Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.14 >
edited by Xiaoling
on 2022/06/10 08:39
To version < 68.14 >
edited by Xiaoling
on 2022/05/25 15:16
>
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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;
... ... @@ -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.
... ... @@ -560,7 +560,6 @@
560 560  )))
561 561  )))
562 562  
563 -
564 564  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
565 565  
566 566  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -601,8 +601,6 @@
601 601  
602 602  (((
603 603  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
604 -
605 -
606 606  )))
607 607  
608 608  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -631,7 +631,6 @@
631 631  
632 632  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
633 633  
634 -
635 635  (% style="color:#4f81bd" %)**Trigger base on current**:
636 636  
637 637  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -640,7 +640,6 @@
640 640  
641 641  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
642 642  
643 -
644 644  (% style="color:#4f81bd" %)**Trigger base on DI status**:
645 645  
646 646  DI status trigger Flag.
... ... @@ -727,13 +727,10 @@
727 727  
728 728  When device got this command, it will send the MOD6 payload.
729 729  
730 -
731 731  === 3.3.7 Payload Decoder ===
732 732  
733 733  (((
734 734  **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/]]
735 -
736 -
737 737  )))
738 738  
739 739  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -744,7 +744,7 @@
744 744  There are two kinds of Commands:
745 745  )))
746 746  
747 -* (% 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
748 748  
749 749  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
750 750  
... ... @@ -752,7 +752,6 @@
752 752  
753 753  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]]
754 754  
755 -
756 756  === 3.4.2 Sensor related commands ===
757 757  
758 758  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -775,7 +775,6 @@
775 775  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
776 776  )))
777 777  
778 -
779 779  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
780 780  
781 781  Set work mode.
... ... @@ -796,7 +796,6 @@
796 796  **0x0A aa     ~/~/ Same as AT+MOD=aa**
797 797  )))
798 798  
799 -
800 800  ==== 3.4.2.3 Poll an uplink ====
801 801  
802 802  * AT Command:
... ... @@ -812,10 +812,9 @@
812 812  
813 813  **Example**: 0x08FF, ask device to send an Uplink
814 814  
815 -
816 816  ==== 3.4.2.4 Enable Trigger Mode ====
817 817  
818 -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]]
819 819  
820 820  * AT Command:
821 821  
... ... @@ -835,7 +835,6 @@
835 835  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
836 836  )))
837 837  
838 -
839 839  ==== 3.4.2.5 Poll trigger settings ====
840 840  
841 841  Poll trigger settings,
... ... @@ -851,7 +851,6 @@
851 851  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
852 852  )))
853 853  
854 -
855 855  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
856 856  
857 857  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -874,7 +874,6 @@
874 874  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
875 875  )))
876 876  
877 -
878 878  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
879 879  
880 880  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -901,7 +901,6 @@
901 901  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
902 902  )))
903 903  
904 -
905 905  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
906 906  
907 907  Set DI2 trigger.
... ... @@ -928,10 +928,9 @@
928 928  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
929 929  )))
930 930  
931 -
932 932  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
933 933  
934 -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]]
935 935  
936 936  * AT Command:
937 937  
... ... @@ -944,19 +944,18 @@
944 944  
945 945  (% class="box infomessage" %)
946 946  (((
947 -**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]]**
948 948  )))
949 949  
950 -
951 951  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
952 952  
953 -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]]
954 954  
955 955  * AT Command:
956 956  
957 957  (% class="box infomessage" %)
958 958  (((
959 -**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]]**
960 960  )))
961 961  
962 962  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -963,10 +963,9 @@
963 963  
964 964  (% class="box infomessage" %)
965 965  (((
966 -**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]] **
967 967  )))
968 968  
969 -
970 970  ==== 3.4.2.11 Trigger – Set minimum interval ====
971 971  
972 972  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -985,7 +985,6 @@
985 985  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
986 986  )))
987 987  
988 -
989 989  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
990 990  
991 991  * AT Command:
... ... @@ -1160,13 +1160,13 @@
1160 1160  
1161 1161  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1162 1162  
1163 -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]]
1164 1164  
1165 1165  * AT Command:
1166 1166  
1167 1167  (% class="box infomessage" %)
1168 1168  (((
1169 -**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]]**
1170 1170  )))
1171 1171  
1172 1172  * Downlink Payload (prefix 0xA5):
... ... @@ -1176,7 +1176,6 @@
1176 1176  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1177 1177  )))
1178 1178  
1179 -
1180 1180  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1181 1181  
1182 1182  * AT Command:
... ... @@ -1201,7 +1201,6 @@
1201 1201  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1202 1202  )))
1203 1203  
1204 -
1205 1205  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1206 1206  
1207 1207  Clear counting for counting mode
... ... @@ -1220,7 +1220,6 @@
1220 1220  **0x A6 01     ~/~/ clear all counting,**
1221 1221  )))
1222 1222  
1223 -
1224 1224  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1225 1225  
1226 1226  * AT Command:
... ... @@ -1239,8 +1239,6 @@
1239 1239  
1240 1240  (((
1241 1241  range: aa bb cc:0 to 16777215,  (unit:second)
1242 -
1243 -
1244 1244  )))
1245 1245  
1246 1246  == 3.5 Integrate with Mydevice ==
... ... @@ -1261,7 +1261,6 @@
1261 1261  
1262 1262  [[image:image-20220524094641-12.png||height="402" width="718"]]
1263 1263  
1264 -
1265 1265  **Step 3**: Create an account or log in Mydevices.
1266 1266  
1267 1267  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1270,7 +1270,6 @@
1270 1270  
1271 1271  [[image:1653356838789-523.png||height="337" width="740"]]
1272 1272  
1273 -
1274 1274  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1275 1275  
1276 1276  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1283,7 +1283,6 @@
1283 1283  
1284 1284  [[image:image-20220524094909-5.png||height="341" width="734"]]
1285 1285  
1286 -
1287 1287  == 3.6 Interface Detail ==
1288 1288  
1289 1289  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1292,7 +1292,6 @@
1292 1292  
1293 1293  [[image:1653356991268-289.png]]
1294 1294  
1295 -
1296 1296  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1297 1297  
1298 1298  (((
... ... @@ -1308,105 +1308,51 @@
1308 1308  [[image:1653357170703-587.png]]
1309 1309  
1310 1310  (((
1311 -(((
1312 1312  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1313 1313  )))
1314 -)))
1315 1315  
1316 -(((
1317 -
1318 -)))
1319 1319  
1320 -(((
1321 1321  **Example1**: Connect to a Low active sensor.
1322 -)))
1323 1323  
1324 -(((
1325 1325  This type of sensor will output a low signal GND when active.
1326 -)))
1327 1327  
1328 -* (((
1329 -Connect sensor’s output to DI1-
1330 -)))
1331 -* (((
1332 -Connect sensor’s VCC to DI1+.
1333 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1334 1334  
1335 -(((
1336 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1337 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1338 1338  
1339 -(((
1340 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1341 -)))
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:/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.**
1342 1342  
1343 -(((
1344 -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.
1345 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1346 1346  
1347 -(((
1348 -
1349 -)))
1350 1350  
1351 -(((
1352 1352  **Example2**: Connect to a High active sensor.
1353 -)))
1354 1354  
1355 -(((
1356 1356  This type of sensor will output a high signal (example 24v) when active.
1357 -)))
1358 1358  
1359 -* (((
1360 -Connect sensor’s output to DI1+
1361 -)))
1362 -* (((
1363 -Connect sensor’s GND DI1-.
1364 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1365 1365  
1366 -(((
1367 1367  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1368 -)))
1369 1369  
1370 -(((
1371 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1372 -)))
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:/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.**
1373 1373  
1374 -(((
1375 -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.
1376 -)))
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:/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.
1377 1377  
1378 -(((
1379 -
1380 -)))
1381 1381  
1382 -(((
1383 1383  **Example3**: Connect to a 220v high active sensor.
1384 -)))
1385 1385  
1386 -(((
1387 1387  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1388 -)))
1389 1389  
1390 -* (((
1391 -Connect sensor’s output to DI1+ with a serial 50K resistor
1392 -)))
1393 -* (((
1394 -Connect sensor’s GND DI1-.
1395 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1396 1396  
1397 -(((
1398 1398  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1399 -)))
1400 1400  
1401 -(((
1402 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1403 -)))
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:/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.**
1404 1404  
1405 -(((
1406 -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.
1407 -)))
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.
1408 1408  
1409 -
1410 1410  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1411 1411  
1412 1412  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1413,7 +1413,6 @@
1413 1413  
1414 1414  [[image:1653357531600-905.png]]
1415 1415  
1416 -
1417 1417  === 3.6.4 Analog Input Interface ===
1418 1418  
1419 1419  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:
... ... @@ -1441,7 +1441,6 @@
1441 1441  
1442 1442  [[image:1653357648330-671.png||height="155" width="733"]]
1443 1443  
1444 -
1445 1445  === 3.6.5 Relay Output ===
1446 1446  
1447 1447  (((
... ... @@ -1452,12 +1452,10 @@
1452 1452  
1453 1453  [[image:image-20220524100215-10.png||height="382" width="723"]]
1454 1454  
1455 -
1456 1456  == 3.7 LEDs Indicators ==
1457 1457  
1458 1458  [[image:image-20220524100748-11.png]]
1459 1459  
1460 -
1461 1461  = 4. Use AT Command =
1462 1462  
1463 1463  == 4.1 Access AT Command ==
... ... @@ -1658,8 +1658,6 @@
1658 1658  
1659 1659  (((
1660 1660  AT+CFG: Print all settings
1661 -
1662 -
1663 1663  )))
1664 1664  
1665 1665  == 4.2 Common AT Command Sequence ==
... ... @@ -1701,8 +1701,6 @@
1701 1701  
1702 1702  (((
1703 1703  (% style="background-color:#dcdcdc" %)ATZ
1704 -
1705 -
1706 1706  )))
1707 1707  
1708 1708  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1784,7 +1784,6 @@
1784 1784  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1785 1785  ATZ
1786 1786  
1787 -
1788 1788  = 5. FAQ =
1789 1789  
1790 1790  == 5.1 How to upgrade the image? ==
... ... @@ -1815,7 +1815,6 @@
1815 1815  
1816 1816  [[image:1653360054704-518.png||height="186" width="745"]]
1817 1817  
1818 -
1819 1819  (((
1820 1820  (((
1821 1821  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1824,8 +1824,6 @@
1824 1824  
1825 1825  (((
1826 1826  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1827 -
1828 -
1829 1829  )))
1830 1830  
1831 1831  (((
... ... @@ -1879,18 +1879,10 @@
1879 1879  
1880 1880  [[image:1653360498588-932.png||height="485" width="726"]]
1881 1881  
1882 -
1883 1883  == 5.4 Can I see counting event in Serial? ==
1884 1884  
1885 1885  (((
1886 1886  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.
1887 -
1888 -
1889 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1890 -
1891 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1892 -
1893 -
1894 1894  )))
1895 1895  
1896 1896  (((
... ... @@ -1904,8 +1904,10 @@
1904 1904  )))
1905 1905  
1906 1906  (((
1907 -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:
1908 1908  
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 +
1909 1909  
1910 1910  )))
1911 1911  
... ... @@ -1914,7 +1914,9 @@
1914 1914  )))
1915 1915  
1916 1916  (((
1917 -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/]]
1918 1918  )))
1919 1919  
1920 1920  (((
... ... @@ -1926,7 +1926,9 @@
1926 1926  )))
1927 1927  
1928 1928  (((
1929 -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]]
1930 1930  )))
1931 1931  
1932 1932  (((
... ... @@ -2000,8 +2000,6 @@
2000 2000  (((
2001 2001  * (((
2002 2002  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2003 -
2004 -
2005 2005  )))
2006 2006  
2007 2007  = 8. Packing Info =
... ... @@ -2034,8 +2034,6 @@
2034 2034  * Device Weight: 105g
2035 2035  * Package Size / pcs : 14.5 x 8 x 5 cm
2036 2036  * Weight / pcs : 170g
2037 -
2038 -
2039 2039  )))
2040 2040  )))
2041 2041  
... ... @@ -2057,8 +2057,6 @@
2057 2057  (((
2058 2058  (((
2059 2059   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2060 -
2061 -
2062 2062  )))
2063 2063  
2064 2064  (((
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