Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.18 >
edited by Xiaoling
on 2022/06/10 08:40
To version < 68.11 >
edited by Xiaoling
on 2022/05/25 15:12
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Summary

Details

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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;
... ... @@ -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.
... ... @@ -602,12 +602,8 @@
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 -
610 -
611 611  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
612 612  
613 613  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
... ... @@ -634,7 +634,6 @@
634 634  
635 635  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
636 636  
637 -
638 638  (% style="color:#4f81bd" %)**Trigger base on current**:
639 639  
640 640  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -643,7 +643,6 @@
643 643  
644 644  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
645 645  
646 -
647 647  (% style="color:#4f81bd" %)**Trigger base on DI status**:
648 648  
649 649  DI status trigger Flag.
... ... @@ -730,18 +730,12 @@
730 730  
731 731  When device got this command, it will send the MOD6 payload.
732 732  
733 -
734 -
735 735  === 3.3.7 Payload Decoder ===
736 736  
737 737  (((
738 738  **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/]]
739 -
740 -
741 741  )))
742 742  
743 -
744 -
745 745  == 3.4 ​Configure LT via AT or Downlink ==
746 746  
747 747  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -750,18 +750,14 @@
750 750  There are two kinds of Commands:
751 751  )))
752 752  
753 -* (% 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
754 754  
755 755  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
756 756  
757 -
758 -
759 759  === 3.4.1 Common Commands ===
760 760  
761 761  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]]
762 762  
763 -
764 -
765 765  === 3.4.2 Sensor related commands ===
766 766  
767 767  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -784,7 +784,6 @@
784 784  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
785 785  )))
786 786  
787 -
788 788  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
789 789  
790 790  Set work mode.
... ... @@ -805,7 +805,6 @@
805 805  **0x0A aa     ~/~/ Same as AT+MOD=aa**
806 806  )))
807 807  
808 -
809 809  ==== 3.4.2.3 Poll an uplink ====
810 810  
811 811  * AT Command:
... ... @@ -821,10 +821,9 @@
821 821  
822 822  **Example**: 0x08FF, ask device to send an Uplink
823 823  
824 -
825 825  ==== 3.4.2.4 Enable Trigger Mode ====
826 826  
827 -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]]
828 828  
829 829  * AT Command:
830 830  
... ... @@ -844,7 +844,6 @@
844 844  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
845 845  )))
846 846  
847 -
848 848  ==== 3.4.2.5 Poll trigger settings ====
849 849  
850 850  Poll trigger settings,
... ... @@ -860,7 +860,6 @@
860 860  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
861 861  )))
862 862  
863 -
864 864  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
865 865  
866 866  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -883,7 +883,6 @@
883 883  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
884 884  )))
885 885  
886 -
887 887  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
888 888  
889 889  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -910,7 +910,6 @@
910 910  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
911 911  )))
912 912  
913 -
914 914  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
915 915  
916 916  Set DI2 trigger.
... ... @@ -937,10 +937,9 @@
937 937  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
938 938  )))
939 939  
940 -
941 941  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
942 942  
943 -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]]
944 944  
945 945  * AT Command:
946 946  
... ... @@ -953,19 +953,18 @@
953 953  
954 954  (% class="box infomessage" %)
955 955  (((
956 -**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]]**
957 957  )))
958 958  
959 -
960 960  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
961 961  
962 -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]]
963 963  
964 964  * AT Command:
965 965  
966 966  (% class="box infomessage" %)
967 967  (((
968 -**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]]**
969 969  )))
970 970  
971 971  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -972,10 +972,9 @@
972 972  
973 973  (% class="box infomessage" %)
974 974  (((
975 -**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]] **
976 976  )))
977 977  
978 -
979 979  ==== 3.4.2.11 Trigger – Set minimum interval ====
980 980  
981 981  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -994,7 +994,6 @@
994 994  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
995 995  )))
996 996  
997 -
998 998  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
999 999  
1000 1000  * AT Command:
... ... @@ -1169,13 +1169,13 @@
1169 1169  
1170 1170  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1171 1171  
1172 -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]]
1173 1173  
1174 1174  * AT Command:
1175 1175  
1176 1176  (% class="box infomessage" %)
1177 1177  (((
1178 -**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]]**
1179 1179  )))
1180 1180  
1181 1181  * Downlink Payload (prefix 0xA5):
... ... @@ -1185,7 +1185,6 @@
1185 1185  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1186 1186  )))
1187 1187  
1188 -
1189 1189  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1190 1190  
1191 1191  * AT Command:
... ... @@ -1210,7 +1210,6 @@
1210 1210  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1211 1211  )))
1212 1212  
1213 -
1214 1214  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1215 1215  
1216 1216  Clear counting for counting mode
... ... @@ -1229,7 +1229,6 @@
1229 1229  **0x A6 01     ~/~/ clear all counting,**
1230 1230  )))
1231 1231  
1232 -
1233 1233  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1234 1234  
1235 1235  * AT Command:
... ... @@ -1248,8 +1248,6 @@
1248 1248  
1249 1249  (((
1250 1250  range: aa bb cc:0 to 16777215,  (unit:second)
1251 -
1252 -
1253 1253  )))
1254 1254  
1255 1255  == 3.5 Integrate with Mydevice ==
... ... @@ -1270,7 +1270,6 @@
1270 1270  
1271 1271  [[image:image-20220524094641-12.png||height="402" width="718"]]
1272 1272  
1273 -
1274 1274  **Step 3**: Create an account or log in Mydevices.
1275 1275  
1276 1276  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1279,7 +1279,6 @@
1279 1279  
1280 1280  [[image:1653356838789-523.png||height="337" width="740"]]
1281 1281  
1282 -
1283 1283  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1284 1284  
1285 1285  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1292,7 +1292,6 @@
1292 1292  
1293 1293  [[image:image-20220524094909-5.png||height="341" width="734"]]
1294 1294  
1295 -
1296 1296  == 3.6 Interface Detail ==
1297 1297  
1298 1298  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1301,7 +1301,6 @@
1301 1301  
1302 1302  [[image:1653356991268-289.png]]
1303 1303  
1304 -
1305 1305  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1306 1306  
1307 1307  (((
... ... @@ -1317,105 +1317,51 @@
1317 1317  [[image:1653357170703-587.png]]
1318 1318  
1319 1319  (((
1320 -(((
1321 1321  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1322 1322  )))
1323 -)))
1324 1324  
1325 -(((
1326 -
1327 -)))
1328 1328  
1329 -(((
1330 1330  **Example1**: Connect to a Low active sensor.
1331 -)))
1332 1332  
1333 -(((
1334 1334  This type of sensor will output a low signal GND when active.
1335 -)))
1336 1336  
1337 -* (((
1338 -Connect sensor’s output to DI1-
1339 -)))
1340 -* (((
1341 -Connect sensor’s VCC to DI1+.
1342 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1343 1343  
1344 -(((
1345 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1346 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1347 1347  
1348 -(((
1349 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1350 -)))
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:/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:/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:/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:/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:/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:/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.**
1351 1351  
1352 -(((
1353 -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.
1354 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1355 1355  
1356 -(((
1357 -
1358 -)))
1359 1359  
1360 -(((
1361 1361  **Example2**: Connect to a High active sensor.
1362 -)))
1363 1363  
1364 -(((
1365 1365  This type of sensor will output a high signal (example 24v) when active.
1366 -)))
1367 1367  
1368 -* (((
1369 -Connect sensor’s output to DI1+
1370 -)))
1371 -* (((
1372 -Connect sensor’s GND DI1-.
1373 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1374 1374  
1375 -(((
1376 1376  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1377 -)))
1378 1378  
1379 -(((
1380 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1381 -)))
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:/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:/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:/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:/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:/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:/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.**
1382 1382  
1383 -(((
1384 -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.
1385 -)))
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:/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:/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:/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:/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:/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:/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.
1386 1386  
1387 -(((
1388 -
1389 -)))
1390 1390  
1391 -(((
1392 1392  **Example3**: Connect to a 220v high active sensor.
1393 -)))
1394 1394  
1395 -(((
1396 1396  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1397 -)))
1398 1398  
1399 -* (((
1400 -Connect sensor’s output to DI1+ with a serial 50K resistor
1401 -)))
1402 -* (((
1403 -Connect sensor’s GND DI1-.
1404 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1405 1405  
1406 -(((
1407 1407  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1408 -)))
1409 1409  
1410 -(((
1411 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1412 -)))
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:/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:/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:/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:/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:/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:/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.**
1413 1413  
1414 -(((
1415 -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.
1416 -)))
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.
1417 1417  
1418 -
1419 1419  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1420 1420  
1421 1421  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1422,7 +1422,6 @@
1422 1422  
1423 1423  [[image:1653357531600-905.png]]
1424 1424  
1425 -
1426 1426  === 3.6.4 Analog Input Interface ===
1427 1427  
1428 1428  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:
... ... @@ -1450,7 +1450,6 @@
1450 1450  
1451 1451  [[image:1653357648330-671.png||height="155" width="733"]]
1452 1452  
1453 -
1454 1454  === 3.6.5 Relay Output ===
1455 1455  
1456 1456  (((
... ... @@ -1461,12 +1461,10 @@
1461 1461  
1462 1462  [[image:image-20220524100215-10.png||height="382" width="723"]]
1463 1463  
1464 -
1465 1465  == 3.7 LEDs Indicators ==
1466 1466  
1467 1467  [[image:image-20220524100748-11.png]]
1468 1468  
1469 -
1470 1470  = 4. Use AT Command =
1471 1471  
1472 1472  == 4.1 Access AT Command ==
... ... @@ -1667,8 +1667,6 @@
1667 1667  
1668 1668  (((
1669 1669  AT+CFG: Print all settings
1670 -
1671 -
1672 1672  )))
1673 1673  
1674 1674  == 4.2 Common AT Command Sequence ==
... ... @@ -1710,8 +1710,6 @@
1710 1710  
1711 1711  (((
1712 1712  (% style="background-color:#dcdcdc" %)ATZ
1713 -
1714 -
1715 1715  )))
1716 1716  
1717 1717  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1793,7 +1793,6 @@
1793 1793  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1794 1794  ATZ
1795 1795  
1796 -
1797 1797  = 5. FAQ =
1798 1798  
1799 1799  == 5.1 How to upgrade the image? ==
... ... @@ -1824,7 +1824,6 @@
1824 1824  
1825 1825  [[image:1653360054704-518.png||height="186" width="745"]]
1826 1826  
1827 -
1828 1828  (((
1829 1829  (((
1830 1830  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1833,8 +1833,6 @@
1833 1833  
1834 1834  (((
1835 1835  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1836 -
1837 -
1838 1838  )))
1839 1839  
1840 1840  (((
... ... @@ -1888,18 +1888,10 @@
1888 1888  
1889 1889  [[image:1653360498588-932.png||height="485" width="726"]]
1890 1890  
1891 -
1892 1892  == 5.4 Can I see counting event in Serial? ==
1893 1893  
1894 1894  (((
1895 1895  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.
1896 -
1897 -
1898 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1899 -
1900 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1901 -
1902 -
1903 1903  )))
1904 1904  
1905 1905  (((
... ... @@ -1913,8 +1913,11 @@
1913 1913  )))
1914 1914  
1915 1915  (((
1916 -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: [[How it work>>doc:Main.LoRaWAN Communication Debug.H5.1Howitwork]]
1917 1917  
1766 +
1767 +[[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]]
1768 +
1918 1918  
1919 1919  )))
1920 1920  
... ... @@ -1923,7 +1923,9 @@
1923 1923  )))
1924 1924  
1925 1925  (((
1926 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1777 +See this link for trouble shooting:
1778 +
1779 +[[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/]]
1927 1927  )))
1928 1928  
1929 1929  (((
... ... @@ -1935,7 +1935,9 @@
1935 1935  )))
1936 1936  
1937 1937  (((
1938 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1791 +It might be about the channels mapping. Please see this link for detail:
1792 +
1793 +[[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]]
1939 1939  )))
1940 1940  
1941 1941  (((
... ... @@ -2009,8 +2009,6 @@
2009 2009  (((
2010 2010  * (((
2011 2011  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2012 -
2013 -
2014 2014  )))
2015 2015  
2016 2016  = 8. Packing Info =
... ... @@ -2043,8 +2043,6 @@
2043 2043  * Device Weight: 105g
2044 2044  * Package Size / pcs : 14.5 x 8 x 5 cm
2045 2045  * Weight / pcs : 170g
2046 -
2047 -
2048 2048  )))
2049 2049  )))
2050 2050  
... ... @@ -2066,8 +2066,6 @@
2066 2066  (((
2067 2067  (((
2068 2068   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2069 -
2070 -
2071 2071  )))
2072 2072  
2073 2073  (((
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