1314 -(((
1315 -
1316 -)))
1317 1317  
1318 -(((
1319 1319  **Example1**: Connect to a Low active sensor.
1320 -)))
1321 1321  
1322 -(((
1323 1323  This type of sensor will output a low signal GND when active.
1324 -)))
1325 1325  
1326 -* (((
1327 -Connect sensor’s output to DI1-
1328 -)))
1329 -* (((
1330 -Connect sensor’s VCC to DI1+.
1331 -)))
1265 +* Connect sensor’s output to DI1-
1266 +* Connect sensor’s VCC to DI1+.
1332 1332  
1333 -(((
1334 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1335 -)))
1268 +So when sensor active, the current between NEC2501 pin1 and pin2 is: ​​
1336 1336  
1337 -(((
1338 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1339 -)))
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.**
1340 1340  
1341 -(((
1342 -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.
1343 -)))
1272 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1344 1344  
1345 -(((
1346 -
1347 -)))
1348 1348  
1349 -(((
1350 1350  **Example2**: Connect to a High active sensor.
1351 -)))
1352 1352  
1353 -(((
1354 1354  This type of sensor will output a high signal (example 24v) when active.
1355 -)))
1356 1356  
1357 -* (((
1358 -Connect sensor’s output to DI1+
1359 -)))
1360 -* (((
1361 -Connect sensor’s GND DI1-.
1362 -)))
1279 +* Connect sensor’s output to DI1+
1280 +* Connect sensor’s GND DI1-.
1363 1363  
1364 -(((
1365 1365  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1366 -)))
1367 1367  
1368 -(((
1369 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1370 -)))
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.**
1371 1371  
1372 -(((
1373 -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.
1374 -)))
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.
1375 1375  
1376 -(((
1377 -
1378 -)))
1379 1379  
1380 -(((
1381 1381  **Example3**: Connect to a 220v high active sensor.
1382 -)))
1383 1383  
1384 -(((
1385 1385  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1386 -)))
1387 1387  
1388 -* (((
1389 -Connect sensor’s output to DI1+ with a serial 50K resistor
1390 -)))
1391 -* (((
1392 -Connect sensor’s GND DI1-.
1393 -)))
1293 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1294 +* Connect sensor’s GND DI1-.
1394 1394  
1395 -(((
1396 1396  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1397 -)))
1398 1398  
1399 -(((
1400 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1401 -)))
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.**
1402 1402  
1403 -(((
1404 -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.
1405 -)))
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.
1406 1406  
1407 -
1408 1408  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1409 1409  
1410 1410  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1411,7 +1411,6 @@
1411 1411  
1412 1412  [[image:1653357531600-905.png]]
1413 1413  
1414 -
1415 1415  === 3.6.4 Analog Input Interface ===
1416 1416  
1417 1417  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:
... ... @@ -1439,7 +1439,6 @@
1439 1439  
1440 1440  [[image:1653357648330-671.png||height="155" width="733"]]
1441 1441  
1442 -
1443 1443  === 3.6.5 Relay Output ===
1444 1444  
1445 1445  (((
... ... @@ -1450,12 +1450,10 @@
1450 1450  
1451 1451  [[image:image-20220524100215-10.png||height="382" width="723"]]
1452 1452  
1453 -
1454 1454  == 3.7 LEDs Indicators ==
1455 1455  
1456 1456  [[image:image-20220524100748-11.png]]
1457 1457  
1458 -
1459 1459  = 4. Use AT Command =
1460 1460  
1461 1461  == 4.1 Access AT Command ==
... ... @@ -1656,8 +1656,6 @@
1656 1656  
1657 1657  (((
1658 1658  AT+CFG: Print all settings
1659 -
1660 -
1661 1661  )))
1662 1662  
1663 1663  == 4.2 Common AT Command Sequence ==
... ... @@ -1699,8 +1699,6 @@
1699 1699  
1700 1700  (((
1701 1701  (% style="background-color:#dcdcdc" %)ATZ
1702 -
1703 -
1704 1704  )))
1705 1705  
1706 1706  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1782,7 +1782,6 @@
1782 1782  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1783 1783  ATZ
1784 1784  
1785 -
1786 1786  = 5. FAQ =
1787 1787  
1788 1788  == 5.1 How to upgrade the image? ==
... ... @@ -1813,7 +1813,6 @@
1813 1813  
1814 1814  [[image:1653360054704-518.png||height="186" width="745"]]
1815 1815  
1816 -
1817 1817  (((
1818 1818  (((
1819 1819  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1822,8 +1822,6 @@
1822 1822  
1823 1823  (((
1824 1824  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1825 -
1826 -
1827 1827  )))
1828 1828  
1829 1829  (((
... ... @@ -1877,18 +1877,10 @@
1877 1877  
1878 1878  [[image:1653360498588-932.png||height="485" width="726"]]
1879 1879  
1880 -
1881 1881  == 5.4 Can I see counting event in Serial? ==
1882 1882  
1883 1883  (((
1884 1884  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.
1885 -
1886 -
1887 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1888 -
1889 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1890 -
1891 -
1892 1892  )))
1893 1893  
1894 1894  (((
... ... @@ -1902,8 +1902,10 @@
1902 1902  )))
1903 1903  
1904 1904  (((
1905 -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:
1906 1906  
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 +
1907 1907  
1908 1908  )))
1909 1909  
... ... @@ -1912,7 +1912,9 @@
1912 1912  )))
1913 1913  
1914 1914  (((
1915 -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/]]
1916 1916  )))
1917 1917  
1918 1918  (((
... ... @@ -1924,7 +1924,9 @@
1924 1924  )))
1925 1925  
1926 1926  (((
1927 -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]]
1928 1928  )))
1929 1929  
1930 1930  (((
... ... @@ -1998,8 +1998,6 @@
1998 1998  (((
1999 1999  * (((
2000 2000  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2001 -
2002 -
2003 2003  )))
2004 2004  
2005 2005  = 8. Packing Info =
... ... @@ -2032,8 +2032,6 @@
2032 2032  * Device Weight: 105g
2033 2033  * Package Size / pcs : 14.5 x 8 x 5 cm
2034 2034  * Weight / pcs : 170g
2035 -
2036 -
2037 2037  )))
2038 2038  )))
2039 2039  
... ... @@ -2055,8 +2055,6 @@
2055 2055  (((
2056 2056  (((
2057 2057   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2058 -
2059 -
2060 2060  )))
2061 2061  
2062 2062  (((
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