Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 13.2 >
edited by Xiaoling
on 2022/05/23 17:45
To version < 17.2 >
edited by Xiaoling
on 2022/05/23 18:08
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Summary

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Content
... ... @@ -43,7 +43,7 @@
43 43  **Hardware System:**
44 44  
45 45  * STM32L072CZT6 MCU
46 -* SX1276/78 Wireless Chip
46 +* SX1276/78 Wireless Chip 
47 47  * Power Consumption:
48 48  ** Idle: 4mA@12v
49 49  ** 20dB Transmit: 34mA@12v
... ... @@ -55,7 +55,7 @@
55 55  * 2 x Relay Output (5A@250VAC / 30VDC)
56 56  * 2 x 0~~20mA Analog Input (res:0.01mA)
57 57  * 2 x 0~~30V Analog Input (res:0.01v)
58 -* Power Input 7~~ 24V DC.
58 +* Power Input 7~~ 24V DC. 
59 59  
60 60  **LoRa Spec:**
61 61  
... ... @@ -99,7 +99,7 @@
99 99  
100 100  == 1.5 Hardware Variants ==
101 101  
102 -(% border="1" style="background-color:#f7faff; width:540px" %)
102 +(% border="1" style="background-color:#f7faff; width:500px" %)
103 103  |(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
104 104  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
105 105  * 2 x Digital Input (Bi-direction)
... ... @@ -122,7 +122,7 @@
122 122  
123 123  = 3. Operation Mode =
124 124  
125 -== 3.1 How it works? ==
125 +== 3.1 How it works? ==
126 126  
127 127  The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on **TX LED** will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. **TX LED** will be on for 5 seconds after joined in network. When there is message from server, the **RX LED** will be on for 1 second. 
128 128  
... ... @@ -130,7 +130,7 @@
130 130  
131 131  3.2 Example to join LoRaWAN network
132 132  
133 -This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here.
133 +This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here. 
134 134  
135 135  [[image:image-20220523172350-1.png||height="266" width="864"]]
136 136  
... ... @@ -153,7 +153,7 @@
153 153  
154 154  Add APP EUI in the application.
155 155  
156 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]][[image:1653297955910-247.png||height="321" width="716"]]
156 +[[image:1653297955910-247.png||height="321" width="716"]]
157 157  
158 158  Add APP KEY and DEV EUI
159 159  
... ... @@ -165,7 +165,7 @@
165 165  
166 166  [[image:1653298044601-602.png||height="405" width="709"]]
167 167  
168 -== [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]3.3 Uplink Payload ==
168 +== 3.3 Uplink Payload ==
169 169  
170 170  There are five working modes + one interrupt mode on LT for different type application:
171 171  
... ... @@ -182,9 +182,10 @@
182 182  
183 183  [[image:image-20220523174024-3.png]]
184 184  
185 +(((
186 +(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
187 +)))
185 185  
186 -**DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
187 -
188 188  [[image:image-20220523174254-4.png]]
189 189  
190 190  * RO is for relay. ROx=1 : close，ROx=0 always open.
... ... @@ -191,13 +191,12 @@
191 191  * DI is for digital input. DIx=1: high or float, DIx=0: low.
192 192  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
193 193  
194 -Note: DI3 and DO3 bit are not valid for LT-22222-L
195 +(% style="color:red" %)Note: DI3 and DO3 bit are not valid for LT-22222-L
195 195  
197 +For example if payload is: [[image:image-20220523175847-2.png]]
196 196  
197 -For example if payload is: 04 AB 04 AC 13 10 13 00 AA FF 01
199 +**The value for the interface is:  **
198 198  
199 -The value for the interface is:
200 -
201 201  AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
202 202  
203 203  AVI2 channel voltage is 0x04AC/1000=1.196V
... ... @@ -211,18 +211,11 @@
211 211  * [1] RO1 relay channel is close and the RO1 LED is ON.
212 212  * [0] RO2 relay channel is open and RO2 LED is OFF;
213 213  
214 -LT33222-L:
214 +**LT22222-L:**
215 215  
216 -* [1] DI3 channel is high input and DI3 LED is OFF;
217 -* [0] DI2 channel is low input;
218 -* [1] DI1 channel is high input and DI1 LED is OFF;
219 -
220 -LT22222-L:
221 -
222 222  * [1] DI2 channel is high input and DI2 LED is ON;
223 223  * [0] DI1 channel is low input;
224 224  
225 -
226 226  * [0] DO3 channel output state
227 227  ** DO3 is float in case no load between DO3 and V+.;
228 228  ** DO3 is high in case there is load between DO3 and V+.
... ... @@ -233,68 +233,61 @@
233 233  ** DO1 is high in case there is load between DO1 and V+.
234 234  ** DO1 LED is off in both case
235 235  
229 +=== 3.3.2 AT+MOD~=2, (Double DI Counting) ===
236 236  
237 -
238 -1.
239 -11.
240 -111. AT+MOD=2, (Double DI Counting)
241 -
242 -**For LT-33222-L**: this mode the **DI3** is used as a counting pin. Counting on DI3 reflect in COUNT1.
243 -
244 244  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
245 245  
246 -
247 247  Total : 11 bytes payload
248 248  
249 -(% border="1" style="background-color:#f7faff" %)
250 -|Size(bytes)|4|4|1|1|1
251 -|Value|COUNT1|COUNT2 |DIDORO*|(((
252 -Reserve
235 +[[image:image-20220523180452-3.png]]
253 253  
254 -
255 -)))|MOD
237 +(((
238 +(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
239 +)))
256 256  
241 +[[image:image-20220523180506-4.png]]
257 257  
258 -**DIDORO** is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
259 -
260 -(% border="1" style="background-color:#f7faff" %)
261 -|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
262 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
263 -
264 264  * RO is for relay. ROx=1 : close，ROx=0 always open.
265 265  * FIRST: Indicate this is the first packet after join network.
266 266  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
267 267  
268 -Note: DO3 bit is not valid for LT-22222-L.
247 +(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
269 269  
270 -
271 271  To use counting mode, please run:
272 272  
273 -AT+MOD=2
251 +(% class="box infomessage" %)
252 +(((
253 +**AT+MOD=2**
254 +)))
274 274  
275 -ATZ
256 +(% class="box infomessage" %)
257 +(((
258 +**ATZ**
259 +)))
276 276  
277 -
278 278  AT Commands for counting:
279 279  
280 -**For LT33222-L:**
281 -
282 -AT+TRIG1=0,100 (set DI3 port to trigger on low level, valid signal is 100ms)
283 -
284 -AT+TRIG1=1,100 (set DI3 port to trigger on high level, valid signal is 100ms )
285 -
286 -AT+SETCNT=1,60   (Set COUNT1 value to 60)
287 -
288 -
289 289  **For LT22222-L:**
290 290  
291 -AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms)
265 +(% class="box infomessage" %)
266 +(((
267 +**AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
268 +)))
292 292  
293 -AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
270 +(% class="box infomessage" %)
271 +(((
272 +**AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
273 +)))
294 294  
295 -AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms)
275 +(% class="box infomessage" %)
276 +(((
277 +**AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
278 +)))
296 296  
297 -AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms )
280 +(% class="box infomessage" %)
281 +(((
282 +**AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
283 +)))
298 298  
299 299  
300 300  AT+SETCNT=1,60   (Set COUNT1 value to 60)
... ... @@ -310,8 +310,8 @@
310 310  
311 311  
312 312  
313 -1.
314 -11.
299 +1.
300 +11.
315 315  111. AT+MOD=3, Single DI Counting + 2 x ACI
316 316  
317 317  **LT33222-L**: This mode the DI3 is used as a counting pin.
... ... @@ -331,7 +331,6 @@
331 331  Current
332 332  )))|DIDORO*|Reserve|MOD
333 333  
334 -
335 335  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
336 336  
337 337  (% border="1" style="background-color:#f7faff" %)
... ... @@ -357,8 +357,8 @@
357 357  
358 358  
359 359  
360 -1.
361 -11.
345 +1.
346 +11.
362 362  111. AT+MOD=4, Single DI Counting + 1 x Voltage Counting
363 363  
364 364  **LT33222-L**: This mode the DI3 is used as a counting pin.
... ... @@ -377,7 +377,6 @@
377 377  
378 378  )))|MOD
379 379  
380 -
381 381  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
382 382  
383 383  (% border="1" style="background-color:#f7faff" %)
... ... @@ -413,11 +413,10 @@
413 413  
414 414  
415 415  
416 -1.
417 -11.
400 +1.
401 +11.
418 418  111. AT+MOD=5, Single DI Counting + 2 x AVI + 1 x ACI
419 419  
420 -
421 421  **LT33222-L**: This mode the DI3 is used as a counting pin.
422 422  
423 423  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -443,8 +443,6 @@
443 443  
444 444  )))|MOD
445 445  
446 -
447 -
448 448  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
449 449  
450 450  (% border="1" style="background-color:#f7faff" %)
... ... @@ -471,11 +471,10 @@
471 471  
472 472  
473 473  
474 -1.
475 -11.
455 +1.
456 +11.
476 476  111. AT+ADDMOD=6. (Trigger Mode, Optional)
477 477  
478 -
479 479  **This mode is an optional mode for trigger purpose. It can run together with other mode.**
480 480  
481 481  For example, if user has configured below commands:
... ... @@ -483,13 +483,11 @@
483 483  * AT+MOD=1   à The normal working mode
484 484  * AT+ADDMOD6=1    à Enable trigger
485 485  
486 -
487 487  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
488 488  
489 489  1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN **unconfirmed** data type
490 490  1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN **CONFIRMED data type.**
491 491  
492 -
493 493  **AT Command to set Trigger Condition**:
494 494  
495 495  **Trigger base on voltage**:
... ... @@ -580,8 +580,6 @@
580 580  (6)
581 581  )))
582 582  
583 -
584 -
585 585  **TRI FLAG1** is a combination to show if trigger is set for this part. Totally 1byte as below
586 586  
587 587  (% border="1" style="background-color:#f7faff" %)
... ... @@ -699,11 +699,10 @@
699 699  When device got this command, it will send the MOD6 payload.
700 700  
701 701  
702 -1.
703 -11.
678 +1.
679 +11.
704 704  111. Payload Decoder
705 705  
706 -
707 707  **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/]]
708 708  
709 709  
... ... @@ -712,7 +712,7 @@
712 712  
713 713  
714 714  
715 -1.
690 +1.
716 716  11. ​Configure LT via AT or Downlink
717 717  
718 718  User can configure LT I/O Controller via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
... ... @@ -723,20 +723,17 @@
723 723  
724 724  * **Sensor Related Commands**: These commands are special designed for LT-22222-L.  User can see these commands below:
725 725  
726 -
727 -1.
728 -11.
701 +1.
702 +11.
729 729  111. Common Commands:
730 730  
731 -
732 732  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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
733 733  
734 734  
735 -1.
736 -11.
708 +1.
709 +11.
737 737  111. Sensor related commands:
738 738  
739 -
740 740  ==== Set Transmit Interval ====
741 741  
742 742  Set device uplink interval.
... ... @@ -980,17 +980,17 @@
980 980  |0x00|DO1 set to high
981 981  |0x11|DO1 NO Action
982 982  
983 -
984 984  **Fourth Byte**: Control Method and Ports status:
985 985  
957 +(% border="1" style="background-color:#f7faff" %)
986 986  |Second Byte|Status
987 987  |0x01|DO2 set to low
988 988  |0x00|DO2 set to high
989 989  |0x11|DO2 NO Action
990 990  
991 -
992 992  **Fifth Byte**: Control Method and Ports status:
993 993  
965 +(% border="1" style="background-color:#f7faff" %)
994 994  |Second Byte|Status
995 995  |0x01|DO3 set to low
996 996  |0x00|DO3 set to high
... ... @@ -1043,6 +1043,7 @@
1043 1043  
1044 1044  01: Close ,  00: Open , 11: No action
1045 1045  
1018 +(% border="1" style="background-color:#f7faff" %)
1046 1046  |Downlink Code|RO1|RO2
1047 1047  |03  00  11|Open|No Action
1048 1048  |03  01  11|Close|No Action
... ... @@ -1080,6 +1080,7 @@
1080 1080  
1081 1081  **Third Byte(bb)**: Control Method and Ports status:
1082 1082  
1056 +(% border="1" style="background-color:#f7faff" %)
1083 1083  |Value|Status
1084 1084  |0x11|RO1 and RO2 to NO
1085 1085  |0x10|RO2 to NO, RO1 to NC
... ... @@ -1090,7 +1090,6 @@
1090 1090  |0x02|RO1 to NC, RO2 No Action
1091 1091  |0x12|RO1 to NO, RO2 No Action
1092 1092  
1093 -
1094 1094  **Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
1095 1095  
1096 1096  Device will upload a packet if downlink code executes successfully.
... ... @@ -1192,10 +1192,9 @@
1192 1192  
1193 1193  
1194 1194  
1195 -1.
1168 +1.
1196 1196  11. Integrate with Mydevice
1197 1197  
1198 -
1199 1199  Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
1200 1200  
1201 1201  
... ... @@ -1240,7 +1240,7 @@
1240 1240  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
1241 1241  
1242 1242  
1243 -1.
1215 +1.
1244 1244  11. Interface Detail
1245 1245  111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )
1246 1246  
... ... @@ -1250,8 +1250,8 @@
1250 1250  
1251 1251  
1252 1252  
1253 -1.
1254 -11.
1225 +1.
1226 +11.
1255 1255  111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1256 1256  
1257 1257  The DI port of LT-22222-L can support NPN or PNP output sensor.
... ... @@ -1293,7 +1293,7 @@
1293 1293  
1294 1294  **Example3**: Connect to a 220v high active sensor.公司测试一下
1295 1295  
1296 -Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler 
1268 +Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1297 1297  
1298 1298  * Connect sensor’s output to DI1+ with a serial 50K resistor
1299 1299  * Connect sensor’s GND DI1-.
... ... @@ -1305,8 +1305,8 @@
1305 1305  If sensor output is 220v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1306 1306  
1307 1307  
1308 -1.
1309 -11.
1280 +1.
1281 +11.
1310 1310  111. Digital Output Port: DO1/DO2 /DO3
1311 1311  
1312 1312  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1316,8 +1316,8 @@
1316 1316  
1317 1317  
1318 1318  
1319 -1.
1320 -11.
1291 +1.
1292 +11.
1321 1321  111. Analog Input Interface
1322 1322  
1323 1323  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:
... ... @@ -1349,8 +1349,8 @@
1349 1349  
1350 1350  
1351 1351  
1352 -1.
1353 -11.
1324 +1.
1325 +11.
1354 1354  111. Relay Output
1355 1355  
1356 1356  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
... ... @@ -1364,10 +1364,10 @@
1364 1364  
1365 1365  
1366 1366  
1367 -1.
1339 +1.
1368 1368  11. LEDs Indicators
1369 1369  
1370 -
1342 +(% border="1" style="background-color:#f7faff" %)
1371 1371  |**LEDs**|**Feature**
1372 1372  |**PWR**|Always on if there is power
1373 1373  |**SYS**|After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
... ... @@ -1401,9 +1401,6 @@
1401 1401  |**RO1**|
1402 1402  |**RO2**|
1403 1403  
1404 -
1405 -
1406 -
1407 1407  1. Use AT Command
1408 1408  11. Access AT Command
1409 1409  
... ... @@ -1513,7 +1513,7 @@
1513 1513  
1514 1514  
1515 1515  
1516 -1.
1485 +1.
1517 1517  11. Common AT Command Sequence
1518 1518  111. Multi-channel ABP mode (Use with SX1301/LG308)
1519 1519  
... ... @@ -1536,8 +1536,8 @@
1536 1536  
1537 1537  ATZ
1538 1538  
1539 -1.
1540 -11.
1508 +1.
1509 +11.
1541 1541  111. Single-channel ABP mode (Use with LG01/LG02)
1542 1542  
1543 1543  123456   Enter Password to have AT access.
... ... @@ -1576,11 +1576,10 @@
1576 1576  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1577 1577  
1578 1578  
1579 -1.
1580 -11.
1548 +1.
1549 +11.
1581 1581  111. Change to Class A
1582 1582  
1583 -
1584 1584  If sensor JOINED
1585 1585  
1586 1586  AT+CLASS=A
... ... @@ -1593,8 +1593,7 @@
1593 1593  
1594 1594  1. FAQ
1595 1595  
1596 -
1597 -1.
1564 +1.
1598 1598  11. How to upgrade the image?
1599 1599  
1600 1600  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
... ... @@ -1603,7 +1603,6 @@
1603 1603  * For bug fix
1604 1604  * Change LoRaWAN bands.
1605 1605  
1606 -
1607 1607  Below shows the hardware connection for how to upload an image to the LT:
1608 1608  
1609 1609  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
... ... @@ -1648,13 +1648,13 @@
1648 1648  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1649 1649  
1650 1650  
1651 -1.
1617 +1.
1652 1652  11. How to change the LoRa Frequency Bands/Region?
1653 1653  
1654 1654  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1655 1655  
1656 1656  
1657 -1.
1623 +1.
1658 1658  11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1659 1659  
1660 1660  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
... ... @@ -1697,7 +1697,7 @@
1697 1697  
1698 1698  
1699 1699  
1700 -1.
1666 +1.
1701 1701  11. Can I see counting event in Serial?
1702 1702  
1703 1703  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.
... ... @@ -1713,7 +1713,7 @@
1713 1713  [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]]
1714 1714  
1715 1715  
1716 -1.
1682 +1.
1717 1717  11. Have trouble to upload image.
1718 1718  
1719 1719  See this link for trouble shooting:
... ... @@ -1721,7 +1721,7 @@
1721 1721  [[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]]
1722 1722  
1723 1723  
1724 -1.
1690 +1.
1725 1725  11. Why I can’t join TTN in US915 /AU915 bands?
1726 1726  
1727 1727  It might be about the channels mapping. Please see this link for detail:
... ... @@ -1733,7 +1733,6 @@
1733 1733  
1734 1734  1. Order Info
1735 1735  
1736 -
1737 1737  **For LT-33222-L-XXX or LT-22222-L-XXX:**
1738 1738  
1739 1739  **XXX:**
... ... @@ -1748,7 +1748,6 @@
1748 1748  * **IN865**: LT with frequency bands IN865
1749 1749  * **CN779**: LT with frequency bands CN779
1750 1750  
1751 -
1752 1752  1. Packing Info
1753 1753  
1754 1754  **Package Includes**:
... ... @@ -1758,7 +1758,6 @@
1758 1758  * Bracket for controller x1
1759 1759  * Program cable x 1
1760 1760  
1761 -
1762 1762  **Dimension and weight**:
1763 1763  
1764 1764  * Device Size: 13.5 x 7 x 3 cm
... ... @@ -1766,7 +1766,6 @@
1766 1766  * Package Size / pcs : 14.5 x 8 x 5 cm
1767 1767  * Weight / pcs : 170g
1768 1768  
1769 -
1770 1770  1. Support
1771 1771  
1772 1772  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
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