Last modified by Saxer Lin on 2025/04/15 17:24
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From version < 75.9 >
edited by Xiaoling
on 2022/06/01 17:28
To version < 68.15 >
edited by Xiaoling
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... ... @@ -16,7 +16,7 @@
16 16  == 1.1 What is LT Series I/O Controller ==
17 17  
18 18  (((
19 -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.
20 20  )))
21 21  
22 22  (((
... ... @@ -24,7 +24,7 @@
24 24  )))
25 25  
26 26  (((
27 -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.
28 28  )))
29 29  
30 30  (((
... ... @@ -41,8 +41,6 @@
41 41  
42 42  (((
43 43  [[image:1653295757274-912.png]]
44 -
45 -
46 46  )))
47 47  
48 48  == 1.2  Specifications ==
... ... @@ -153,8 +153,6 @@
153 153  )))
154 154  * (((
155 155  Packet engine up to 256 bytes with CRC.
156 -
157 -
158 158  )))
159 159  
160 160  == 1.3 Features ==
... ... @@ -167,8 +167,6 @@
167 167  * Firmware upgradable via program port
168 168  * Counting
169 169  
170 -
171 -
172 172  == 1.4  Applications ==
173 173  
174 174  * Smart Buildings & Home Automation
... ... @@ -178,8 +178,6 @@
178 178  * Smart Cities
179 179  * Smart Factory
180 180  
181 -
182 -
183 183  == 1.5 Hardware Variants ==
184 184  
185 185  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -193,8 +193,6 @@
193 193  * 1 x Counting Port
194 194  )))
195 195  
196 -
197 -
198 198  = 2. Power ON Device =
199 199  
200 200  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.
... ... @@ -205,7 +205,6 @@
205 205  
206 206  [[image:1653297104069-180.png]]
207 207  
208 -
209 209  = 3. Operation Mode =
210 210  
211 211  == 3.1 How it works? ==
... ... @@ -216,8 +216,6 @@
216 216  
217 217  (((
218 218  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.
219 -
220 -
221 221  )))
222 222  
223 223  == 3.2 Example to join LoRaWAN network ==
... ... @@ -248,12 +248,10 @@
248 248  
249 249  [[image:1653297955910-247.png||height="321" width="716"]]
250 250  
251 -
252 252  Add APP KEY and DEV EUI
253 253  
254 254  [[image:1653298023685-319.png]]
255 255  
256 -
257 257  (((
258 258  **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.
259 259  )))
... ... @@ -260,7 +260,6 @@
260 260  
261 261  [[image:1653298044601-602.png||height="405" width="709"]]
262 262  
263 -
264 264  == 3.3 Uplink Payload ==
265 265  
266 266  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -414,7 +414,6 @@
414 414  )))
415 415  )))
416 416  
417 -
418 418  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
419 419  
420 420  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -455,8 +455,6 @@
455 455  
456 456  (((
457 457  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
458 -
459 -
460 460  )))
461 461  
462 462  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
... ... @@ -539,7 +539,6 @@
539 539  )))
540 540  )))
541 541  
542 -
543 543  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
544 544  
545 545  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -580,8 +580,6 @@
580 580  
581 581  (((
582 582  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
583 -
584 -
585 585  )))
586 586  
587 587  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -704,13 +704,10 @@
704 704  
705 705  When device got this command, it will send the MOD6 payload.
706 706  
707 -
708 708  === 3.3.7 Payload Decoder ===
709 709  
710 710  (((
711 711  **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/]]
712 -
713 -
714 714  )))
715 715  
716 716  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -729,7 +729,6 @@
729 729  
730 730  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]]
731 731  
732 -
733 733  === 3.4.2 Sensor related commands ===
734 734  
735 735  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -752,7 +752,6 @@
752 752  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
753 753  )))
754 754  
755 -
756 756  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
757 757  
758 758  Set work mode.
... ... @@ -773,7 +773,6 @@
773 773  **0x0A aa     ~/~/ Same as AT+MOD=aa**
774 774  )))
775 775  
776 -
777 777  ==== 3.4.2.3 Poll an uplink ====
778 778  
779 779  * AT Command:
... ... @@ -789,7 +789,6 @@
789 789  
790 790  **Example**: 0x08FF, ask device to send an Uplink
791 791  
792 -
793 793  ==== 3.4.2.4 Enable Trigger Mode ====
794 794  
795 795  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]]
... ... @@ -812,7 +812,6 @@
812 812  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
813 813  )))
814 814  
815 -
816 816  ==== 3.4.2.5 Poll trigger settings ====
817 817  
818 818  Poll trigger settings,
... ... @@ -828,7 +828,6 @@
828 828  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
829 829  )))
830 830  
831 -
832 832  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
833 833  
834 834  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -851,7 +851,6 @@
851 851  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
852 852  )))
853 853  
854 -
855 855  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
856 856  
857 857  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -878,7 +878,6 @@
878 878  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
879 879  )))
880 880  
881 -
882 882  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
883 883  
884 884  Set DI2 trigger.
... ... @@ -905,7 +905,6 @@
905 905  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
906 906  )))
907 907  
908 -
909 909  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
910 910  
911 911  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]]
... ... @@ -924,7 +924,6 @@
924 924  **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]]**
925 925  )))
926 926  
927 -
928 928  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
929 929  
930 930  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]]
... ... @@ -943,7 +943,6 @@
943 943  **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]] **
944 944  )))
945 945  
946 -
947 947  ==== 3.4.2.11 Trigger – Set minimum interval ====
948 948  
949 949  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -962,7 +962,6 @@
962 962  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
963 963  )))
964 964  
965 -
966 966  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
967 967  
968 968  * AT Command:
... ... @@ -1153,7 +1153,6 @@
1153 1153  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1154 1154  )))
1155 1155  
1156 -
1157 1157  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1158 1158  
1159 1159  * AT Command:
... ... @@ -1178,7 +1178,6 @@
1178 1178  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1179 1179  )))
1180 1180  
1181 -
1182 1182  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1183 1183  
1184 1184  Clear counting for counting mode
... ... @@ -1197,7 +1197,6 @@
1197 1197  **0x A6 01     ~/~/ clear all counting,**
1198 1198  )))
1199 1199  
1200 -
1201 1201  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1202 1202  
1203 1203  * AT Command:
... ... @@ -1216,8 +1216,6 @@
1216 1216  
1217 1217  (((
1218 1218  range: aa bb cc:0 to 16777215,  (unit:second)
1219 -
1220 -
1221 1221  )))
1222 1222  
1223 1223  == 3.5 Integrate with Mydevice ==
... ... @@ -1246,7 +1246,6 @@
1246 1246  
1247 1247  [[image:1653356838789-523.png||height="337" width="740"]]
1248 1248  
1249 -
1250 1250  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1251 1251  
1252 1252  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1259,7 +1259,6 @@
1259 1259  
1260 1260  [[image:image-20220524094909-5.png||height="341" width="734"]]
1261 1261  
1262 -
1263 1263  == 3.6 Interface Detail ==
1264 1264  
1265 1265  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1268,7 +1268,6 @@
1268 1268  
1269 1269  [[image:1653356991268-289.png]]
1270 1270  
1271 -
1272 1272  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1273 1273  
1274 1274  (((
... ... @@ -1284,105 +1284,51 @@
1284 1284  [[image:1653357170703-587.png]]
1285 1285  
1286 1286  (((
1287 -(((
1288 1288  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1289 1289  )))
1290 -)))
1291 1291  
1292 -(((
1293 -
1294 -)))
1295 1295  
1296 -(((
1297 1297  **Example1**: Connect to a Low active sensor.
1298 -)))
1299 1299  
1300 -(((
1301 1301  This type of sensor will output a low signal GND when active.
1302 -)))
1303 1303  
1304 -* (((
1305 -Connect sensor’s output to DI1-
1306 -)))
1307 -* (((
1308 -Connect sensor’s VCC to DI1+.
1309 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1310 1310  
1311 -(((
1312 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1313 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1314 1314  
1315 -(((
1316 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1317 -)))
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.**
1318 1318  
1319 -(((
1320 -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.
1321 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1322 1322  
1323 -(((
1324 -
1325 -)))
1326 1326  
1327 -(((
1328 1328  **Example2**: Connect to a High active sensor.
1329 -)))
1330 1330  
1331 -(((
1332 1332  This type of sensor will output a high signal (example 24v) when active.
1333 -)))
1334 1334  
1335 -* (((
1336 -Connect sensor’s output to DI1+
1337 -)))
1338 -* (((
1339 -Connect sensor’s GND DI1-.
1340 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1341 1341  
1342 -(((
1343 1343  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1344 -)))
1345 1345  
1346 -(((
1347 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1348 -)))
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.**
1349 1349  
1350 -(((
1351 -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.
1352 -)))
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.
1353 1353  
1354 -(((
1355 -
1356 -)))
1357 1357  
1358 -(((
1359 1359  **Example3**: Connect to a 220v high active sensor.
1360 -)))
1361 1361  
1362 -(((
1363 1363  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1364 -)))
1365 1365  
1366 -* (((
1367 -Connect sensor’s output to DI1+ with a serial 50K resistor
1368 -)))
1369 -* (((
1370 -Connect sensor’s GND DI1-.
1371 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1372 1372  
1373 -(((
1374 1374  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1375 -)))
1376 1376  
1377 -(((
1378 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1379 -)))
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.**
1380 1380  
1381 -(((
1382 -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.
1383 -)))
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.
1384 1384  
1385 -
1386 1386  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1387 1387  
1388 1388  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1389,7 +1389,6 @@
1389 1389  
1390 1390  [[image:1653357531600-905.png]]
1391 1391  
1392 -
1393 1393  === 3.6.4 Analog Input Interface ===
1394 1394  
1395 1395  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:
... ... @@ -1417,7 +1417,6 @@
1417 1417  
1418 1418  [[image:1653357648330-671.png||height="155" width="733"]]
1419 1419  
1420 -
1421 1421  === 3.6.5 Relay Output ===
1422 1422  
1423 1423  (((
... ... @@ -1428,12 +1428,10 @@
1428 1428  
1429 1429  [[image:image-20220524100215-10.png||height="382" width="723"]]
1430 1430  
1431 -
1432 1432  == 3.7 LEDs Indicators ==
1433 1433  
1434 1434  [[image:image-20220524100748-11.png]]
1435 1435  
1436 -
1437 1437  = 4. Use AT Command =
1438 1438  
1439 1439  == 4.1 Access AT Command ==
... ... @@ -1634,8 +1634,6 @@
1634 1634  
1635 1635  (((
1636 1636  AT+CFG: Print all settings
1637 -
1638 -
1639 1639  )))
1640 1640  
1641 1641  == 4.2 Common AT Command Sequence ==
... ... @@ -1677,8 +1677,6 @@
1677 1677  
1678 1678  (((
1679 1679  (% style="background-color:#dcdcdc" %)ATZ
1680 -
1681 -
1682 1682  )))
1683 1683  
1684 1684  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1760,7 +1760,6 @@
1760 1760  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1761 1761  ATZ
1762 1762  
1763 -
1764 1764  = 5. FAQ =
1765 1765  
1766 1766  == 5.1 How to upgrade the image? ==
... ... @@ -1791,7 +1791,6 @@
1791 1791  
1792 1792  [[image:1653360054704-518.png||height="186" width="745"]]
1793 1793  
1794 -
1795 1795  (((
1796 1796  (((
1797 1797  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1800,8 +1800,6 @@
1800 1800  
1801 1801  (((
1802 1802  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1803 -
1804 -
1805 1805  )))
1806 1806  
1807 1807  (((
... ... @@ -1855,13 +1855,10 @@
1855 1855  
1856 1856  [[image:1653360498588-932.png||height="485" width="726"]]
1857 1857  
1858 -
1859 1859  == 5.4 Can I see counting event in Serial? ==
1860 1860  
1861 1861  (((
1862 1862  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.
1863 -
1864 -
1865 1865  )))
1866 1866  
1867 1867  (((
... ... @@ -1875,8 +1875,10 @@
1875 1875  )))
1876 1876  
1877 1877  (((
1878 -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:
1879 1879  
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 +
1880 1880  
1881 1881  )))
1882 1882  
... ... @@ -1885,7 +1885,9 @@
1885 1885  )))
1886 1886  
1887 1887  (((
1888 -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/]]
1889 1889  )))
1890 1890  
1891 1891  (((
... ... @@ -1897,7 +1897,9 @@
1897 1897  )))
1898 1898  
1899 1899  (((
1900 -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]]
1901 1901  )))
1902 1902  
1903 1903  (((
... ... @@ -1971,8 +1971,6 @@
1971 1971  (((
1972 1972  * (((
1973 1973  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1974 -
1975 -
1976 1976  )))
1977 1977  
1978 1978  = 8. Packing Info =
... ... @@ -2005,8 +2005,6 @@
2005 2005  * Device Weight: 105g
2006 2006  * Package Size / pcs : 14.5 x 8 x 5 cm
2007 2007  * Weight / pcs : 170g
2008 -
2009 -
2010 2010  )))
2011 2011  )))
2012 2012  
... ... @@ -2028,8 +2028,6 @@
2028 2028  (((
2029 2029  (((
2030 2030   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2031 -
2032 -
2033 2033  )))
2034 2034  
2035 2035  (((
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