Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 32.11 >
edited by Xiaoling
on 2022/06/02 15:26
To version < 38.3 >
edited by Xiaoling
on 2022/06/02 16:10
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -76,8 +76,6 @@
76 76  * Automatic RF Sense and CAD with ultra-fast AFC.
77 77  * Packet engine up to 256 bytes with CRC.
78 78  
79 -
80 -
81 81  == 1.3 Features ==
82 82  
83 83  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -89,8 +89,6 @@
89 89  * Support Modbus protocol
90 90  * Support Interrupt uplink (Since hardware version v1.2)
91 91  
92 -
93 -
94 94  == 1.4 Applications ==
95 95  
96 96  * Smart Buildings & Home Automation
... ... @@ -100,8 +100,6 @@
100 100  * Smart Cities
101 101  * Smart Factory
102 102  
103 -
104 -
105 105  == 1.5 Firmware Change log ==
106 106  
107 107  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -142,6 +142,8 @@
142 142  
143 143  (((
144 144  The RS485-LN 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 RS485-LN. It will auto join the network via OTAA.
139 +
140 +
145 145  )))
146 146  
147 147  == 3.2 Example to join LoRaWAN network ==
... ... @@ -150,10 +150,15 @@
150 150  
151 151  [[image:1653268155545-638.png||height="334" width="724"]]
152 152  
149 +
153 153  (((
151 +(((
154 154  The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
153 +)))
155 155  
155 +(((
156 156  485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
157 +)))
157 157  
158 158  [[image:1653268227651-549.png||height="592" width="720"]]
159 159  
... ... @@ -205,6 +205,7 @@
205 205  
206 206  [[image:1652953568895-172.png||height="232" width="724"]]
207 207  
209 +
208 208  == 3.3 Configure Commands to read data ==
209 209  
210 210  (((
... ... @@ -214,6 +214,8 @@
214 214  
215 215  (((
216 216  (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
219 +
220 +
217 217  )))
218 218  )))
219 219  
... ... @@ -221,19 +221,19 @@
221 221  
222 222  To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
223 223  
224 -(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
225 -|(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
226 226  **AT Commands**
227 -)))|(% style="width:285px" %)(((
231 +)))|(% style="width:305px" %)(((
228 228  **Description**
229 -)))|(% style="width:347px" %)(((
233 +)))|(% style="width:346px" %)(((
230 230  **Example**
231 231  )))
232 -|(((
236 +|(% style="width:128px" %)(((
233 233  AT+BAUDR
234 -)))|(% style="width:285px" %)(((
238 +)))|(% style="width:305px" %)(((
235 235  Set the baud rate (for RS485 connection). Default Value is: 9600.
236 -)))|(% style="width:347px" %)(((
240 +)))|(% style="width:346px" %)(((
237 237  (((
238 238  AT+BAUDR=9600
239 239  )))
... ... @@ -242,11 +242,11 @@
242 242  Options: (1200,2400,4800,14400,19200,115200)
243 243  )))
244 244  )))
245 -|(((
249 +|(% style="width:128px" %)(((
246 246  AT+PARITY
247 -)))|(% style="width:285px" %)(((
251 +)))|(% style="width:305px" %)(((
248 248  Set UART parity (for RS485 connection)
249 -)))|(% style="width:347px" %)(((
253 +)))|(% style="width:346px" %)(((
250 250  (((
251 251  AT+PARITY=0
252 252  )))
... ... @@ -255,9 +255,9 @@
255 255  Option: 0: no parity, 1: odd parity, 2: even parity
256 256  )))
257 257  )))
258 -|(((
262 +|(% style="width:128px" %)(((
259 259  AT+STOPBIT
260 -)))|(% style="width:285px" %)(((
264 +)))|(% style="width:305px" %)(((
261 261  (((
262 262  Set serial stopbit (for RS485 connection)
263 263  )))
... ... @@ -265,7 +265,7 @@
265 265  (((
266 266  
267 267  )))
268 -)))|(% style="width:347px" %)(((
272 +)))|(% style="width:346px" %)(((
269 269  (((
270 270  AT+STOPBIT=0 for 1bit
271 271  )))
... ... @@ -300,77 +300,34 @@
300 300  === 3.3.3 Configure read commands for each sampling ===
301 301  
302 302  (((
303 -RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
304 -)))
307 +During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
305 305  
306 -(((
307 -During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
308 -)))
309 -
310 -(((
311 311  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
312 -)))
313 313  
314 -(((
315 315  This section describes how to achieve above goals.
316 -)))
317 317  
318 -(((
319 -During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
320 -)))
313 +During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
321 321  
322 -(((
323 -**Command from RS485-BL to Sensor:**
324 -)))
325 325  
326 -(((
327 -RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
328 -)))
316 +**Each RS485 commands include two parts:**
329 329  
330 -(((
331 -**Handle return from sensors to RS485-BL**:
332 -)))
318 +~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
333 333  
334 -(((
335 -After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
336 -)))
320 +2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
337 337  
338 -* (((
339 -**AT+DATACUT**
340 -)))
322 +3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
341 341  
342 -(((
343 -When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
344 -)))
345 345  
346 -* (((
347 -**AT+SEARCH**
348 -)))
349 -
350 -(((
351 -When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
352 -)))
353 -
354 -(((
355 -**Define wait timeout:**
356 -)))
357 -
358 -(((
359 -Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
360 -)))
361 -
362 -(((
363 363  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
364 -)))
365 365  
366 -**Examples:**
367 367  
368 368  Below are examples for the how above AT Commands works.
369 369  
370 -**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
371 371  
372 -(% border="1" class="table-bordered" %)
373 -|(((
331 +**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
332 +
333 +(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
334 +|(% style="width:496px" %)(((
374 374  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
375 375  
376 376  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
... ... @@ -378,49 +378,15 @@
378 378  **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
379 379  )))
380 380  
381 -(((
382 382  For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
383 -)))
384 384  
385 -(((
386 -In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
387 -)))
344 +In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
388 388  
389 -(((
390 -**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
391 -)))
392 392  
393 -(% border="1" class="table-bordered" %)
394 -|(((
395 -**AT+SEARCHx=aa,xx xx xx xx xx**
396 -
397 -* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
398 -* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
399 -
400 -
401 -)))
402 -
403 -**Examples:**
404 -
405 -~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
406 -
407 -If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
408 -
409 -The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30 31 00 49**
410 -
411 -[[image:1653269403619-508.png]]
412 -
413 -2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
414 -
415 -If we set AT+SEARCH1=2, 1E 56 34+31 00 49
416 -
417 -Device will search the bytes between 1E 56 34 and 31 00 49. So it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30**
418 -
419 -[[image:1653269438444-278.png]]
420 -
421 421  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
422 422  
423 -|(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
424 424  **AT+DATACUTx=a,b,c**
425 425  
426 426  * **a: length for the return of AT+COMMAND**
... ... @@ -428,48 +428,37 @@
428 428  * **c: define the position for valid value.  **
429 429  )))
430 430  
431 -Examples:
358 +**Examples:**
432 432  
433 433  * Grab bytes:
434 434  
435 -[[image:1653269551753-223.png||height="311" width="717"]]
362 +[[image:image-20220602153621-1.png]]
436 436  
364 +
437 437  * Grab a section.
438 438  
439 -[[image:1653269568276-930.png||height="325" width="718"]]
367 +[[image:image-20220602153621-2.png]]
440 440  
369 +
441 441  * Grab different sections.
442 442  
443 -[[image:1653269593172-426.png||height="303" width="725"]]
372 +[[image:image-20220602153621-3.png]]
444 444  
445 -(% style="color:red" %)**Note:**
374 +
375 +)))
446 446  
447 -AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
448 -
449 -Example:
450 -
451 -(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
452 -
453 -(% style="color:red" %)AT+SEARCH1=1,1E 56 34
454 -
455 -(% style="color:red" %)AT+DATACUT1=0,2,1~~5
456 -
457 -(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
458 -
459 -(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
460 -
461 -(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
462 -
463 -[[image:1653269618463-608.png]]
464 -
465 465  === 3.3.4 Compose the uplink payload ===
466 466  
467 467  (((
468 468  Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
381 +
382 +
469 469  )))
470 470  
471 471  (((
472 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
386 +(% style="color:#037691" %)**Examples: AT+DATAUP=0**
387 +
388 +
473 473  )))
474 474  
475 475  (((
... ... @@ -490,8 +490,10 @@
490 490  
491 491  [[image:1653269759169-150.png||height="513" width="716"]]
492 492  
493 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
494 494  
410 +(% style="color:#037691" %)**Examples: AT+DATAUP=1**
411 +
412 +
495 495  Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
496 496  
497 497  Final Payload is
... ... @@ -498,66 +498,61 @@
498 498  
499 499  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
500 500  
501 -1. Battery Info (2 bytes): Battery voltage
502 -1. PAYVER (1 byte): Defined by AT+PAYVER
503 -1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
504 -1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
505 -1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
419 +1. PAYVER: Defined by AT+PAYVER
420 +1. PAYLOAD COUNT: Total how many uplinks of this sampling.
421 +1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
422 +1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
506 506  
507 -[[image:1653269916228-732.png||height="433" width="711"]]
424 +[[image:image-20220602155039-4.png]]
508 508  
509 509  
510 -So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
427 +So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
511 511  
512 -DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
429 +DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
513 513  
514 -DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
431 +DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
515 515  
516 -DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
433 +DATA3=the rest of Valid value of RETURN10= **30**
517 517  
518 -Below are the uplink payloads:
519 519  
520 -[[image:1653270130359-810.png]]
436 +(% style="color:red" %)Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:
521 521  
438 + ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
522 522  
523 -(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
440 + * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
524 524  
525 - ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
442 + * For US915 band, max 11 bytes for each uplink.
526 526  
527 - * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
444 + ~* For all other bands: max 51 bytes for each uplink.
528 528  
529 - * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
530 530  
531 - ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
447 +Below are the uplink payloads:
532 532  
449 +[[image:1654157178836-407.png]]
450 +
451 +
533 533  === 3.3.5 Uplink on demand ===
534 534  
535 -Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
454 +Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
536 536  
537 537  Downlink control command:
538 538  
539 -[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
458 +**0x08 command**: Poll an uplink with current command set in RS485-LN.
540 540  
541 -[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
460 +**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
542 542  
543 543  
544 544  
545 -1.
546 -11.
547 -111. Uplink on Interrupt
464 +=== 3.3.6 Uplink on Interrupt ===
548 548  
549 -Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
466 +RS485-LN support external Interrupt uplink since hardware v1.2 release.
550 550  
551 -AT+INTMOD=0  Disable Interrupt
468 +[[image:1654157342174-798.png]]
552 552  
553 -AT+INTMOD=1  Interrupt trigger by rising or falling edge.
470 +Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
554 554  
555 -AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
556 556  
557 -AT+INTMOD=3  Interrupt trigger by rising edge.
558 -
559 -
560 -1.
473 +1.
561 561  11. Uplink Payload
562 562  
563 563  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -619,15 +619,15 @@
619 619  
620 620  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
621 621  
622 -1.
623 -11.
535 +1.
536 +11.
624 624  111. Common Commands:
625 625  
626 626  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
627 627  
628 628  
629 -1.
630 -11.
542 +1.
543 +11.
631 631  111. Sensor related commands:
632 632  
633 633  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -933,13 +933,13 @@
933 933  
934 934  
935 935  
936 -1.
849 +1.
937 937  11. Buttons
938 938  
939 939  |**Button**|**Feature**
940 940  |**RST**|Reboot RS485-BL
941 941  
942 -1.
855 +1.
943 943  11. +3V3 Output
944 944  
945 945  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -957,7 +957,7 @@
957 957  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
958 958  
959 959  
960 -1.
873 +1.
961 961  11. +5V Output
962 962  
963 963  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -977,13 +977,13 @@
977 977  
978 978  
979 979  
980 -1.
893 +1.
981 981  11. LEDs
982 982  
983 983  |**LEDs**|**Feature**
984 984  |**LED1**|Blink when device transmit a packet.
985 985  
986 -1.
899 +1.
987 987  11. Switch Jumper
988 988  
989 989  |**Switch Jumper**|**Feature**
... ... @@ -1029,7 +1029,7 @@
1029 1029  
1030 1030  
1031 1031  
1032 -1.
945 +1.
1033 1033  11. Common AT Command Sequence
1034 1034  111. Multi-channel ABP mode (Use with SX1301/LG308)
1035 1035  
... ... @@ -1048,8 +1048,8 @@
1048 1048  
1049 1049  ATZ
1050 1050  
1051 -1.
1052 -11.
964 +1.
965 +11.
1053 1053  111. Single-channel ABP mode (Use with LG01/LG02)
1054 1054  
1055 1055  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1124,7 +1124,7 @@
1124 1124  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1125 1125  
1126 1126  
1127 -1.
1040 +1.
1128 1128  11. How to change the LoRa Frequency Bands/Region?
1129 1129  
1130 1130  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1131,7 +1131,7 @@
1131 1131  
1132 1132  
1133 1133  
1134 -1.
1047 +1.
1135 1135  11. How many RS485-Slave can RS485-BL connects?
1136 1136  
1137 1137  The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>path:#downlink_A8]].
... ... @@ -1148,7 +1148,7 @@
1148 1148  
1149 1149  
1150 1150  
1151 -1.
1064 +1.
1152 1152  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1153 1153  
1154 1154  It might about the channels mapping. Please see for detail.
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