<
From version < 77.11 >
edited by Xiaoling
on 2022/06/10 08:39
To version < 68.16 >
edited by Xiaoling
on 2022/05/25 15:20
>
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  (((
... ... @@ -44,15 +44,11 @@
44 44  
45 45  (((
46 46  [[image:1653295757274-912.png]]
47 -
48 -
49 49  )))
50 50  
51 51  == 1.2  Specifications ==
52 52  
53 53  (((
54 -
55 -
56 56  **Hardware System:**
57 57  )))
58 58  
... ... @@ -75,7 +75,6 @@
75 75  )))
76 76  )))
77 77  
78 -
79 79  (((
80 80  **Interface for Model: LT22222-L:**
81 81  )))
... ... @@ -99,7 +99,6 @@
99 99  Power Input 7~~ 24V DC. 
100 100  )))
101 101  
102 -
103 103  (((
104 104  **LoRa Spec:**
105 105  )))
... ... @@ -160,12 +160,8 @@
160 160  )))
161 161  * (((
162 162  Packet engine up to 256 bytes with CRC.
163 -
164 -
165 165  )))
166 166  
167 -
168 -
169 169  == 1.3 Features ==
170 170  
171 171  * LoRaWAN Class A & Class C protocol
... ... @@ -176,8 +176,6 @@
176 176  * Firmware upgradable via program port
177 177  * Counting
178 178  
179 -
180 -
181 181  == 1.4  Applications ==
182 182  
183 183  * Smart Buildings & Home Automation
... ... @@ -187,8 +187,6 @@
187 187  * Smart Cities
188 188  * Smart Factory
189 189  
190 -
191 -
192 192  == 1.5 Hardware Variants ==
193 193  
194 194  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -202,8 +202,6 @@
202 202  * 1 x Counting Port
203 203  )))
204 204  
205 -
206 -
207 207  = 2. Power ON Device =
208 208  
209 209  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
... ... @@ -214,8 +214,6 @@
214 214  
215 215  [[image:1653297104069-180.png]]
216 216  
217 -
218 -
219 219  = 3. Operation Mode =
220 220  
221 221  == 3.1 How it works? ==
... ... @@ -226,12 +226,8 @@
226 226  
227 227  (((
228 228  In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
229 -
230 -
231 231  )))
232 232  
233 -
234 -
235 235  == 3.2 Example to join LoRaWAN network ==
236 236  
237 237  (((
... ... @@ -260,12 +260,10 @@
260 260  
261 261  [[image:1653297955910-247.png||height="321" width="716"]]
262 262  
263 -
264 264  Add APP KEY and DEV EUI
265 265  
266 266  [[image:1653298023685-319.png]]
267 267  
268 -
269 269  (((
270 270  **Step 2**: Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
271 271  )))
... ... @@ -272,8 +272,6 @@
272 272  
273 273  [[image:1653298044601-602.png||height="405" width="709"]]
274 274  
275 -
276 -
277 277  == 3.3 Uplink Payload ==
278 278  
279 279  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -285,8 +285,6 @@
285 285  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
286 286  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
287 287  
288 -
289 -
290 290  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
291 291  
292 292  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -322,7 +322,6 @@
322 322  * [1] RO1 relay channel is close and the RO1 LED is ON.
323 323  * [0] RO2 relay channel is open and RO2 LED is OFF;
324 324  
325 -
326 326  **LT22222-L:**
327 327  
328 328  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -430,7 +430,6 @@
430 430  )))
431 431  )))
432 432  
433 -
434 434  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
435 435  
436 436  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -471,8 +471,6 @@
471 471  
472 472  (((
473 473  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
474 -
475 -
476 476  )))
477 477  
478 478  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
... ... @@ -555,7 +555,6 @@
555 555  )))
556 556  )))
557 557  
558 -
559 559  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
560 560  
561 561  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -596,8 +596,6 @@
596 596  
597 597  (((
598 598  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
599 -
600 -
601 601  )))
602 602  
603 603  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -626,7 +626,6 @@
626 626  
627 627  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
628 628  
629 -
630 630  (% style="color:#4f81bd" %)**Trigger base on current**:
631 631  
632 632  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -635,7 +635,6 @@
635 635  
636 636  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
637 637  
638 -
639 639  (% style="color:#4f81bd" %)**Trigger base on DI status**:
640 640  
641 641  DI status trigger Flag.
... ... @@ -722,13 +722,10 @@
722 722  
723 723  When device got this command, it will send the MOD6 payload.
724 724  
725 -
726 726  === 3.3.7 Payload Decoder ===
727 727  
728 728  (((
729 729  **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/]]
730 -
731 -
732 732  )))
733 733  
734 734  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -739,7 +739,7 @@
739 739  There are two kinds of Commands:
740 740  )))
741 741  
742 -* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
699 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
743 743  
744 744  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
745 745  
... ... @@ -747,7 +747,6 @@
747 747  
748 748  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]]
749 749  
750 -
751 751  === 3.4.2 Sensor related commands ===
752 752  
753 753  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -770,7 +770,6 @@
770 770  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
771 771  )))
772 772  
773 -
774 774  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
775 775  
776 776  Set work mode.
... ... @@ -791,7 +791,6 @@
791 791  **0x0A aa     ~/~/ Same as AT+MOD=aa**
792 792  )))
793 793  
794 -
795 795  ==== 3.4.2.3 Poll an uplink ====
796 796  
797 797  * AT Command:
... ... @@ -807,10 +807,9 @@
807 807  
808 808  **Example**: 0x08FF, ask device to send an Uplink
809 809  
810 -
811 811  ==== 3.4.2.4 Enable Trigger Mode ====
812 812  
813 -Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
766 +Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
814 814  
815 815  * AT Command:
816 816  
... ... @@ -830,7 +830,6 @@
830 830  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
831 831  )))
832 832  
833 -
834 834  ==== 3.4.2.5 Poll trigger settings ====
835 835  
836 836  Poll trigger settings,
... ... @@ -846,7 +846,6 @@
846 846  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
847 847  )))
848 848  
849 -
850 850  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
851 851  
852 852  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -869,7 +869,6 @@
869 869  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
870 870  )))
871 871  
872 -
873 873  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
874 874  
875 875  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -896,7 +896,6 @@
896 896  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
897 897  )))
898 898  
899 -
900 900  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
901 901  
902 902  Set DI2 trigger.
... ... @@ -923,10 +923,9 @@
923 923  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
924 924  )))
925 925  
926 -
927 927  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
928 928  
929 -Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
877 +Set current trigger , base on AC port. See [[trigger mode>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
930 930  
931 931  * AT Command:
932 932  
... ... @@ -939,19 +939,18 @@
939 939  
940 940  (% class="box infomessage" %)
941 941  (((
942 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
890 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
943 943  )))
944 944  
945 -
946 946  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
947 947  
948 -Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
895 +Set current trigger , base on AV port. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
949 949  
950 950  * AT Command:
951 951  
952 952  (% class="box infomessage" %)
953 953  (((
954 -**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
901 +**AT+AVLIM. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
955 955  )))
956 956  
957 957  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -958,10 +958,9 @@
958 958  
959 959  (% class="box infomessage" %)
960 960  (((
961 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
908 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] **
962 962  )))
963 963  
964 -
965 965  ==== 3.4.2.11 Trigger – Set minimum interval ====
966 966  
967 967  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -980,7 +980,6 @@
980 980  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
981 981  )))
982 982  
983 -
984 984  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
985 985  
986 986  * AT Command:
... ... @@ -1155,13 +1155,13 @@
1155 1155  
1156 1156  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1157 1157  
1158 -When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1103 +When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
1159 1159  
1160 1160  * AT Command:
1161 1161  
1162 1162  (% class="box infomessage" %)
1163 1163  (((
1164 -**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1109 +**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
1165 1165  )))
1166 1166  
1167 1167  * Downlink Payload (prefix 0xA5):
... ... @@ -1171,7 +1171,6 @@
1171 1171  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1172 1172  )))
1173 1173  
1174 -
1175 1175  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1176 1176  
1177 1177  * AT Command:
... ... @@ -1196,7 +1196,6 @@
1196 1196  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1197 1197  )))
1198 1198  
1199 -
1200 1200  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1201 1201  
1202 1202  Clear counting for counting mode
... ... @@ -1215,7 +1215,6 @@
1215 1215  **0x A6 01     ~/~/ clear all counting,**
1216 1216  )))
1217 1217  
1218 -
1219 1219  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1220 1220  
1221 1221  * AT Command:
... ... @@ -1234,8 +1234,6 @@
1234 1234  
1235 1235  (((
1236 1236  range: aa bb cc:0 to 16777215,  (unit:second)
1237 -
1238 -
1239 1239  )))
1240 1240  
1241 1241  == 3.5 Integrate with Mydevice ==
... ... @@ -1256,7 +1256,6 @@
1256 1256  
1257 1257  [[image:image-20220524094641-12.png||height="402" width="718"]]
1258 1258  
1259 -
1260 1260  **Step 3**: Create an account or log in Mydevices.
1261 1261  
1262 1262  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1265,7 +1265,6 @@
1265 1265  
1266 1266  [[image:1653356838789-523.png||height="337" width="740"]]
1267 1267  
1268 -
1269 1269  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1270 1270  
1271 1271  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1278,7 +1278,6 @@
1278 1278  
1279 1279  [[image:image-20220524094909-5.png||height="341" width="734"]]
1280 1280  
1281 -
1282 1282  == 3.6 Interface Detail ==
1283 1283  
1284 1284  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1287,7 +1287,6 @@
1287 1287  
1288 1288  [[image:1653356991268-289.png]]
1289 1289  
1290 -
1291 1291  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1292 1292  
1293 1293  (((
... ... @@ -1303,105 +1303,51 @@
1303 1303  [[image:1653357170703-587.png]]
1304 1304  
1305 1305  (((
1306 -(((
1307 1307  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1308 1308  )))
1309 -)))
1310 1310  
1311 -(((
1312 -
1313 -)))
1314 1314  
1315 -(((
1316 1316  **Example1**: Connect to a Low active sensor.
1317 -)))
1318 1318  
1319 -(((
1320 1320  This type of sensor will output a low signal GND when active.
1321 -)))
1322 1322  
1323 -* (((
1324 -Connect sensor’s output to DI1-
1325 -)))
1326 -* (((
1327 -Connect sensor’s VCC to DI1+.
1328 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1329 1329  
1330 -(((
1331 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1332 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is: ​​
1333 1333  
1334 -(((
1335 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1336 -)))
1255 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]] = DI1+ / 1K.**
1337 1337  
1338 -(((
1339 -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.
1340 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1341 1341  
1342 -(((
1343 -
1344 -)))
1345 1345  
1346 -(((
1347 1347  **Example2**: Connect to a High active sensor.
1348 -)))
1349 1349  
1350 -(((
1351 1351  This type of sensor will output a high signal (example 24v) when active.
1352 -)))
1353 1353  
1354 -* (((
1355 -Connect sensor’s output to DI1+
1356 -)))
1357 -* (((
1358 -Connect sensor’s GND DI1-.
1359 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1360 1360  
1361 -(((
1362 1362  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1363 -)))
1364 1364  
1365 -(((
1366 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1367 -)))
1269 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1368 1368  
1369 -(((
1370 -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.
1371 -)))
1271 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1372 1372  
1373 -(((
1374 -
1375 -)))
1376 1376  
1377 -(((
1378 1378  **Example3**: Connect to a 220v high active sensor.
1379 -)))
1380 1380  
1381 -(((
1382 1382  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1383 -)))
1384 1384  
1385 -* (((
1386 -Connect sensor’s output to DI1+ with a serial 50K resistor
1387 -)))
1388 -* (((
1389 -Connect sensor’s GND DI1-.
1390 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1391 1391  
1392 -(((
1393 1393  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1394 -)))
1395 1395  
1396 -(((
1397 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1398 -)))
1283 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1399 1399  
1400 -(((
1401 -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.
1402 -)))
1285 +If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1403 1403  
1404 -
1405 1405  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1406 1406  
1407 1407  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1408,7 +1408,6 @@
1408 1408  
1409 1409  [[image:1653357531600-905.png]]
1410 1410  
1411 -
1412 1412  === 3.6.4 Analog Input Interface ===
1413 1413  
1414 1414  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:
... ... @@ -1436,7 +1436,6 @@
1436 1436  
1437 1437  [[image:1653357648330-671.png||height="155" width="733"]]
1438 1438  
1439 -
1440 1440  === 3.6.5 Relay Output ===
1441 1441  
1442 1442  (((
... ... @@ -1447,12 +1447,10 @@
1447 1447  
1448 1448  [[image:image-20220524100215-10.png||height="382" width="723"]]
1449 1449  
1450 -
1451 1451  == 3.7 LEDs Indicators ==
1452 1452  
1453 1453  [[image:image-20220524100748-11.png]]
1454 1454  
1455 -
1456 1456  = 4. Use AT Command =
1457 1457  
1458 1458  == 4.1 Access AT Command ==
... ... @@ -1653,8 +1653,6 @@
1653 1653  
1654 1654  (((
1655 1655  AT+CFG: Print all settings
1656 -
1657 -
1658 1658  )))
1659 1659  
1660 1660  == 4.2 Common AT Command Sequence ==
... ... @@ -1696,8 +1696,6 @@
1696 1696  
1697 1697  (((
1698 1698  (% style="background-color:#dcdcdc" %)ATZ
1699 -
1700 -
1701 1701  )))
1702 1702  
1703 1703  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1779,7 +1779,6 @@
1779 1779  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1780 1780  ATZ
1781 1781  
1782 -
1783 1783  = 5. FAQ =
1784 1784  
1785 1785  == 5.1 How to upgrade the image? ==
... ... @@ -1810,7 +1810,6 @@
1810 1810  
1811 1811  [[image:1653360054704-518.png||height="186" width="745"]]
1812 1812  
1813 -
1814 1814  (((
1815 1815  (((
1816 1816  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1819,8 +1819,6 @@
1819 1819  
1820 1820  (((
1821 1821  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1822 -
1823 -
1824 1824  )))
1825 1825  
1826 1826  (((
... ... @@ -1874,18 +1874,10 @@
1874 1874  
1875 1875  [[image:1653360498588-932.png||height="485" width="726"]]
1876 1876  
1877 -
1878 1878  == 5.4 Can I see counting event in Serial? ==
1879 1879  
1880 1880  (((
1881 1881  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.
1882 -
1883 -
1884 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1885 -
1886 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1887 -
1888 -
1889 1889  )))
1890 1890  
1891 1891  (((
... ... @@ -1899,8 +1899,10 @@
1899 1899  )))
1900 1900  
1901 1901  (((
1902 -Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1764 +Please see this link for how to debug:
1903 1903  
1766 +[[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]]
1767 +
1904 1904  
1905 1905  )))
1906 1906  
... ... @@ -1909,7 +1909,9 @@
1909 1909  )))
1910 1910  
1911 1911  (((
1912 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1776 +See this link for trouble shooting:
1777 +
1778 +[[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/]]
1913 1913  )))
1914 1914  
1915 1915  (((
... ... @@ -1921,7 +1921,9 @@
1921 1921  )))
1922 1922  
1923 1923  (((
1924 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1790 +It might be about the channels mapping. Please see this link for detail:
1791 +
1792 +[[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]]
1925 1925  )))
1926 1926  
1927 1927  (((
... ... @@ -1995,8 +1995,6 @@
1995 1995  (((
1996 1996  * (((
1997 1997  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1998 -
1999 -
2000 2000  )))
2001 2001  
2002 2002  = 8. Packing Info =
... ... @@ -2029,8 +2029,6 @@
2029 2029  * Device Weight: 105g
2030 2030  * Package Size / pcs : 14.5 x 8 x 5 cm
2031 2031  * Weight / pcs : 170g
2032 -
2033 -
2034 2034  )))
2035 2035  )))
2036 2036  
... ... @@ -2052,8 +2052,6 @@
2052 2052  (((
2053 2053  (((
2054 2054   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2055 -
2056 -
2057 2057  )))
2058 2058  
2059 2059  (((
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