Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.17 >
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

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.
... ... @@ -560,8 +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.
... ... @@ -730,14 +730,10 @@
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  
743 743  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -748,7 +748,7 @@
748 748  There are two kinds of Commands:
749 749  )))
750 750  
751 -* (% 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
752 752  
753 753  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
754 754  
... ... @@ -756,7 +756,6 @@
756 756  
757 757  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]]
758 758  
759 -
760 760  === 3.4.2 Sensor related commands ===
761 761  
762 762  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -779,7 +779,6 @@
779 779  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
780 780  )))
781 781  
782 -
783 783  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
784 784  
785 785  Set work mode.
... ... @@ -800,7 +800,6 @@
800 800  **0x0A aa     ~/~/ Same as AT+MOD=aa**
801 801  )))
802 802  
803 -
804 804  ==== 3.4.2.3 Poll an uplink ====
805 805  
806 806  * AT Command:
... ... @@ -816,10 +816,9 @@
816 816  
817 817  **Example**: 0x08FF, ask device to send an Uplink
818 818  
819 -
820 820  ==== 3.4.2.4 Enable Trigger Mode ====
821 821  
822 -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]]
823 823  
824 824  * AT Command:
825 825  
... ... @@ -839,7 +839,6 @@
839 839  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
840 840  )))
841 841  
842 -
843 843  ==== 3.4.2.5 Poll trigger settings ====
844 844  
845 845  Poll trigger settings,
... ... @@ -855,7 +855,6 @@
855 855  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
856 856  )))
857 857  
858 -
859 859  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
860 860  
861 861  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -878,7 +878,6 @@
878 878  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
879 879  )))
880 880  
881 -
882 882  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
883 883  
884 884  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -905,7 +905,6 @@
905 905  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
906 906  )))
907 907  
908 -
909 909  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
910 910  
911 911  Set DI2 trigger.
... ... @@ -932,10 +932,9 @@
932 932  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
933 933  )))
934 934  
935 -
936 936  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
937 937  
938 -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]]
939 939  
940 940  * AT Command:
941 941  
... ... @@ -948,19 +948,18 @@
948 948  
949 949  (% class="box infomessage" %)
950 950  (((
951 -**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]]**
952 952  )))
953 953  
954 -
955 955  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
956 956  
957 -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]]
958 958  
959 959  * AT Command:
960 960  
961 961  (% class="box infomessage" %)
962 962  (((
963 -**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]]**
964 964  )))
965 965  
966 966  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -967,10 +967,9 @@
967 967  
968 968  (% class="box infomessage" %)
969 969  (((
970 -**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]] **
971 971  )))
972 972  
973 -
974 974  ==== 3.4.2.11 Trigger – Set minimum interval ====
975 975  
976 976  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -989,7 +989,6 @@
989 989  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
990 990  )))
991 991  
992 -
993 993  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
994 994  
995 995  * AT Command:
... ... @@ -1164,13 +1164,13 @@
1164 1164  
1165 1165  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1166 1166  
1167 -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]]
1168 1168  
1169 1169  * AT Command:
1170 1170  
1171 1171  (% class="box infomessage" %)
1172 1172  (((
1173 -**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]]**
1174 1174  )))
1175 1175  
1176 1176  * Downlink Payload (prefix 0xA5):
... ... @@ -1180,7 +1180,6 @@
1180 1180  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1181 1181  )))
1182 1182  
1183 -
1184 1184  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1185 1185  
1186 1186  * AT Command:
... ... @@ -1205,7 +1205,6 @@
1205 1205  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1206 1206  )))
1207 1207  
1208 -
1209 1209  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1210 1210  
1211 1211  Clear counting for counting mode
... ... @@ -1224,7 +1224,6 @@
1224 1224  **0x A6 01     ~/~/ clear all counting,**
1225 1225  )))
1226 1226  
1227 -
1228 1228  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1229 1229  
1230 1230  * AT Command:
... ... @@ -1243,8 +1243,6 @@
1243 1243  
1244 1244  (((
1245 1245  range: aa bb cc:0 to 16777215,  (unit:second)
1246 -
1247 -
1248 1248  )))
1249 1249  
1250 1250  == 3.5 Integrate with Mydevice ==
... ... @@ -1265,7 +1265,6 @@
1265 1265  
1266 1266  [[image:image-20220524094641-12.png||height="402" width="718"]]
1267 1267  
1268 -
1269 1269  **Step 3**: Create an account or log in Mydevices.
1270 1270  
1271 1271  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1274,7 +1274,6 @@
1274 1274  
1275 1275  [[image:1653356838789-523.png||height="337" width="740"]]
1276 1276  
1277 -
1278 1278  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1279 1279  
1280 1280  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1287,7 +1287,6 @@
1287 1287  
1288 1288  [[image:image-20220524094909-5.png||height="341" width="734"]]
1289 1289  
1290 -
1291 1291  == 3.6 Interface Detail ==
1292 1292  
1293 1293  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1296,7 +1296,6 @@
1296 1296  
1297 1297  [[image:1653356991268-289.png]]
1298 1298  
1299 -
1300 1300  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1301 1301  
1302 1302  (((
... ... @@ -1312,105 +1312,51 @@
1312 1312  [[image:1653357170703-587.png]]
1313 1313  
1314 1314  (((
1315 -(((
1316 1316  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1317 1317  )))
1318 -)))
1319 1319  
1320 -(((
1321 -
1322 -)))
1323 1323  
1324 -(((
1325 1325  **Example1**: Connect to a Low active sensor.
1326 -)))
1327 1327  
1328 -(((
1329 1329  This type of sensor will output a low signal GND when active.
1330 -)))
1331 1331  
1332 -* (((
1333 -Connect sensor’s output to DI1-
1334 -)))
1335 -* (((
1336 -Connect sensor’s VCC to DI1+.
1337 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1338 1338  
1339 -(((
1340 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1341 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1342 1342  
1343 -(((
1344 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1345 -)))
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.**
1346 1346  
1347 -(((
1348 -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.
1349 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1350 1350  
1351 -(((
1352 -
1353 -)))
1354 1354  
1355 -(((
1356 1356  **Example2**: Connect to a High active sensor.
1357 -)))
1358 1358  
1359 -(((
1360 1360  This type of sensor will output a high signal (example 24v) when active.
1361 -)))
1362 1362  
1363 -* (((
1364 -Connect sensor’s output to DI1+
1365 -)))
1366 -* (((
1367 -Connect sensor’s GND DI1-.
1368 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1369 1369  
1370 -(((
1371 1371  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1372 -)))
1373 1373  
1374 -(((
1375 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1376 -)))
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.**
1377 1377  
1378 -(((
1379 -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.
1380 -)))
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.
1381 1381  
1382 -(((
1383 -
1384 -)))
1385 1385  
1386 -(((
1387 1387  **Example3**: Connect to a 220v high active sensor.
1388 -)))
1389 1389  
1390 -(((
1391 1391  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1392 -)))
1393 1393  
1394 -* (((
1395 -Connect sensor’s output to DI1+ with a serial 50K resistor
1396 -)))
1397 -* (((
1398 -Connect sensor’s GND DI1-.
1399 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1400 1400  
1401 -(((
1402 1402  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1403 -)))
1404 1404  
1405 -(((
1406 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1407 -)))
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.**
1408 1408  
1409 -(((
1410 -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.
1411 -)))
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.
1412 1412  
1413 -
1414 1414  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1415 1415  
1416 1416  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1417,7 +1417,6 @@
1417 1417  
1418 1418  [[image:1653357531600-905.png]]
1419 1419  
1420 -
1421 1421  === 3.6.4 Analog Input Interface ===
1422 1422  
1423 1423  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:
... ... @@ -1445,7 +1445,6 @@
1445 1445  
1446 1446  [[image:1653357648330-671.png||height="155" width="733"]]
1447 1447  
1448 -
1449 1449  === 3.6.5 Relay Output ===
1450 1450  
1451 1451  (((
... ... @@ -1456,12 +1456,10 @@
1456 1456  
1457 1457  [[image:image-20220524100215-10.png||height="382" width="723"]]
1458 1458  
1459 -
1460 1460  == 3.7 LEDs Indicators ==
1461 1461  
1462 1462  [[image:image-20220524100748-11.png]]
1463 1463  
1464 -
1465 1465  = 4. Use AT Command =
1466 1466  
1467 1467  == 4.1 Access AT Command ==
... ... @@ -1662,8 +1662,6 @@
1662 1662  
1663 1663  (((
1664 1664  AT+CFG: Print all settings
1665 -
1666 -
1667 1667  )))
1668 1668  
1669 1669  == 4.2 Common AT Command Sequence ==
... ... @@ -1705,8 +1705,6 @@
1705 1705  
1706 1706  (((
1707 1707  (% style="background-color:#dcdcdc" %)ATZ
1708 -
1709 -
1710 1710  )))
1711 1711  
1712 1712  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1788,7 +1788,6 @@
1788 1788  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1789 1789  ATZ
1790 1790  
1791 -
1792 1792  = 5. FAQ =
1793 1793  
1794 1794  == 5.1 How to upgrade the image? ==
... ... @@ -1819,7 +1819,6 @@
1819 1819  
1820 1820  [[image:1653360054704-518.png||height="186" width="745"]]
1821 1821  
1822 -
1823 1823  (((
1824 1824  (((
1825 1825  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1828,8 +1828,6 @@
1828 1828  
1829 1829  (((
1830 1830  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1831 -
1832 -
1833 1833  )))
1834 1834  
1835 1835  (((
... ... @@ -1883,18 +1883,10 @@
1883 1883  
1884 1884  [[image:1653360498588-932.png||height="485" width="726"]]
1885 1885  
1886 -
1887 1887  == 5.4 Can I see counting event in Serial? ==
1888 1888  
1889 1889  (((
1890 1890  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.
1891 -
1892 -
1893 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1894 -
1895 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1896 -
1897 -
1898 1898  )))
1899 1899  
1900 1900  (((
... ... @@ -1908,8 +1908,11 @@
1908 1908  )))
1909 1909  
1910 1910  (((
1911 -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]]
1912 1912  
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 +
1913 1913  
1914 1914  )))
1915 1915  
... ... @@ -1918,7 +1918,9 @@
1918 1918  )))
1919 1919  
1920 1920  (((
1921 -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/]]
1922 1922  )))
1923 1923  
1924 1924  (((
... ... @@ -1930,7 +1930,9 @@
1930 1930  )))
1931 1931  
1932 1932  (((
1933 -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]]
1934 1934  )))
1935 1935  
1936 1936  (((
... ... @@ -2004,8 +2004,6 @@
2004 2004  (((
2005 2005  * (((
2006 2006  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2007 -
2008 -
2009 2009  )))
2010 2010  
2011 2011  = 8. Packing Info =
... ... @@ -2038,8 +2038,6 @@
2038 2038  * Device Weight: 105g
2039 2039  * Package Size / pcs : 14.5 x 8 x 5 cm
2040 2040  * Weight / pcs : 170g
2041 -
2042 -
2043 2043  )))
2044 2044  )))
2045 2045  
... ... @@ -2061,8 +2061,6 @@
2061 2061  (((
2062 2062  (((
2063 2063   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2064 -
2065 -
2066 2066  )))
2067 2067  
2068 2068  (((
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