Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 109.2 >
edited by Xiaoling
on 2022/11/21 11:37
To version < 118.6 >
edited by Xiaoling
on 2023/05/17 11:04
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -15,7 +15,6 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 -
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
... ... @@ -27,7 +27,7 @@
27 27  )))
28 28  
29 29  (((
30 -The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
29 +The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
31 31  )))
32 32  
33 33  (((
... ... @@ -54,7 +54,6 @@
54 54  
55 55  )))
56 56  
57 -
58 58  == 1.2  Specifications ==
59 59  
60 60  (((
... ... @@ -171,7 +171,6 @@
171 171  Packet engine up to 256 bytes with CRC.
172 172  
173 173  
174 -
175 175  
176 176  )))
177 177  
... ... @@ -179,33 +179,43 @@
179 179  
180 180  
181 181  * LoRaWAN Class A & Class C protocol
179 +
182 182  * Optional Customized LoRa Protocol
181 +
183 183  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
183 +
184 184  * AT Commands to change parameters
185 +
185 185  * Remote configure parameters via LoRa Downlink
187 +
186 186  * Firmware upgradable via program port
189 +
187 187  * Counting
188 188  
189 -
190 -
191 191  == 1.4  Applications ==
192 192  
193 193  
194 194  * Smart Buildings & Home Automation
196 +
195 195  * Logistics and Supply Chain Management
198 +
196 196  * Smart Metering
200 +
197 197  * Smart Agriculture
202 +
198 198  * Smart Cities
204 +
199 199  * Smart Factory
200 200  
201 -
202 -
203 203  == 1.5 Hardware Variants ==
204 204  
205 205  
206 -(% border="1" style="background-color:#f7faff; width:500px" %)
207 -|(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
208 -|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
210 +(% border="1" style="background-color:#f2f2f2; width:500px" %)
211 +|(% style="background-color:#d9e2f3; color:#0070c0; width:103px" %)**Model**|(% style="background-color:#d9e2f3; color:#0070c0; width:131px" %)**Photo**|(% style="background-color:#d9e2f3; color:#0070c0; width:334px" %)**Description**
212 +|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
213 +(% style="text-align:center" %)
214 +[[image:image-20230424115112-1.png||height="106" width="58"]]
215 +)))|(% style="width:334px" %)(((
209 209  * 2 x Digital Input (Bi-direction)
210 210  * 2 x Digital Output
211 211  * 2 x Relay Output (5A@250VAC / 30VDC)
... ... @@ -214,8 +214,6 @@
214 214  * 1 x Counting Port
215 215  )))
216 216  
217 -
218 -
219 219  = 2. Power ON Device =
220 220  
221 221  
... ... @@ -272,7 +272,7 @@
272 272  Each LT is shipped with a sticker with the default device EUI as below:
273 273  )))
274 274  
275 -[[image:1653297924498-393.png]]
280 +[[image:image-20230425173427-2.png||height="246" width="530"]]
276 276  
277 277  
278 278  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
... ... @@ -297,7 +297,6 @@
297 297  [[image:1653298044601-602.png||height="405" width="709"]]
298 298  
299 299  
300 -
301 301  == 3.3 Uplink Payload ==
302 302  
303 303  
... ... @@ -310,24 +310,42 @@
310 310  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
311 311  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
312 312  
313 -
314 -
315 315  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
316 316  
317 317  
318 318  (((
319 -The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
321 +The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
322 +
323 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
324 +|Size(bytes)(% style="display:none" %) |2|2|2|2|1|1|1
325 +|Value|(((
326 +AVI1
327 +voltage
328 +)))|(((
329 +AVI2
330 +voltage
331 +)))|(((
332 +ACI1
333 +Current
334 +)))|(((
335 +ACI2
336 +Current
337 +)))|DIDORO*|(((
338 +Reserve
339 +)))|MOD
320 320  )))
321 321  
322 -[[image:image-20220523174024-3.png]]
323 323  
324 324  (((
325 325  
326 326  
327 327  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
347 +
348 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
349 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
350 +|RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
328 328  )))
329 329  
330 -[[image:image-20220523174254-4.png]]
331 331  
332 332  * RO is for relay. ROx=1 : close，ROx=0 always open.
333 333  * DI is for digital input. DIx=1: high or float, DIx=0: low.
... ... @@ -368,8 +368,6 @@
368 368  ** DO1 is high in case there is load between DO1 and V+.
369 369  ** DO1 LED is off in both case
370 370  
371 -
372 -
373 373  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
374 374  
375 375  
... ... @@ -379,18 +379,28 @@
379 379  
380 380  (((
381 381  Total : 11 bytes payload
382 -)))
383 383  
384 -[[image:image-20220523180452-3.png]]
403 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
404 +|Size(bytes)|4|4|1|1|1
405 +|Value|COUNT1|COUNT2 |DIDORO*|(((
406 +Reserve
385 385  
408 +
409 +)))|MOD
410 +)))
386 386  
387 387  (((
413 +
414 +
388 388  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
389 -)))
390 390  
391 -[[image:image-20220523180506-4.png]]
417 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
418 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
419 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
392 392  
393 -* RO is for relay. ROx=1 : close，ROx=0 always open.
421 +RO is for relay. ROx=1 : close，ROx=0 always open.
422 +)))
423 +
394 394  * FIRST: Indicate this is the first packet after join network.
395 395  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
396 396  
... ... @@ -448,15 +448,24 @@
448 448  
449 449  **LT22222-L**: This mode the DI1 is used as a counting pin.
450 450  
451 -[[image:image-20220523181246-5.png]]
481 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
482 +|Size(bytes)|4|2|2|1|1|1
483 +|Value|COUNT1|(((
484 +ACI1 Current
485 +)))|(((
486 +ACI2 Current
487 +)))|DIDORO*|Reserve|MOD
452 452  
453 453  (((
454 454  
455 455  
456 456  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
493 +
494 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
495 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
496 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
457 457  )))
458 458  
459 -[[image:image-20220523181301-6.png]]
460 460  
461 461  * RO is for relay. ROx=1 : close，ROx=0 always open.
462 462  * FIRST: Indicate this is the first packet after join network.
... ... @@ -498,16 +498,26 @@
498 498  
499 499  (((
500 500  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
540 +
541 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
542 +|Size(bytes)|4|4|1|1|1
543 +|Value|COUNT1|AVI1 Counting|DIDORO*|(((
544 +Reserve
545 +
546 +
547 +)))|MOD
501 501  )))
502 502  
503 -[[image:image-20220523181903-8.png]]
504 504  
505 505  
506 506  (((
507 507  (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
554 +
555 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
556 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
557 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
508 508  )))
509 509  
510 -[[image:image-20220523181727-7.png]]
511 511  
512 512  * RO is for relay. ROx=1 : close，ROx=0 always open.
513 513  * FIRST: Indicate this is the first packet after join network.
... ... @@ -562,12 +562,30 @@
562 562  
563 563  **LT22222-L**: This mode the DI1 is used as a counting pin.
564 564  
565 -[[image:image-20220523182334-9.png]]
614 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
615 +|Size(bytes)|2|2|2|2|1|1|1
616 +|Value|(((
617 +AVI1
618 +voltage
619 +)))|(((
620 +AVI2
621 +voltage
622 +)))|(((
623 +ACI1
624 +Current
625 +)))|COUNT1|DIDORO*|(((
626 +Reserve
627 +)))|MOD
566 566  
629 +
567 567  (((
568 568  
569 569  
570 570  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
634 +
635 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
636 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
637 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
571 571  )))
572 572  
573 573  * RO is for relay. ROx=1 : close，ROx=0 always open.
... ... @@ -658,7 +658,6 @@
658 658  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
659 659  
660 660  
661 -
662 662  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
663 663  
664 664  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -693,13 +693,55 @@
693 693  
694 694  MOD6 Payload : total 11 bytes payload
695 695  
696 -[[image:image-20220524085923-1.png]]
762 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
763 +|Size(bytes)|1|1|1|6|1|1
764 +|Value|(((
765 +TRI_A
766 +FLAG
767 +)))|(((
768 +TRI_A
769 +Status
770 +)))|(((
771 +TRI_DI
772 +FLAG+STA
773 +)))|Reserve|Enable/Disable MOD6|(((
774 +MOD
775 +(6)
776 +)))
697 697  
698 698  
779 +
699 699  (% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
700 700  
701 -[[image:image-20220524090106-2.png]]
782 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
783 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
784 +|(((
785 +AV1_
786 +LOW
787 +)))|(((
788 +AV1_
789 +HIGH
790 +)))|(((
791 +AV2_
792 +LOW
793 +)))|(((
794 +AV2_
795 +HIGH
796 +)))|(((
797 +AC1_
798 +LOW
799 +)))|(((
800 +AC1_
801 +HIGH
802 +)))|(((
803 +AC2_
804 +LOW
805 +)))|(((
806 +AC2_
807 +HIGH
808 +)))
702 702  
810 +
703 703  * Each bits shows if the corresponding trigger has been configured.
704 704  
705 705  **Example:**
... ... @@ -719,7 +719,6 @@
719 719  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
720 720  
721 721  
722 -
723 723  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
724 724  
725 725  [[image:image-20220524090456-4.png]]
... ... @@ -733,7 +733,6 @@
733 733  00000101: Means both DI1 and DI2 trigger are enabled.
734 734  
735 735  
736 -
737 737  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
738 738  
739 739  Downlink command to poll MOD6 status:
... ... @@ -769,8 +769,6 @@
769 769  
770 770  * (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
771 771  
772 -
773 -
774 774  === 3.4.1 Common Commands ===
775 775  
776 776  
... ... @@ -856,7 +856,6 @@
856 856  
857 857  
858 858  
859 -
860 860  ==== 3.4.2.5 Poll trigger settings ====
861 861  
862 862  
... ... @@ -939,7 +939,7 @@
939 939  
940 940  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 02 ):**
941 941  
942 -(% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG1=aa,0x(bb cc)
1045 +(% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG2=aa,0x(bb cc)
943 943  
944 944  
945 945  
... ... @@ -1071,8 +1071,9 @@
1071 1071  
1072 1072   Latching time. Unit: ms
1073 1073  
1074 -Note:
1075 1075  
1178 +(% style="color:red" %)**Note: **
1179 +
1076 1076   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1077 1077  
1078 1078   Before Firmwre v1.6.0 the latch time only suport 2 bytes.
... ... @@ -1101,7 +1101,7 @@
1101 1101  
1102 1102  
1103 1103  
1104 -==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1208 +==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1105 1105  
1106 1106  
1107 1107  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1123,7 +1123,7 @@
1123 1123  )))
1124 1124  
1125 1125  (((
1126 -[[image:image-20220524093724-9.png]]
1230 +[[image:image-20230426161322-1.png]]
1127 1127  )))
1128 1128  
1129 1129  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
... ... @@ -1130,7 +1130,6 @@
1130 1130  
1131 1131  
1132 1132  
1133 -
1134 1134  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1135 1135  
1136 1136  
... ... @@ -1162,8 +1162,9 @@
1162 1162  
1163 1163  (% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1164 1164  
1165 -Note:
1166 1166  
1269 +(% style="color:red" %)**Note:**
1270 +
1167 1167   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1168 1168  
1169 1169   Before Firmwre v1.6.0 the latch time only suport 2 bytes.
... ... @@ -1174,7 +1174,7 @@
1174 1174  
1175 1175  **Example payload:**
1176 1176  
1177 -**~1. 05 01 11 07 D**
1281 +**~1. 05 01 11 07 D0**
1178 1178  
1179 1179  Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1180 1180  
... ... @@ -1309,7 +1309,6 @@
1309 1309  
1310 1310  
1311 1311  
1312 -
1313 1313  ==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1314 1314  
1315 1315  
... ... @@ -1326,7 +1326,6 @@
1326 1326  
1327 1327  
1328 1328  
1329 -
1330 1330  ==== 3.4.2.25 Copy downlink to uplink ====
1331 1331  
1332 1332  
... ... @@ -1480,8 +1480,6 @@
1480 1480  
1481 1481  (((
1482 1482  
1483 -
1484 -
1485 1485  )))
1486 1486  
1487 1487  (((
... ... @@ -1513,8 +1513,6 @@
1513 1513  
1514 1514  (((
1515 1515  
1516 -
1517 -
1518 1518  )))
1519 1519  
1520 1520  (((
... ... @@ -1548,9 +1548,9 @@
1548 1548  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1549 1549  
1550 1550  
1551 -**NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
1649 +(% style="color:blue" %)**NPN output**(%%): GND or Float. Max voltage can apply to output pin is 36v.
1552 1552  
1553 -Note: DO pins go to float when device is power off.
1651 +(% style="color:red" %)**Note: DO pins go to float when device is power off.**
1554 1554  
1555 1555  [[image:1653357531600-905.png]]
1556 1556  
... ... @@ -1572,9 +1572,9 @@
1572 1572  
1573 1573  (% style="color:blue" %)**Specifications of the wind speed sensor:**
1574 1574  
1575 -**Red:  12~~24v**
1673 +(% style="color:red" %)**Red:  12~~24v**
1576 1576  
1577 -**Yellow:  4~~20mA**
1675 +(% style="color:#ffc000" %)**Yellow:  4~~20mA**
1578 1578  
1579 1579  **Black:  GND**
1580 1580  
... ... @@ -1607,7 +1607,6 @@
1607 1607  [[image:image-20220524100748-11.png]]
1608 1608  
1609 1609  
1610 -
1611 1611  = 4. Use AT Command =
1612 1612  
1613 1613  == 4.1 Access AT Command ==
... ... @@ -1938,7 +1938,7 @@
1938 1938  **3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?
1939 1939  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1940 1940  
1941 -**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5**
2038 +**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5.**
1942 1942  
1943 1943  
1944 1944  )))
... ... @@ -1951,7 +1951,6 @@
1951 1951  
1952 1952  )))
1953 1953  
1954 -
1955 1955  === 4.2.3 Change to Class A ===
1956 1956  
1957 1957  
... ... @@ -1963,11 +1963,19 @@
1963 1963  )))
1964 1964  
1965 1965  
1966 -= 5. FAQ =
2062 += 5. Case Study =
1967 1967  
1968 -== 5.1 How to upgrade the image? ==
2064 +== 5.1 Counting how many objects pass in Flow Line ==
1969 1969  
1970 1970  
2067 +Reference Link: [[How to set up to count objects pass in flow line>>How to set up to count objects pass in flow line]]?
2068 +
2069 +
2070 += 6. FAQ =
2071 +
2072 +== 6.1 How to upgrade the image? ==
2073 +
2074 +
1971 1971  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1972 1972  
1973 1973  * Support new features
... ... @@ -1995,8 +1995,10 @@
1995 1995  
1996 1996   [[image:image-20220524103407-12.png]]
1997 1997  
2102 +
1998 1998  [[image:image-20220524103429-13.png]]
1999 1999  
2105 +
2000 2000  [[image:image-20220524104033-15.png]]
2001 2001  
2002 2002  
... ... @@ -2008,7 +2008,7 @@
2008 2008  
2009 2009  (((
2010 2010  (((
2011 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
2117 +== 6.2 How to change the LoRa Frequency Bands/Region? ==
2012 2012  
2013 2013  
2014 2014  )))
... ... @@ -2021,7 +2021,7 @@
2021 2021  (((
2022 2022  
2023 2023  
2024 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2130 +== 6.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2025 2025  
2026 2026  
2027 2027  )))
... ... @@ -2084,14 +2084,20 @@
2084 2084  [[image:1653360498588-932.png||height="485" width="726"]]
2085 2085  
2086 2086  
2087 -== 5.4 Can I see counting event in Serial? ==
2193 +== 6.4 How to change the uplink interval？ ==
2088 2088  
2089 2089  
2196 +Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
2197 +
2198 +
2199 +== 6.5 Can I see counting event in Serial? ==
2200 +
2201 +
2090 2090  (((
2091 2091  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.
2092 2092  
2093 2093  
2094 -== 5.5 Can i use point to point communication for LT-22222-L? ==
2206 +== 6.6 Can i use point to point communication for LT-22222-L? ==
2095 2095  
2096 2096  
2097 2097  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
... ... @@ -2100,7 +2100,7 @@
2100 2100  )))
2101 2101  
2102 2102  (((
2103 -== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2215 +== 6.7 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2104 2104  
2105 2105  
2106 2106  If the device is not shut down, but directly powered off.
... ... @@ -2112,7 +2112,7 @@
2112 2112  After restart, the status before power failure will be read from flash.
2113 2113  
2114 2114  
2115 -== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2227 +== 6.8 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2116 2116  
2117 2117  
2118 2118  LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
... ... @@ -2121,18 +2121,18 @@
2121 2121  [[image:image-20221006170630-1.png||height="610" width="945"]]
2122 2122  
2123 2123  
2124 -== 5.8 Can LT22222-L save RO state? ==
2236 +== 6.9 Can LT22222-L save RO state? ==
2125 2125  
2126 2126  
2127 2127  Firmware version needs to be no less than 1.6.0.
2128 2128  
2129 2129  
2130 -= 6. Trouble Shooting =
2242 += 7. Trouble Shooting =
2131 2131  )))
2132 2132  
2133 2133  (((
2134 2134  (((
2135 -== 6.1 Downlink doesn't work, how to solve it? ==
2247 +== 7.1 Downlink doesn't work, how to solve it? ==
2136 2136  
2137 2137  
2138 2138  )))
... ... @@ -2145,7 +2145,7 @@
2145 2145  (((
2146 2146  
2147 2147  
2148 -== 6.2 Have trouble to upload image. ==
2260 +== 7.2 Have trouble to upload image. ==
2149 2149  
2150 2150  
2151 2151  )))
... ... @@ -2157,7 +2157,7 @@
2157 2157  (((
2158 2158  
2159 2159  
2160 -== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2272 +== 7.3 Why I can't join TTN in US915 /AU915 bands? ==
2161 2161  
2162 2162  
2163 2163  )))
... ... @@ -2167,7 +2167,7 @@
2167 2167  )))
2168 2168  
2169 2169  
2170 -= 7. Order Info =
2282 += 8. Order Info =
2171 2171  
2172 2172  
2173 2173  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
... ... @@ -2184,11 +2184,9 @@
2184 2184  * (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2185 2185  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2186 2186  
2299 += 9. Packing Info =
2187 2187  
2188 2188  
2189 -= 8. Packing Info =
2190 -
2191 -
2192 2192  **Package Includes**:
2193 2193  
2194 2194  * LT-22222-L I/O Controller x 1
... ... @@ -2203,11 +2203,9 @@
2203 2203  * Package Size / pcs : 14.5 x 8 x 5 cm
2204 2204  * Weight / pcs : 170g
2205 2205  
2316 += 10. Support =
2206 2206  
2207 2207  
2208 -= 9. Support =
2209 -
2210 -
2211 2211  * (((
2212 2212  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.
2213 2213  )))
... ... @@ -2218,7 +2218,7 @@
2218 2218  
2219 2219  )))
2220 2220  
2221 -= 10. Reference​​​​​ =
2329 += 11. Reference​​​​​ =
2222 2222  
2223 2223  
2224 2224  * LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
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