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

From version 77.15
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.
... ... @@ -560,8 +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.
... ... @@ -602,8 +602,6 @@
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  
609 609  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -632,7 +632,6 @@
632 632  
633 633  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
634 634  
635 -
636 636  (% style="color:#4f81bd" %)**Trigger base on current**:
637 637  
638 638  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -641,7 +641,6 @@
641 641  
642 642  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
643 643  
644 -
645 645  (% style="color:#4f81bd" %)**Trigger base on DI status**:
646 646  
647 647  DI status trigger Flag.
... ... @@ -728,13 +728,10 @@
728 728  
729 729  When device got this command, it will send the MOD6 payload.
730 730  
731 -
732 732  === 3.3.7 Payload Decoder ===
733 733  
734 734  (((
735 735  **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/]]
736 -
737 -
738 738  )))
739 739  
740 740  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -745,7 +745,7 @@
745 745  There are two kinds of Commands:
746 746  )))
747 747  
748 -* (% 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
749 749  
750 750  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
751 751  
... ... @@ -753,7 +753,6 @@
753 753  
754 754  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]]
755 755  
756 -
757 757  === 3.4.2 Sensor related commands ===
758 758  
759 759  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -776,7 +776,6 @@
776 776  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
777 777  )))
778 778  
779 -
780 780  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
781 781  
782 782  Set work mode.
... ... @@ -797,7 +797,6 @@
797 797  **0x0A aa     ~/~/ Same as AT+MOD=aa**
798 798  )))
799 799  
800 -
801 801  ==== 3.4.2.3 Poll an uplink ====
802 802  
803 803  * AT Command:
... ... @@ -813,10 +813,9 @@
813 813  
814 814  **Example**: 0x08FF, ask device to send an Uplink
815 815  
816 -
817 817  ==== 3.4.2.4 Enable Trigger Mode ====
818 818  
819 -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]]
820 820  
821 821  * AT Command:
822 822  
... ... @@ -836,7 +836,6 @@
836 836  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
837 837  )))
838 838  
839 -
840 840  ==== 3.4.2.5 Poll trigger settings ====
841 841  
842 842  Poll trigger settings,
... ... @@ -852,7 +852,6 @@
852 852  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
853 853  )))
854 854  
855 -
856 856  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
857 857  
858 858  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -875,7 +875,6 @@
875 875  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
876 876  )))
877 877  
878 -
879 879  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
880 880  
881 881  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -902,7 +902,6 @@
902 902  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
903 903  )))
904 904  
905 -
906 906  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
907 907  
908 908  Set DI2 trigger.
... ... @@ -929,10 +929,9 @@
929 929  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
930 930  )))
931 931  
932 -
933 933  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
934 934  
935 -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]]
936 936  
937 937  * AT Command:
938 938  
... ... @@ -945,19 +945,18 @@
945 945  
946 946  (% class="box infomessage" %)
947 947  (((
948 -**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]]**
949 949  )))
950 950  
951 -
952 952  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
953 953  
954 -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]]
955 955  
956 956  * AT Command:
957 957  
958 958  (% class="box infomessage" %)
959 959  (((
960 -**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]]**
961 961  )))
962 962  
963 963  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -964,10 +964,9 @@
964 964  
965 965  (% class="box infomessage" %)
966 966  (((
967 -**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]] **
968 968  )))
969 969  
970 -
971 971  ==== 3.4.2.11 Trigger – Set minimum interval ====
972 972  
973 973  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -986,7 +986,6 @@
986 986  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
987 987  )))
988 988  
989 -
990 990  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
991 991  
992 992  * AT Command:
... ... @@ -1161,13 +1161,13 @@
1161 1161  
1162 1162  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1163 1163  
1164 -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]]
1165 1165  
1166 1166  * AT Command:
1167 1167  
1168 1168  (% class="box infomessage" %)
1169 1169  (((
1170 -**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]]**
1171 1171  )))
1172 1172  
1173 1173  * Downlink Payload (prefix 0xA5):
... ... @@ -1177,7 +1177,6 @@
1177 1177  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1178 1178  )))
1179 1179  
1180 -
1181 1181  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1182 1182  
1183 1183  * AT Command:
... ... @@ -1202,7 +1202,6 @@
1202 1202  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1203 1203  )))
1204 1204  
1205 -
1206 1206  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1207 1207  
1208 1208  Clear counting for counting mode
... ... @@ -1221,7 +1221,6 @@
1221 1221  **0x A6 01     ~/~/ clear all counting,**
1222 1222  )))
1223 1223  
1224 -
1225 1225  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1226 1226  
1227 1227  * AT Command:
... ... @@ -1240,8 +1240,6 @@
1240 1240  
1241 1241  (((
1242 1242  range: aa bb cc:0 to 16777215,  (unit:second)
1243 -
1244 -
1245 1245  )))
1246 1246  
1247 1247  == 3.5 Integrate with Mydevice ==
... ... @@ -1262,7 +1262,6 @@
1262 1262  
1263 1263  [[image:image-20220524094641-12.png||height="402" width="718"]]
1264 1264  
1265 -
1266 1266  **Step 3**: Create an account or log in Mydevices.
1267 1267  
1268 1268  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1271,7 +1271,6 @@
1271 1271  
1272 1272  [[image:1653356838789-523.png||height="337" width="740"]]
1273 1273  
1274 -
1275 1275  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1276 1276  
1277 1277  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1284,7 +1284,6 @@
1284 1284  
1285 1285  [[image:image-20220524094909-5.png||height="341" width="734"]]
1286 1286  
1287 -
1288 1288  == 3.6 Interface Detail ==
1289 1289  
1290 1290  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1293,7 +1293,6 @@
1293 1293  
1294 1294  [[image:1653356991268-289.png]]
1295 1295  
1296 -
1297 1297  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1298 1298  
1299 1299  (((
... ... @@ -1309,105 +1309,51 @@
1309 1309  [[image:1653357170703-587.png]]
1310 1310  
1311 1311  (((
1312 -(((
1313 1313  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1314 1314  )))
1315 -)))
1316 1316  
1317 -(((
1318 -
1319 -)))
1320 1320  
1321 -(((
1322 1322  **Example1**: Connect to a Low active sensor.
1323 -)))
1324 1324  
1325 -(((
1326 1326  This type of sensor will output a low signal GND when active.
1327 -)))
1328 1328  
1329 -* (((
1330 -Connect sensor’s output to DI1-
1331 -)))
1332 -* (((
1333 -Connect sensor’s VCC to DI1+.
1334 -)))
1265 +* Connect sensor’s output to DI1-
1266 +* Connect sensor’s VCC to DI1+.
1335 1335  
1336 -(((
1337 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1338 -)))
1268 +So when sensor active, the current between NEC2501 pin1 and pin2 is: ​​
1339 1339  
1340 -(((
1341 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1342 -)))
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.**
1343 1343  
1344 -(((
1345 -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.
1346 -)))
1272 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1347 1347  
1348 -(((
1349 -
1350 -)))
1351 1351  
1352 -(((
1353 1353  **Example2**: Connect to a High active sensor.
1354 -)))
1355 1355  
1356 -(((
1357 1357  This type of sensor will output a high signal (example 24v) when active.
1358 -)))
1359 1359  
1360 -* (((
1361 -Connect sensor’s output to DI1+
1362 -)))
1363 -* (((
1364 -Connect sensor’s GND DI1-.
1365 -)))
1279 +* Connect sensor’s output to DI1+
1280 +* Connect sensor’s GND DI1-.
1366 1366  
1367 -(((
1368 1368  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1369 -)))
1370 1370  
1371 -(((
1372 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1373 -)))
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.**
1374 1374  
1375 -(((
1376 -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.
1377 -)))
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.
1378 1378  
1379 -(((
1380 -
1381 -)))
1382 1382  
1383 -(((
1384 1384  **Example3**: Connect to a 220v high active sensor.
1385 -)))
1386 1386  
1387 -(((
1388 1388  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1389 -)))
1390 1390  
1391 -* (((
1392 -Connect sensor’s output to DI1+ with a serial 50K resistor
1393 -)))
1394 -* (((
1395 -Connect sensor’s GND DI1-.
1396 -)))
1293 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1294 +* Connect sensor’s GND DI1-.
1397 1397  
1398 -(((
1399 1399  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1400 -)))
1401 1401  
1402 -(((
1403 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1404 -)))
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.**
1405 1405  
1406 -(((
1407 -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.
1408 -)))
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.
1409 1409  
1410 -
1411 1411  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1412 1412  
1413 1413  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1414,7 +1414,6 @@
1414 1414  
1415 1415  [[image:1653357531600-905.png]]
1416 1416  
1417 -
1418 1418  === 3.6.4 Analog Input Interface ===
1419 1419  
1420 1420  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:
... ... @@ -1442,7 +1442,6 @@
1442 1442  
1443 1443  [[image:1653357648330-671.png||height="155" width="733"]]
1444 1444  
1445 -
1446 1446  === 3.6.5 Relay Output ===
1447 1447  
1448 1448  (((
... ... @@ -1453,12 +1453,10 @@
1453 1453  
1454 1454  [[image:image-20220524100215-10.png||height="382" width="723"]]
1455 1455  
1456 -
1457 1457  == 3.7 LEDs Indicators ==
1458 1458  
1459 1459  [[image:image-20220524100748-11.png]]
1460 1460  
1461 -
1462 1462  = 4. Use AT Command =
1463 1463  
1464 1464  == 4.1 Access AT Command ==
... ... @@ -1659,8 +1659,6 @@
1659 1659  
1660 1660  (((
1661 1661  AT+CFG: Print all settings
1662 -
1663 -
1664 1664  )))
1665 1665  
1666 1666  == 4.2 Common AT Command Sequence ==
... ... @@ -1702,8 +1702,6 @@
1702 1702  
1703 1703  (((
1704 1704  (% style="background-color:#dcdcdc" %)ATZ
1705 -
1706 -
1707 1707  )))
1708 1708  
1709 1709  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1785,7 +1785,6 @@
1785 1785  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1786 1786  ATZ
1787 1787  
1788 -
1789 1789  = 5. FAQ =
1790 1790  
1791 1791  == 5.1 How to upgrade the image? ==
... ... @@ -1816,7 +1816,6 @@
1816 1816  
1817 1817  [[image:1653360054704-518.png||height="186" width="745"]]
1818 1818  
1819 -
1820 1820  (((
1821 1821  (((
1822 1822  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1825,8 +1825,6 @@
1825 1825  
1826 1826  (((
1827 1827  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1828 -
1829 -
1830 1830  )))
1831 1831  
1832 1832  (((
... ... @@ -1880,18 +1880,10 @@
1880 1880  
1881 1881  [[image:1653360498588-932.png||height="485" width="726"]]
1882 1882  
1883 -
1884 1884  == 5.4 Can I see counting event in Serial? ==
1885 1885  
1886 1886  (((
1887 1887  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.
1888 -
1889 -
1890 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1891 -
1892 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1893 -
1894 -
1895 1895  )))
1896 1896  
1897 1897  (((
... ... @@ -1905,8 +1905,10 @@
1905 1905  )))
1906 1906  
1907 1907  (((
1908 -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:
1909 1909  
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 +
1910 1910  
1911 1911  )))
1912 1912  
... ... @@ -1915,7 +1915,9 @@
1915 1915  )))
1916 1916  
1917 1917  (((
1918 -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/]]
1919 1919  )))
1920 1920  
1921 1921  (((
... ... @@ -1927,7 +1927,9 @@
1927 1927  )))
1928 1928  
1929 1929  (((
1930 -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]]
1931 1931  )))
1932 1932  
1933 1933  (((
... ... @@ -2001,8 +2001,6 @@
2001 2001  (((
2002 2002  * (((
2003 2003  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2004 -
2005 -
2006 2006  )))
2007 2007  
2008 2008  = 8. Packing Info =
... ... @@ -2035,8 +2035,6 @@
2035 2035  * Device Weight: 105g
2036 2036  * Package Size / pcs : 14.5 x 8 x 5 cm
2037 2037  * Weight / pcs : 170g
2038 -
2039 -
2040 2040  )))
2041 2041  )))
2042 2042  
... ... @@ -2058,8 +2058,6 @@
2058 2058  (((
2059 2059  (((
2060 2060   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2061 -
2062 -
2063 2063  )))
2064 2064  
2065 2065  (((
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