<
From version < 77.15 >
edited by Xiaoling
on 2022/06/10 08:39
To version < 68.15 >
edited by Xiaoling
on 2022/05/25 15:17
>
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;
... ... @@ -338,8 +338,6 @@
338 338  ** DO1 is high in case there is load between DO1 and V+.
339 339  ** DO1 LED is off in both case
340 340  
341 -
342 -
343 343  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
344 344  
345 345  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -432,8 +432,6 @@
432 432  )))
433 433  )))
434 434  
435 -
436 -
437 437  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
438 438  
439 439  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -474,12 +474,8 @@
474 474  
475 475  (((
476 476  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
477 -
478 -
479 479  )))
480 480  
481 -
482 -
483 483  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
484 484  
485 485  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -560,8 +560,6 @@
560 560  )))
561 561  )))
562 562  
563 -
564 -
565 565  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
566 566  
567 567  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -602,8 +602,6 @@
602 602  
603 603  (((
604 604  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
605 -
606 -
607 607  )))
608 608  
609 609  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -632,7 +632,6 @@
632 632  
633 633  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
634 634  
635 -
636 636  (% style="color:#4f81bd" %)**Trigger base on current**:
637 637  
638 638  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -641,7 +641,6 @@
641 641  
642 642  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
643 643  
644 -
645 645  (% style="color:#4f81bd" %)**Trigger base on DI status**:
646 646  
647 647  DI status trigger Flag.
... ... @@ -728,13 +728,10 @@
728 728  
729 729  When device got this command, it will send the MOD6 payload.
730 730  
731 -
732 732  === 3.3.7 Payload Decoder ===
733 733  
734 734  (((
735 735  **Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
736 -
737 -
738 738  )))
739 739  
740 740  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -745,7 +745,7 @@
745 745  There are two kinds of Commands:
746 746  )))
747 747  
748 -* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
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
749 749  
750 750  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
751 751  
... ... @@ -753,7 +753,6 @@
753 753  
754 754  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
755 755  
756 -
757 757  === 3.4.2 Sensor related commands ===
758 758  
759 759  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -776,7 +776,6 @@
776 776  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
777 777  )))
778 778  
779 -
780 780  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
781 781  
782 782  Set work mode.
... ... @@ -797,7 +797,6 @@
797 797  **0x0A aa     ~/~/ Same as AT+MOD=aa**
798 798  )))
799 799  
800 -
801 801  ==== 3.4.2.3 Poll an uplink ====
802 802  
803 803  * AT Command:
... ... @@ -813,10 +813,9 @@
813 813  
814 814  **Example**: 0x08FF, ask device to send an Uplink
815 815  
816 -
817 817  ==== 3.4.2.4 Enable Trigger Mode ====
818 818  
819 -Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
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]]
820 820  
821 821  * AT Command:
822 822  
... ... @@ -836,7 +836,6 @@
836 836  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
837 837  )))
838 838  
839 -
840 840  ==== 3.4.2.5 Poll trigger settings ====
841 841  
842 842  Poll trigger settings,
... ... @@ -852,7 +852,6 @@
852 852  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
853 853  )))
854 854  
855 -
856 856  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
857 857  
858 858  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -875,7 +875,6 @@
875 875  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
876 876  )))
877 877  
878 -
879 879  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
880 880  
881 881  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -902,7 +902,6 @@
902 902  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
903 903  )))
904 904  
905 -
906 906  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
907 907  
908 908  Set DI2 trigger.
... ... @@ -929,10 +929,9 @@
929 929  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
930 930  )))
931 931  
932 -
933 933  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
934 934  
935 -Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
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]]
936 936  
937 937  * AT Command:
938 938  
... ... @@ -945,19 +945,18 @@
945 945  
946 946  (% class="box infomessage" %)
947 947  (((
948 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
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]]**
949 949  )))
950 950  
951 -
952 952  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
953 953  
954 -Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
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]]
955 955  
956 956  * AT Command:
957 957  
958 958  (% class="box infomessage" %)
959 959  (((
960 -**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
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]]**
961 961  )))
962 962  
963 963  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -964,10 +964,9 @@
964 964  
965 965  (% class="box infomessage" %)
966 966  (((
967 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
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]] **
968 968  )))
969 969  
970 -
971 971  ==== 3.4.2.11 Trigger – Set minimum interval ====
972 972  
973 973  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -986,7 +986,6 @@
986 986  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
987 987  )))
988 988  
989 -
990 990  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
991 991  
992 992  * AT Command:
... ... @@ -1161,13 +1161,13 @@
1161 1161  
1162 1162  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1163 1163  
1164 -When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
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]]
1165 1165  
1166 1166  * AT Command:
1167 1167  
1168 1168  (% class="box infomessage" %)
1169 1169  (((
1170 -**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]]**
1171 1171  )))
1172 1172  
1173 1173  * Downlink Payload (prefix 0xA5):
... ... @@ -1177,7 +1177,6 @@
1177 1177  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1178 1178  )))
1179 1179  
1180 -
1181 1181  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1182 1182  
1183 1183  * AT Command:
... ... @@ -1202,7 +1202,6 @@
1202 1202  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1203 1203  )))
1204 1204  
1205 -
1206 1206  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1207 1207  
1208 1208  Clear counting for counting mode
... ... @@ -1221,7 +1221,6 @@
1221 1221  **0x A6 01     ~/~/ clear all counting,**
1222 1222  )))
1223 1223  
1224 -
1225 1225  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1226 1226  
1227 1227  * AT Command:
... ... @@ -1240,8 +1240,6 @@
1240 1240  
1241 1241  (((
1242 1242  range: aa bb cc:0 to 16777215,  (unit:second)
1243 -
1244 -
1245 1245  )))
1246 1246  
1247 1247  == 3.5 Integrate with Mydevice ==
... ... @@ -1262,7 +1262,6 @@
1262 1262  
1263 1263  [[image:image-20220524094641-12.png||height="402" width="718"]]
1264 1264  
1265 -
1266 1266  **Step 3**: Create an account or log in Mydevices.
1267 1267  
1268 1268  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1271,7 +1271,6 @@
1271 1271  
1272 1272  [[image:1653356838789-523.png||height="337" width="740"]]
1273 1273  
1274 -
1275 1275  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1276 1276  
1277 1277  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1284,7 +1284,6 @@
1284 1284  
1285 1285  [[image:image-20220524094909-5.png||height="341" width="734"]]
1286 1286  
1287 -
1288 1288  == 3.6 Interface Detail ==
1289 1289  
1290 1290  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1293,7 +1293,6 @@
1293 1293  
1294 1294  [[image:1653356991268-289.png]]
1295 1295  
1296 -
1297 1297  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1298 1298  
1299 1299  (((
... ... @@ -1309,105 +1309,51 @@
1309 1309  [[image:1653357170703-587.png]]
1310 1310  
1311 1311  (((
1312 -(((
1313 1313  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1314 1314  )))
1315 -)))
1316 1316  
1317 -(((
1318 -
1319 -)))
1320 1320  
1321 -(((
1322 1322  **Example1**: Connect to a Low active sensor.
1323 -)))
1324 1324  
1325 -(((
1326 1326  This type of sensor will output a low signal GND when active.
1327 -)))
1328 1328  
1329 -* (((
1330 -Connect sensor’s output to DI1-
1331 -)))
1332 -* (((
1333 -Connect sensor’s VCC to DI1+.
1334 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1335 1335  
1336 -(((
1337 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1338 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is: ​​
1339 1339  
1340 -(((
1341 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1342 -)))
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.**
1343 1343  
1344 -(((
1345 -If DI1+ = 12v, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1346 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1347 1347  
1348 -(((
1349 -
1350 -)))
1351 1351  
1352 -(((
1353 1353  **Example2**: Connect to a High active sensor.
1354 -)))
1355 1355  
1356 -(((
1357 1357  This type of sensor will output a high signal (example 24v) when active.
1358 -)))
1359 1359  
1360 -* (((
1361 -Connect sensor’s output to DI1+
1362 -)))
1363 -* (((
1364 -Connect sensor’s GND DI1-.
1365 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1366 1366  
1367 -(((
1368 1368  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1369 -)))
1370 1370  
1371 -(((
1372 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1373 -)))
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.**
1374 1374  
1375 -(((
1376 -If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
1377 -)))
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.
1378 1378  
1379 -(((
1380 -
1381 -)))
1382 1382  
1383 -(((
1384 1384  **Example3**: Connect to a 220v high active sensor.
1385 -)))
1386 1386  
1387 -(((
1388 1388  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1389 -)))
1390 1390  
1391 -* (((
1392 -Connect sensor’s output to DI1+ with a serial 50K resistor
1393 -)))
1394 -* (((
1395 -Connect sensor’s GND DI1-.
1396 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1397 1397  
1398 -(((
1399 1399  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1400 -)))
1401 1401  
1402 -(((
1403 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1404 -)))
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.**
1405 1405  
1406 -(((
1407 -If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1408 -)))
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.
1409 1409  
1410 -
1411 1411  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1412 1412  
1413 1413  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1414,7 +1414,6 @@
1414 1414  
1415 1415  [[image:1653357531600-905.png]]
1416 1416  
1417 -
1418 1418  === 3.6.4 Analog Input Interface ===
1419 1419  
1420 1420  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
... ... @@ -1442,7 +1442,6 @@
1442 1442  
1443 1443  [[image:1653357648330-671.png||height="155" width="733"]]
1444 1444  
1445 -
1446 1446  === 3.6.5 Relay Output ===
1447 1447  
1448 1448  (((
... ... @@ -1453,12 +1453,10 @@
1453 1453  
1454 1454  [[image:image-20220524100215-10.png||height="382" width="723"]]
1455 1455  
1456 -
1457 1457  == 3.7 LEDs Indicators ==
1458 1458  
1459 1459  [[image:image-20220524100748-11.png]]
1460 1460  
1461 -
1462 1462  = 4. Use AT Command =
1463 1463  
1464 1464  == 4.1 Access AT Command ==
... ... @@ -1659,8 +1659,6 @@
1659 1659  
1660 1660  (((
1661 1661  AT+CFG: Print all settings
1662 -
1663 -
1664 1664  )))
1665 1665  
1666 1666  == 4.2 Common AT Command Sequence ==
... ... @@ -1702,8 +1702,6 @@
1702 1702  
1703 1703  (((
1704 1704  (% style="background-color:#dcdcdc" %)ATZ
1705 -
1706 -
1707 1707  )))
1708 1708  
1709 1709  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1785,7 +1785,6 @@
1785 1785  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1786 1786  ATZ
1787 1787  
1788 -
1789 1789  = 5. FAQ =
1790 1790  
1791 1791  == 5.1 How to upgrade the image? ==
... ... @@ -1816,7 +1816,6 @@
1816 1816  
1817 1817  [[image:1653360054704-518.png||height="186" width="745"]]
1818 1818  
1819 -
1820 1820  (((
1821 1821  (((
1822 1822  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1825,8 +1825,6 @@
1825 1825  
1826 1826  (((
1827 1827  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1828 -
1829 -
1830 1830  )))
1831 1831  
1832 1832  (((
... ... @@ -1880,18 +1880,10 @@
1880 1880  
1881 1881  [[image:1653360498588-932.png||height="485" width="726"]]
1882 1882  
1883 -
1884 1884  == 5.4 Can I see counting event in Serial? ==
1885 1885  
1886 1886  (((
1887 1887  User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
1888 -
1889 -
1890 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1891 -
1892 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1893 -
1894 -
1895 1895  )))
1896 1896  
1897 1897  (((
... ... @@ -1905,8 +1905,10 @@
1905 1905  )))
1906 1906  
1907 1907  (((
1908 -Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1764 +Please see this link for how to debug:
1909 1909  
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 +
1910 1910  
1911 1911  )))
1912 1912  
... ... @@ -1915,7 +1915,9 @@
1915 1915  )))
1916 1916  
1917 1917  (((
1918 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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/]]
1919 1919  )))
1920 1920  
1921 1921  (((
... ... @@ -1927,7 +1927,9 @@
1927 1927  )))
1928 1928  
1929 1929  (((
1930 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
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]]
1931 1931  )))
1932 1932  
1933 1933  (((
... ... @@ -2001,8 +2001,6 @@
2001 2001  (((
2002 2002  * (((
2003 2003  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2004 -
2005 -
2006 2006  )))
2007 2007  
2008 2008  = 8. Packing Info =
... ... @@ -2035,8 +2035,6 @@
2035 2035  * Device Weight: 105g
2036 2036  * Package Size / pcs : 14.5 x 8 x 5 cm
2037 2037  * Weight / pcs : 170g
2038 -
2039 -
2040 2040  )))
2041 2041  )))
2042 2042  
... ... @@ -2058,8 +2058,6 @@
2058 2058  (((
2059 2059  (((
2060 2060   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2061 -
2062 -
2063 2063  )))
2064 2064  
2065 2065  (((
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