Last modified by Mengting Qiu on 2024/04/30 14:27
<
From version < 57.9 >
edited by Xiaoling
on 2022/05/23 14:08
To version < 103.1 >
edited by Edwin Chen
on 2022/05/25 11:53
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Edwin
Content
... ... @@ -1,5 +1,5 @@
1 1  (% style="text-align:center" %)
2 -[[image:image-20220523115324-1.jpeg||height="500" width="500"]]
2 +[[image:image-20220523115324-1.jpeg||height="317" width="317"]]
3 3  
4 4  
5 5  **LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
... ... @@ -6,6 +6,7 @@
6 6  
7 7  
8 8  
9 +
9 9  **Table of Contents：**
10 10  
11 11  {{toc/}}
... ... @@ -12,8 +12,9 @@
12 12  
13 13  
14 14  
15 -= 1.Introduction =
16 16  
17 += 1. Introduction =
18 +
17 17  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
18 18  
19 19  (((
... ... @@ -132,11 +132,7 @@
132 132  
133 133  [[image:image-20220515123819-1.png||height="379" width="317"]]
134 134  
135 -(% border="1" style="background-color:#ffffcc; color:green; width:739px" %)
136 -|**Behavior on ACT**|**Function**|(% style="width:424px" %)**Action**
137 -|**Pressing ACT between 1s < time < 3s**|Test uplink status|(% style="width:424px" %)If LHT65N is already Joined to the LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has an external sensor connected, blue led will blink once. If LHT65N has no external sensor, red led will blink once.
138 -|**Pressing ACT for more than 3s**|Active Device|(% style="width:424px" %)green led will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network. green led will solid turn on for 5 seconds after join in network.
139 -|**Fast press ACT 5 times**|Deactivate Device|(% style="width:424px" %)red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
137 +[[image:image-20220525110604-2.png]]
140 140  
141 141  == 2.3 Example to join LoRaWAN network ==
142 142  
... ... @@ -190,19 +190,42 @@
190 190  
191 191  After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
192 192  
191 +(% border="1" style="background-color:#ffffcc; color:green; width:426px" %)
192 +|(% style="width:97px" %)(((
193 +**Size(bytes)**
194 +)))|(% style="width:39px" %)(((
195 +**2**
196 +)))|(% style="width:100px" %)(((
197 +**2**
198 +)))|(% style="width:77px" %)(((
199 +**2**
200 +)))|(% style="width:47px" %)(((
201 +**1**
202 +)))|(% style="width:51px" %)(((
203 +**4**
204 +)))
205 +|(% style="width:97px" %)(((
206 +**Value**
207 +)))|(% style="width:39px" %)(((
208 +[[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]
209 +)))|(% style="width:100px" %)(((
210 +(((
211 +[[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
212 +)))
213 +)))|(% style="width:77px" %)(((
214 +(((
215 +[[Built-in>>||anchor="H2.4.4Built-inHumidity"]]
216 +)))
193 193  
194 -(% border="1" style="background-color:#ffffcc; color:green; width:428px" %)
195 -|(% style="width:106px" %)**Size(bytes)**|(% style="width:46px" %)**2**|(% style="width:104px" %)**2**|(% style="width:80px" %)**2**|(% style="width:51px" %)**1**|(% style="width:35px" %)**4**
196 -|(% style="width:106px" %)**Value**|(% style="width:46px" %)[[BAT>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.2BAT-BatteryInfo]]|(% style="width:104px" %)(((
197 -[[Built-In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
218 +(((
219 +[[Humidity>>||anchor="H2.4.4Built-inHumidity"]]
220 +)))
221 +)))|(% style="width:47px" %)(((
222 +[[Ext>>||anchor="H2.4.5Ext23"]] #
223 +)))|(% style="width:51px" %)(((
224 +[[Ext value>>||anchor="H2.4.6Extvalue"]]
225 +)))
198 198  
199 -[[Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
200 -)))|(% style="width:80px" %)(((
201 -[[Built-in>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
202 -
203 -[[Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
204 -)))|(% style="width:51px" %)[[Ext>>path:#Extension_Sensor]] #|(% style="width:35px" %)[[Ext value>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]]
205 -
206 206  * The First 6 bytes: has fix meanings for every LHT65N.
207 207  * The 7th byte (EXT #): defines the external sensor model.
208 208  * The 8^^th^^ ~~ 11^^th^^ byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
... ... @@ -221,40 +221,8 @@
221 221  
222 222  These two bytes of BAT include the battery state and the actually voltage
223 223  
224 -(% border="1" style="background-color:#ffffcc; color:green; width:502px" %)
225 -|(% style="width:75px" %)(((
226 -Bit(bit)
227 -)))|(% style="width:259px" %)(((
228 -[15:14]
229 -)))|(% style="width:164px" %)(((
230 -[13:0]
231 -)))
232 -|(% style="width:75px" %)(((
233 -Value
234 -)))|(% style="width:259px" %)(((
235 -(((
236 -BAT Status
237 -)))
245 +[[image:image-20220523152839-18.png]]
238 238  
239 -(((
240 -00(b): Ultra Low ( BAT <= 2.50v)
241 -)))
242 -
243 -(((
244 -01(b): Low  (2.50v <=BAT <= 2.55v)
245 -)))
246 -
247 -(((
248 -10(b): OK   (2.55v <= BAT <=2.65v)
249 -)))
250 -
251 -(((
252 -11(b): Good   (BAT >= 2.65v)
253 -)))
254 -)))|(% style="width:164px" %)(((
255 -Actually BAT voltage
256 -)))
257 -
258 258  [[image:image-20220522235639-1.png||height="139" width="727"]]
259 259  
260 260  Check the battery voltage for LHT65N.
... ... @@ -282,10 +282,7 @@
282 282  
283 283  Bytes for External Sensor:
284 284  
285 -(% border="1" style="background-color:#ffffcc; color:green; width:473px" %)
286 -|(% style="width:139px" %)**EXT # Value**|(% style="width:331px" %)**External Sensor Type**
287 -|(% style="width:139px" %)0x01|(% style="width:331px" %)Sensor E3, Temperature Sensor
288 -|(% style="width:139px" %)0x09|(% style="width:331px" %)Sensor E3, Temperature Sensor, Datalog Mod
274 +[[image:image-20220523152822-17.png]]
289 289  
290 290  === 2.4.6 Ext value ===
291 291  
... ... @@ -314,29 +314,53 @@
314 314  
315 315  Timestamp mode is designed for LHT65N with E3 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
316 316  
317 -(% border="1" style="background-color:#ffffcc; color:green; width:533px" %)
318 -|(% style="width:96px" %)**Size(bytes)**|(% style="width:71px" %)**2**|(% style="width:69px" %)**2**|(% style="width:88px" %)**2**|(% style="width:69px" %)**1**|(% style="width:75px" %)**4**
319 -|(% style="width:96px" %)**Value**|(% style="width:71px" %)[[External temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.2SetExternalSensorMode]]|(% style="width:69px" %)(((
320 -[[Built-In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
303 +(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
304 +|(% style="width:96px" %)(((
305 +**Size(bytes)**
306 +)))|(% style="width:71px" %)(((
307 +**2**
308 +)))|(% style="width:99px" %)(((
309 +**2**
310 +)))|(% style="width:132px" %)(((
311 +**2**
312 +)))|(% style="width:54px" %)(((
313 +**1**
314 +)))|(% style="width:64px" %)(((
315 +**4**
316 +)))
317 +|(% style="width:96px" %)(((
318 +**Value**
319 +)))|(% style="width:71px" %)(((
320 +[[External temperature>>||anchor="H4.2SetExternalSensorMode"]]
321 +)))|(% style="width:99px" %)(((
322 +(((
323 +[[Built-In>>||anchor="H2.4.3Built-inTemperature"]]
324 +)))
321 321  
322 -[[Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
323 -)))|(% style="width:88px" %)(((
326 +(((
327 +[[Temperature>>||anchor="H2.4.3Built-inTemperature"]]
328 +)))
329 +)))|(% style="width:132px" %)(((
330 +(((
324 324  BAT Status &
332 +)))
325 325  
326 -[[Built-in>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
327 -
328 -[[Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
329 -)))|(% style="width:69px" %)Status & Ext|(% style="width:75px" %)(((
330 -[[Unix>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.1SetTransmitIntervalTime]]
331 -
332 -[[Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.1SetTransmitIntervalTime]]
334 +(((
335 +[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
333 333  )))
337 +)))|(% style="width:54px" %)(((
338 +Status & Ext
339 +)))|(% style="width:64px" %)(((
340 +(((
341 +[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
342 +)))
343 +)))
334 334  
335 335  * **Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)**
336 336  
337 -(% border="1" style="background-color:#ffffcc; color:green; width:587px" %)
338 -|Bit(bit)|(% style="width:280px" %)[15:14]|(% style="width:136px" %)[11:0]
339 -|Value|(% style="width:280px" %)(((
347 +(% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
348 +|(% style="width:65px" %)Bit(bit)|(% style="width:267px" %)[15:14]|(% style="width:134px" %)[11:0]
349 +|(% style="width:65px" %)Value|(% style="width:267px" %)(((
340 340  BAT Status
341 341  
342 342  00(b): Ultra Low ( BAT <= 2.50v)
... ... @@ -346,8 +346,8 @@
346 346  10(b): OK   (2.55v <= BAT <=2.65v)
347 347  
348 348  11(b): Good   (BAT >= 2.65v)
349 -)))|(% style="width:136px" %)(((
350 -[[Built-in Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
359 +)))|(% style="width:134px" %)(((
360 +[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
351 351  
352 352  
353 353  )))
... ... @@ -354,11 +354,7 @@
354 354  
355 355  * **Status & Ext Byte**
356 356  
357 -(% border="1" style="background-color:#ffffcc; color:green; width:732px" %)
358 -|(% style="width:128px" %)**Bits**|(% style="width:102px" %)**7**|(% style="width:145px" %)**6**|(% style="width:117px" %)**5**|(% style="width:147px" %)**4**|(% style="width:90px" %)**[3:0]**
359 -|(% style="width:128px" %)**Status & Ext**|(% style="width:102px" %)Not Defined|(% style="width:145px" %)Poll Message Flag|(% style="width:117px" %)Sync time OK|(% style="width:147px" %)Unix Time Request|(% style="width:90px" %)(((
360 -Ext:0b(1001)
361 -)))
367 +[[image:image-20220523152434-16.png]]
362 362  
363 363  * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
364 364  * Sync time OK: 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
... ... @@ -391,14 +391,21 @@
391 391  
392 392  [[image:image-20220523000825-9.png||height="366" width="392"]]
393 393  
394 -[[image:image-20220523000825-10.png||height="432" width="762"]]
400 +[[image:image-20220523000825-10.png||height="413" width="728"]]
395 395  
396 396  == 2.6 Datalog Feature ==
397 397  
398 -This feature is always enabled. When user wants to retrieve the sensor value, he can send a poll command from the IoT platform to ask LHT65N to send the value in the required time slot.
404 +Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LHT65N will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N.
399 399  
400 -=== 2.6.1 Unix TimeStamp ===
406 +=== 2.6.1 Ways to get datalog via LoRaWAN ===
401 401  
408 +There are two methods:
409 +
410 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
411 +1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
412 +
413 +=== 2.6.2 Unix TimeStamp ===
414 +
402 402  LHT65N uses Unix TimeStamp format based on
403 403  
404 404  [[image:image-20220523001219-11.png||height="97" width="627"]]
... ... @@ -412,98 +412,207 @@
412 412  Below is the converter example
413 413  )))
414 414  
415 -[[image:image-20220523001219-12.png||height="302" width="730"]]
428 +[[image:image-20220523001219-12.png||height="298" width="720"]]
416 416  
417 417  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
418 418  
432 +=== 2.6.3 Set Device Time ===
419 419  
420 -=== 2.6.2 Set Device Time ===
421 -
434 +(((
422 422  There are two ways to set device’s time:
436 +)))
423 423  
438 +(((
424 424  **~1. Through LoRaWAN MAC Command (Default settings)**
440 +)))
425 425  
442 +(((
426 426  User need to set SYNCMOD=1 to enable sync time via MAC command.
444 +)))
427 427  
446 +(((
428 428  Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
448 +)))
429 429  
450 +(((
430 430  Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn’t support. If server doesn’t support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.
452 +)))
431 431  
454 +(((
455 +
456 +)))
432 432  
458 +(((
433 433  **2. Manually Set Time**
460 +)))
434 434  
462 +(((
435 435  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
464 +)))
436 436  
466 +=== 2.6.4 Poll sensor value ===
437 437  
438 -=== 2.6.3 Poll sensor value ===
439 -
440 440  User can poll sensor value based on timestamps from the server. Below is the downlink command.
441 441  
470 +[[image:image-20220523152302-15.png]]
442 442  
443 -(% border="1" style="width:454px" %)
444 -|(% style="width:69px" %)1byte|(% style="width:129px" %)4bytes|(% style="width:134px" %)4bytes|(% style="width:119px" %)1byte
445 -|(% style="width:69px" %)31|(% style="width:129px" %)Timestamp start|(% style="width:134px" %)Timestamp end|(% style="width:119px" %)Uplink Interval
446 -
472 +(((
447 447  Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
474 +)))
448 448  
476 +(((
477 +For example, downlink command (% style="display:none" %) (%%)**31 5FC5F350 5FC6 0160 05**
478 +)))
449 449  
450 -For example, downlink command 31 5FC5F350 5FC6 0160 05
451 -
480 +(((
452 452  Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
482 +)))
453 453  
484 +(((
454 454  Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
486 +)))
455 455  
456 456  
457 -=== 2.6.4 Datalog Uplink payload ===
489 +=== 2.6.5 Datalog Uplink payload ===
458 458  
459 459  The Datalog poll reply uplink will use below payload format.
460 460  
493 +(((
494 +**Retrieval data payload**
495 +)))
461 461  
462 -Retrieval data payload
497 +(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
498 +|(% style="width:93px" %)(((
499 +(((
500 +**Size(bytes)**
501 +)))
502 +)))|(% style="width:71px" %)(((
503 +(((
504 +**2**
505 +)))
506 +)))|(% style="width:102px" %)(((
507 +(((
508 +**2**
509 +)))
510 +)))|(% style="width:86px" %)(((
511 +(((
512 +**2**
513 +)))
514 +)))|(% style="width:86px" %)(((
515 +(((
516 +**1**
517 +)))
518 +)))|(% style="width:48px" %)(((
519 +(((
520 +**4**
521 +)))
522 +)))
523 +|(% style="width:93px" %)(((
524 +(((
525 +**Value**
526 +)))
527 +)))|(% style="width:71px" %)(((
528 +(((
529 +[[External sensor data>>||anchor="H2.4.6Extvalue"]]
530 +)))
531 +)))|(% style="width:102px" %)(((
532 +(((
533 +(((
534 +[[Built In>>||anchor="H2.4.3Built-inTemperature"]]
535 +)))
536 +)))
463 463  
464 -(% border="1" %)
465 -|**Size(bytes)**|**2**|**2**|**2**|**1**|**4**
466 -|**Value**|[[External sensor data>>path:#Extension_sensor_value]]|(((
467 -[[Built-In>>path:#SHT20_Temperature]]
538 +(((
539 +(((
540 +[[Temperature>>||anchor="H2.4.3Built-inTemperature"]]
541 +)))
542 +)))
543 +)))|(% style="width:86px" %)(((
544 +(((
545 +(((
546 +[[Built-in>>||anchor="H2.4.4Built-inHumidity"]]
547 +)))
548 +)))
468 468  
469 -[[Temperature>>path:#SHT20_Temperature]]
470 -)))|(((
471 -[[Built-in>>path:#SHT20_Humidity]]
550 +(((
551 +(((
552 +[[Humidity>>||anchor="H2.4.4Built-inHumidity"]]
553 +)))
554 +)))
555 +)))|(% style="width:86px" %)(((
556 +(((
557 +Poll message flag & Ext
558 +)))
559 +)))|(% style="width:48px" %)(((
560 +(((
561 +(((
562 +[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
563 +)))
564 +)))
472 472  
473 -[[Humidity>>path:#SHT20_Humidity]]
474 -)))|[[Poll message flag & Ext>>path:#Poll_EXT]]|(((
475 -[[Unix Time Stamp>>path:#Unix_Time_Stamp]]
476 -
566 +(((
567 +(((
477 477  
478 478  )))
570 +)))
571 +)))
479 479  
480 -Poll message flag & Ext
573 +**Poll message flag & Ext**
481 481  
575 +[[image:image-20220523152208-14.png]]
482 482  
483 -(% border="1" %)
484 -|**Bits**|**7**|**6**|**5**|**4**|**[3:0]**
485 -|**Status & Ext**|Not Defined|Poll Message Flag|Sync time OK|Unix Time Request|(((
486 -Ext:
577 +(((
578 +(((
579 +Poll Message Flag: 1: This message is a poll message reply.
580 +)))
581 +)))
487 487  
488 -0b(1001)
583 +* (((
584 +(((
585 +Poll Message Flag is set to 1.
489 489  )))
587 +)))
588 +* (((
589 +(((
590 +Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
591 +)))
592 +)))
490 490  
491 -Poll Message Flag: 1: This message is a poll message reply.
492 -
493 -* Poll Message Flag is set to 1.
494 -* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
495 -
594 +(((
595 +(((
496 496  For example, in US915 band, the max payload for different DR is:
597 +)))
598 +)))
497 497  
498 -a)      DR0: max is 11 bytes so one entry of data
600 +(((
601 +(((
602 +a) DR0: max is 11 bytes so one entry of data
603 +)))
604 +)))
499 499  
500 -b)      DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
606 +(((
607 +(((
608 +b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
609 +)))
610 +)))
501 501  
502 -c)      DR2: total payload includes 11 entries of data
612 +(((
613 +(((
614 +c) DR2: total payload includes 11 entries of data
615 +)))
616 +)))
503 503  
504 -d)      DR3: total payload includes 22 entries of data.
618 +(((
619 +(((
620 +d) DR3: total payload includes 22 entries of data.
621 +)))
622 +)))
505 505  
624 +(((
625 +(((
506 506  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
627 +)))
628 +)))
507 507  
508 508  
509 509  **Example:**
... ... @@ -510,35 +510,27 @@
510 510  
511 511  If LHT65N has below data inside Flash:
512 512  
513 -Flash Addr   |Unix Time | Ext | BAT voltage|  Value                  
635 +[[image:image-20220523144455-1.png||height="335" width="735"]]
514 514  
515 -80196E0 21/1/19 04:27:03 1 3145 sht_temp=22.00 sht_hum=32.6 ds_temp=327.67
637 +(((
638 +If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
639 +)))
516 516  
517 -80196F0 21/1/19 04:28:57 1 3145 sht_temp=21.90 sht_hum=33.1 ds_temp=327.67
518 -
519 -8019700 21/1/19 04:30:30 1 3145 sht_temp=21.81 sht_hum=33.4 ds_temp=327.67
520 -
521 -8019710 21/1/19 04:40:30 1 3145 sht_temp=21.65 sht_hum=33.7 ds_temp=327.67
522 -
523 -8019720 21/1/19 04:50:30 1 3147 sht_temp=21.55 sht_hum=34.1 ds_temp=327.67
524 -
525 -8019730 21/1/19 05:00:30 1 3149 sht_temp=21.50 sht_hum=34.1 ds_temp=327.67
526 -
527 -8019740 21/1/19 05:10:30 1 3149 sht_temp=21.43 sht_hum=34.6 ds_temp=327.67
528 -
529 -8019750 21/1/19 05:20:30 1 3151 sht_temp=21.35 sht_hum=34.9 ds_temp=327.67
530 -
531 -
532 -If user sends below downlink command:
533 -
534 -3160065F9760066DA705
535 -
641 +(((
536 536   Where : Start time: 60065F97 = time 21/1/19 04:27:03
643 +)))
537 537  
645 +(((
538 538   Stop time 60066DA7= time 21/1/19 05:27:03
647 +)))
539 539  
649 +(((
650 +
651 +)))
540 540  
653 +(((
541 541  LHT65N will uplink this payload.
655 +)))
542 542  
543 543  [[image:image-20220523001219-13.png||height="421" width="727"]]
544 544  
... ... @@ -561,32 +561,51 @@
561 561  
562 562  == 2.7 Alarm Mode ==
563 563  
564 -Alarm mode feature is added since firmware v1.5. When device is in Alarm mode, it will check the built-in sensor temperature in a short interval. If the temperature exceeds the pre-configure range, it will send an uplink immediately.
678 +When device is in Alarm mode, it will check the built-in sensor temperature in a short interval. If the temperature exceeds the pre-configure range, it will send an uplink immediately.
565 565  
680 +(((
681 +(% style="color:red" %)Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
682 +)))
566 566  
567 -Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
684 +**AT Commands for Alarm mode:**
568 568  
569 -
570 -AT Commands for Alarm mode:
571 -
686 +(% class="box infomessage" %)
687 +(((
688 +(((
572 572  **AT+WMOD=1**: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
573 -
574 574  **AT+CITEMP=1**: The interval to check the temperature for Alarm. (Unit: minute)
691 +)))
692 +)))
575 575  
694 +(% class="wikigeneratedid" %)
695 +== ==
576 576  
577 -
578 578  == 2.8 LED Indicator ==
579 579  
699 +(((
580 580  The LHT65N has a triple color LED which for easy shows different stage.
701 +)))
581 581  
703 +(((
582 582  While pressing ACT button, the LED will work as per LED status with ACT button.
705 +)))
583 583  
707 +(((
584 584  In a normal working state:
709 +)))
585 585  
586 -* For each uplink, the BLUE LED or RED LED will blink once.
587 -* BLUE LED when an external sensor is connected
588 -* RED LED when an external sensor is not connected
589 -* For each success downlink, the PURPLE LED will blink once
711 +* (((
712 +For each uplink, the BLUE LED or RED LED will blink once.
713 +)))
714 +* (((
715 +BLUE LED when an external sensor is connected
716 +)))
717 +* (((
718 +RED LED when an external sensor is not connected
719 +)))
720 +* (((
721 +For each success downlink, the PURPLE LED will blink once
722 +)))
590 590  
591 591  ----
592 592  
... ... @@ -612,29 +612,55 @@
612 612  
613 613  = 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
614 614  
748 +(((
615 615  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
750 +)))
616 616  
617 -* AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
618 -* LoRaWAN Downlink instruction for different platforms:
752 +* (((
753 +AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
754 +)))
755 +* (((
756 +LoRaWAN Downlink instruction for different platforms:
757 +)))
619 619  
759 +(((
620 620  [[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server>>url:http://wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server]]
761 +)))
621 621  
763 +(((
622 622  There are two kinds of commands to configure LHT65N, they are:
765 +)))
623 623  
624 -* **General Commands**.
767 +(((
768 +(% style="color:#4f81bd" %)* **General Commands**.
769 +)))
625 625  
771 +(((
626 626  These commands are to configure:
773 +)))
627 627  
628 -* General system settings like: uplink interval.
629 -* LoRaWAN protocol & radio-related commands.
775 +* (((
776 +General system settings like: uplink interval.
777 +)))
778 +* (((
779 +LoRaWAN protocol & radio-related commands.
780 +)))
630 630  
782 +(((
631 631  They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki:
784 +)))
632 632  
786 +(((
633 633  [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
788 +)))
634 634  
635 -* **Commands special design for LHT65N**
790 +(((
791 +(% style="color:#4f81bd" %)* **Commands special design for LHT65N**
792 +)))
636 636  
794 +(((
637 637  These commands are only valid for LHT65N, as below:
796 +)))
638 638  
639 639  == 4.1 Set Transmit Interval Time ==
640 640  
... ... @@ -642,29 +642,26 @@
642 642  
643 643  **AT Command: AT+TDC**
644 644  
645 -(% border="1" %)
646 -|**Command Example**|**Function**|**Response**
647 -|AT+TDC?|Show current transmit Interval|(((
648 -30000
804 +[[image:image-20220523150701-2.png]]
649 649  
650 -OK
651 -
652 -the interval is 30000ms = 30s
806 +(((
807 +**Downlink Command: 0x01**
653 653  )))
654 -|AT+TDC=60000|Set Transmit Interval|(((
655 -OK
656 656  
657 -Set transmit interval to 60000ms = 60 seconds
810 +(((
811 +Format: Command Code (0x01) followed by 3 bytes time value.
658 658  )))
659 659  
660 -**Downlink Command: 0x01**
661 -
662 -Format: Command Code (0x01) followed by 3 bytes time value.
663 -
814 +(((
664 664  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
816 +)))
665 665  
666 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
667 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
818 +* (((
819 +**Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
820 +)))
821 +* (((
822 +**Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
823 +)))
668 668  
669 669  == 4.2 Set External Sensor Mode ==
670 670  
... ... @@ -672,27 +672,29 @@
672 672  
673 673  **AT Command: AT+EXT**
674 674  
675 -(% border="1" %)
676 -|**Command Example**|**Function**|**Response**
677 -|AT+EXT?|Get current external sensor mode|(((
678 -1
831 +[[image:image-20220523150759-3.png]]
679 679  
680 -OK
681 -
682 -External Sensor mode =1
833 +(((
834 +**Downlink Command: 0xA2**
683 683  )))
684 -|AT+EXT=1|(% colspan="2" %)Set external sensor mode to 1
685 -|AT+EXT=9|(% colspan="2" %)Set to external DS18B20 with timestamp
686 686  
687 -**Downlink Command: 0xA2**
688 -
837 +(((
689 689  Total bytes: 2 ~~ 5 bytes
839 +)))
690 690  
691 -Example:
841 +(((
842 +**Example:**
843 +)))
692 692  
693 -* 0xA201: Set external sensor type to E1
694 -* 0xA209: Same as AT+EXT=9
695 -* 0xA20702003c,Same as AT+SETCNT=60
845 +* (((
846 +0xA201: Set external sensor type to E1
847 +)))
848 +* (((
849 +0xA209: Same as AT+EXT=9
850 +)))
851 +* (((
852 +0xA20702003c,Same as AT+SETCNT=60
853 +)))
696 696  
697 697  == 4.3 Enable/Disable uplink Temperature probe ID ==
698 698  
... ... @@ -703,17 +703,14 @@
703 703  
704 704  PID is default set to disable (0)
705 705  
706 -
707 707  **AT Command:**
708 708  
709 -(% border="1" %)
710 -|**Command Example**|**Function**|**Response**
711 -|AT+PID=1|Enable PID uplink|OK
866 +[[image:image-20220523150928-4.png]]
712 712  
713 713  **Downlink Command:**
714 714  
715 -* 0xA800     à AT+PID=0
716 -* 0xA801     à AT+PID=1
870 +* 0xA800  **~-~->** AT+PID=0
871 +* 0xA801     **~-~->** AT+PID=1
717 717  
718 718  == 4.4 Set Password ==
719 719  
... ... @@ -721,19 +721,15 @@
721 721  
722 722  **AT Command: AT+PWORD**
723 723  
724 -(% border="1" %)
725 -|**Command Example**|**Function**|**Response**
726 -|AT+PWORD=?|Show password|(((
727 -123456
879 +[[image:image-20220523151052-5.png]]
728 728  
729 -
730 -OK
881 +(((
882 +**Downlink Command:**
731 731  )))
732 -|AT+PWORD=999999|Set password|OK
733 733  
734 -**Downlink Command:**
735 -
885 +(((
736 736  No downlink command for this feature.
887 +)))
737 737  
738 738  == 4.5 Quit AT Command ==
739 739  
... ... @@ -741,15 +741,12 @@
741 741  
742 742  **AT Command: AT+DISAT**
743 743  
744 -(% border="1" %)
745 -|**Command Example**|**Function**|**Response**
746 -|AT+DISAT|Quit AT Commands mode|OK
895 +[[image:image-20220523151132-6.png]]
747 747  
748 748  **Downlink Command:**
749 749  
750 750  No downlink command for this feature.
751 751  
752 -
753 753  == 4.6 Set to sleep mode ==
754 754  
755 755  Feature: Set device to sleep mode
... ... @@ -756,15 +756,8 @@
756 756  
757 757  **AT Command: AT+SLEEP**
758 758  
759 -(% border="1" %)
760 -| | |
761 -|**Command Example**|**Function**|**Response**
762 -|AT+SLEEP|Set to sleep mode|(((
763 -Clear all stored sensor data…
907 +[[image:image-20220523151218-7.png]]
764 764  
765 -OK
766 -)))
767 -
768 768  **Downlink Command:**
769 769  
770 770  * There is no downlink command to set to Sleep mode.
... ... @@ -775,14 +775,8 @@
775 775  
776 776  **AT Command:**
777 777  
778 -(% border="1" %)
779 -|**Command Example**|**Function**
780 -|AT+TIMESTAMP=1611104352|(((
781 -OK
919 +[[image:image-20220523151253-8.png]]
782 782  
783 -Set System time to 2021-01-20 00:59:12
784 -)))
785 -
786 786  **Downlink Command:**
787 787  
788 788  0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
... ... @@ -789,15 +789,19 @@
789 789  
790 790  == 4.8 Set Time Sync Mode ==
791 791  
927 +(((
792 792  Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
929 +)))
793 793  
931 +(((
794 794  SYNCMOD is set to 1 by default. If user want to set a different time from LoRaWAN server, user need to set this to 0.
933 +)))
795 795  
796 -
935 +(((
797 797  **AT Command:**
937 +)))
798 798  
799 -|**Command Example**|**Function**
800 -|AT+SYNCMOD=1|Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
939 +[[image:image-20220523151336-9.png]]
801 801  
802 802  **Downlink Command:**
803 803  
... ... @@ -811,9 +811,7 @@
811 811  
812 812  **AT Command:**
813 813  
814 -(% border="1" %)
815 -|**Command Example**|**Function**
816 -|AT+SYNCTDC=0x0A|Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
953 +[[image:image-20220523151411-10.png]]
817 817  
818 818  **Downlink Command:**
819 819  
... ... @@ -825,51 +825,8 @@
825 825  
826 826  **AT Command: AT+PDTA**
827 827  
828 -(% border="1" %)
829 -|**Command Example**|**Response**
830 -|(((
831 -AT+PDTA=1,3
965 +[[image:image-20220523151450-11.png]]
832 832  
833 -
834 -
835 -Print page 1 to 3
836 -)))|(((
837 -8019500 19/6/26 16:48 1 2992 sht_temp=28.21 sht_hum=71.5 ds_temp=27.31
838 -
839 -8019510 19/6/26 16:53 1 2994 sht_temp=27.64 sht_hum=69.3 ds_temp=26.93
840 -
841 -8019520 19/6/26 16:58 1 2996 sht_temp=28.39 sht_hum=72.0 ds_temp=27.06
842 -
843 -8019530 19/6/26 17:03 1 2996 sht_temp=27.97 sht_hum=70.4 ds_temp=27.12
844 -
845 -8019540 19/6/26 17:08 1 2996 sht_temp=27.80 sht_hum=72.9 ds_temp=27.06
846 -
847 -8019550 19/6/26 17:13 1 2998 sht_temp=27.30 sht_hum=72.4 ds_temp=26.68
848 -
849 -8019560 19/6/26 17:22 1 2992 sht_temp=26.27 sht_hum=62.3 ds_temp=26.56
850 -
851 -8019570
852 -
853 -8019580
854 -
855 -8019590
856 -
857 -80195A0
858 -
859 -80195B0
860 -
861 -80195C0
862 -
863 -80195D0
864 -
865 -80195E0
866 -
867 -80195F0
868 -
869 -
870 -OK
871 -)))
872 -
873 873  **Downlink Command:**
874 874  
875 875  No downlink commands for feature
... ... @@ -880,54 +880,41 @@
880 880  
881 881  **AT Command: AT+PLDTA**
882 882  
883 -(% border="1" %)
884 -|**Command Example**|**Response**
885 -|(((
886 -AT+PLDTA=5
977 +[[image:image-20220523151524-12.png]]
887 887  
979 +**Downlink Command:**
888 888  
981 +No downlink commands for feature
889 889  
890 -Print last 5 entries
891 -)))|(((
892 -Stop Tx and RTP events when read sensor data
983 +== 4.12 Clear Flash Record ==
893 893  
894 -1 19/6/26 13:59 1 3005 sht_temp=27.09 sht_hum=79.5 ds_temp=26.75
985 +Feature: Clear flash storage for data log feature.
895 895  
896 -2 19/6/26 14:04 1 3007 sht_temp=26.65 sht_hum=74.8 ds_temp=26.43
987 +**AT Command: AT+CLRDTA**
897 897  
898 -3 19/6/26 14:09 1 3007 sht_temp=26.91 sht_hum=77.9 ds_temp=26.56
989 +[[image:image-20220523151556-13.png]]
899 899  
900 -4 19/6/26 14:15 1 3007 sht_temp=26.93 sht_hum=76.7 ds_temp=26.75
991 +**Downlink Command: 0xA3**
901 901  
902 -5 19/6/26 14:20 1 3007 sht_temp=26.78 sht_hum=76.6 ds_temp=26.43
993 +* Example: 0xA301 ~/~/Same as AT+CLRDTA
903 903  
904 -Start Tx and RTP events
995 +== 4.13 Auto Send None-ACK messages ==
905 905  
906 -OK
907 -)))
997 +Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
908 908  
909 -**Downlink Command:**
910 910  
911 -No downlink commands for feature
1000 +**AT Command: AT+PNACKMD**
912 912  
913 -== 4.12 Clear Flash Record ==
1002 +The default factory setting is 0
914 914  
915 -Feature: Clear flash storage for data log feature.
1004 +(% border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1005 +|=(% style="width: 171px;" %)**Command Example**|=(% style="width: 219px;" %)**Function**|=(% style="width: 119px;" %)**Response**
1006 +|(% style="width:171px" %)AT+PNACKMD=1|(% style="width:219px" %)Poll None-ACK message|(% style="width:119px" %)OK
916 916  
917 -**AT Command: AT+CLRDTA**
1008 +**Downlink Command: 0x34**
918 918  
919 -(% border="1" %)
920 -|**Command Example**|**Function**|**Response**
921 -|AT+CLRDTA|Clear date record|(((
922 -Clear all stored sensor data…
1010 +* Example: 0x3401 ~/~/Same as AT+PNACKMD=1
923 923  
924 -OK
925 -)))
926 -
927 -**Downlink Command: 0xA3**
928 -
929 -* Example: 0xA301 ~/~/Same as AT+CLRDTA
930 -
931 931  = 5. Battery & How to replace =
932 932  
933 933  == 5.1 Battery Type ==
... ... @@ -934,11 +934,15 @@
934 934  
935 935  LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
936 936  
1018 +(((
937 937  The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
938 938  [[image:image-20220515075034-1.png||height="208" width="644"]]
1021 +)))
939 939  
1023 +(((
940 940  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
941 941  
1026 +)))
942 942  
943 943  == 5.2 Replace Battery ==
944 944  
... ... @@ -948,47 +948,97 @@
948 948  
949 949  == 5.3 Battery Life Analyze ==
950 950  
1036 +(((
951 951  Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
952 952  https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
1039 +)))
953 953  
954 954  = 6. Order Info =
955 955  
956 -Part Number: (% class="mark" %)**LHT65N-XX**
1043 +(((
1044 +Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY**
1045 +)))
957 957  
958 -**XX**: The default frequency band
1047 +(((
1048 +(% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1049 +)))
959 959  
960 -* **AS923**: LoRaWAN AS923 band
961 -* **AU915**: LoRaWAN AU915 band
962 -* **EU433**: LoRaWAN EU433 band
963 -* **EU868**: LoRaWAN EU868 band
964 -* **KR920**: LoRaWAN KR920 band
965 -* **US915**: LoRaWAN US915 band
966 -* **IN865**: LoRaWAN IN865 band
967 -* **CN470**: LoRaWAN CN470 band
1051 +* (((
1052 +(% style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1053 +)))
1054 +* (((
1055 +(% style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1056 +)))
1057 +* (((
1058 +(% style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1059 +)))
1060 +* (((
1061 +(% style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1062 +)))
1063 +* (((
1064 +(% style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1065 +)))
1066 +* (((
1067 +(% style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1068 +)))
1069 +* (((
1070 +(% style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1071 +)))
1072 +* (((
1073 +(% style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1074 +)))
968 968  
969 -**YY**: Sensor Accessories
1076 +(((
1077 +(% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1078 +)))
970 970  
971 -* **E3**: External Temperature Probe
1080 +* (((
1081 +(% style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1082 +)))
972 972  
973 973  = 7. Packing Info =
974 974  
1086 +(((
975 975  **Package Includes**:
1088 +)))
976 976  
977 -* LHT65N Temperature & Humidity Sensor x 1
978 -* Program cable x 1
979 -* Optional external sensor
1090 +* (((
1091 +LHT65N Temperature & Humidity Sensor x 1
1092 +)))
1093 +* (((
1094 +Program cable x 1
1095 +)))
1096 +* (((
1097 +Optional external sensor
1098 +)))
980 980  
1100 +(((
981 981  **Dimension and weight**:
1102 +)))
982 982  
983 -* Device Size:  13.5 x 7 x 3 cm
984 -* Device Weight: 105g
985 -* Package Size / pcs : 14.5 x 8 x 5 cm
986 -* Weight / pcs : 170g
1104 +* (((
1105 +Device Size:  13.5 x 7 x 3 cm
1106 +)))
1107 +* (((
1108 +Device Weight: 105g
1109 +)))
1110 +* (((
1111 +Package Size / pcs : 14.5 x 8 x 5 cm
1112 +)))
1113 +* (((
1114 +Weight / pcs : 170g
1115 +)))
987 987  
988 988  = 8. FCC Warning =
989 989  
1119 +(((
990 990  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1121 +)))
991 991  
1123 +(((
992 992  (1) This device may not cause harmful interference；
1125 +)))
993 993  
1127 +(((
994 994  (2) this device must accept any interference received, including interference that may cause undesired operation.
1129 +)))
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