Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 82.24 >
edited by Xiaoling
on 2022/06/20 11:59
To version < 90.2 >
edited by Xiaoling
on 2022/08/18 11:36
>
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... ... @@ -1,7 +1,6 @@
1 1  (% style="text-align:center" %)
2 2  [[image:image-20220523163353-1.jpeg||height="604" width="500"]]
3 3  
4 -**LT-22222-L LoRa IO Controller User Manual **
5 5  
6 6  
7 7  **Table of Contents:**
... ... @@ -42,6 +42,8 @@
42 42  
43 43  (((
44 44  2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
44 +
45 +
45 45  )))
46 46  
47 47  (((
... ... @@ -173,6 +173,7 @@
173 173  
174 174  == 1.3 Features ==
175 175  
177 +
176 176  * LoRaWAN Class A & Class C protocol
177 177  * Optional Customized LoRa Protocol
178 178  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
... ... @@ -182,8 +182,12 @@
182 182  * Counting
183 183  
184 184  
187 +
188 +
189 +
185 185  == 1.4  Applications ==
186 186  
192 +
187 187  * Smart Buildings & Home Automation
188 188  * Logistics and Supply Chain Management
189 189  * Smart Metering
... ... @@ -192,8 +192,12 @@
192 192  * Smart Factory
193 193  
194 194  
201 +
202 +
203 +
195 195  == 1.5 Hardware Variants ==
196 196  
206 +
197 197  (% border="1" style="background-color:#f7faff; width:500px" %)
198 198  |(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
199 199  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
... ... @@ -210,6 +210,7 @@
210 210  
211 211  = 2. Power ON Device =
212 212  
223 +
213 213  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
214 214  
215 215  (((
... ... @@ -224,19 +224,24 @@
224 224  
225 225  == 3.1 How it works? ==
226 226  
238 +
227 227  (((
228 -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. 
240 +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 (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**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. 
229 229  )))
230 230  
231 231  (((
232 -In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
244 +In case user can't set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
233 233  )))
234 234  
235 235  
248 +
236 236  == 3.2 Example to join LoRaWAN network ==
237 237  
251 +
238 238  (((
239 239  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. 
254 +
255 +
240 240  )))
241 241  
242 242  [[image:image-20220523172350-1.png||height="266" width="864"]]
... ... @@ -244,6 +244,8 @@
244 244  
245 245  (((
246 246  The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
263 +
264 +
247 247  )))
248 248  
249 249  (((
... ... @@ -281,14 +281,13 @@
281 281  
282 282  There are five working modes + one interrupt mode on LT for different type application:
283 283  
284 -* **MOD1**: (default setting): 2 x ACI + 2AVI + DI + DO + RO
285 -* **MOD2**: Double DI Counting + DO + RO
286 -* **MOD3**: Single DI Counting + 2 x ACI + DO + RO
287 -* **MOD4**: Single DI Counting + 1 x Voltage Counting + DO + RO
288 -* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
289 -* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
302 +* (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
303 +* (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
304 +* (% style="color:blue" %)**MOD3**(%%): Single DI Counting + 2 x ACI + DO + RO
305 +* (% style="color:blue" %)**MOD4**(%%): Single DI Counting + 1 x Voltage Counting + DO + RO
306 +* (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
307 +* (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
290 290  
291 -
292 292  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
293 293  
294 294  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -342,7 +342,6 @@
342 342  ** DO1 is high in case there is load between DO1 and V+.
343 343  ** DO1 LED is off in both case
344 344  
345 -
346 346  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
347 347  
348 348  
... ... @@ -392,24 +392,20 @@
392 392  
393 393  (((
394 394  **For LT22222-L:**
395 -)))
396 396  
397 -(% class="box infomessage" %)
398 -(((
399 -(((
400 -**AT+TRIG1=0,100  (set DI1 port to trigger on low level, valid signal is 100ms) **
401 401  
402 -**AT+TRIG1=1,100  (set DI1 port to trigger on high level, valid signal is 100ms ) **
413 +(% style="color:blue" %)**AT+TRIG1=0,100**(%%)**  (set DI1 port to trigger on low level, valid signal is 100ms) **
403 403  
404 -**AT+TRIG2=0,100  (set DI2 port to trigger on low level, valid signal is 100ms) **
415 +(% style="color:blue" %)**AT+TRIG1=1,100**(%%)**  (set DI1 port to trigger on high level, valid signal is 100ms ) **
405 405  
406 -**AT+TRIG2=1,100  (set DI2 port to trigger on high level, valid signal is 100ms ) **
417 +(% style="color:blue" %)**AT+TRIG2=0,100**(%%)**  (set DI2 port to trigger on low level, valid signal is 100ms) **
407 407  
408 -**AT+SETCNT=1,60   (Set COUNT1 value to 60)**
419 +(% style="color:blue" %)**AT+TRIG2=1,100**(%%)**  (set DI2 port to trigger on high level, valid signal is 100ms ) **
409 409  
410 -**AT+SETCNT=2,60   (Set COUNT2 value to 60)**
421 +(% style="color:blue" %)**AT+SETCNT=1,60**(%%)**   (Set COUNT1 value to 60)**
422 +
423 +(% style="color:blue" %)**AT+SETCNT=2,60**(%%)**   (Set COUNT2 value to 60)**
411 411  )))
412 -)))
413 413  
414 414  
415 415  
... ... @@ -420,6 +420,8 @@
420 420  [[image:image-20220523181246-5.png]]
421 421  
422 422  (((
435 +
436 +
423 423  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
424 424  )))
425 425  
... ... @@ -433,6 +433,7 @@
433 433  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
434 434  )))
435 435  
450 +
436 436  (((
437 437  **To use counting mode, please run:**
438 438  )))
... ... @@ -501,11 +501,8 @@
501 501  
502 502  
503 503  **Plus below command for AVI1 Counting:**
504 -)))
505 505  
506 -(% class="box infomessage" %)
507 -(((
508 -(((
520 +
509 509  (% style="color:blue" %)**AT+SETCNT=3,60**(%%)**  (set AVI Count to 60)**
510 510  
511 511  (% style="color:blue" %)**AT+VOLMAX=20000**(%%)**  (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
... ... @@ -514,9 +514,9 @@
514 514  
515 515  (% style="color:blue" %)**AT+VOLMAX=20000,1**(%%)**  (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
516 516  )))
517 -)))
518 518  
519 519  
531 +
520 520  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
521 521  
522 522  
... ... @@ -568,8 +568,8 @@
568 568  
569 569  For example, if user has configured below commands:
570 570  
571 -* **AT+MOD=1 ** **~-~->** The normal working mode
572 -* **AT+ADDMOD6=1**   **~-~->** Enable trigger
583 +* **AT+MOD=1 ** **~-~->**  The normal working mode
584 +* **AT+ADDMOD6=1**   **~-~->**  Enable trigger
573 573  
574 574  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
575 575  
... ... @@ -576,9 +576,9 @@
576 576  1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
577 577  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 (% style="color:#4f81bd" %)**CONFIRMED data type.**
578 578  
579 -
580 580  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
581 581  
593 +
582 582  (% style="color:#4f81bd" %)**Trigger base on voltage**:
583 583  
584 584  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
... ... @@ -718,7 +718,6 @@
718 718  
719 719  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
720 720  
721 -
722 722  === 3.4.1 Common Commands ===
723 723  
724 724  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
... ... @@ -727,6 +727,7 @@
727 727  
728 728  === 3.4.2 Sensor related commands ===
729 729  
741 +
730 730  ==== 3.4.2.1 Set Transmit Interval ====
731 731  
732 732  Set device uplink interval.
... ... @@ -733,23 +733,19 @@
733 733  
734 734  * (% style="color:#037691" %)**AT Command:**
735 735  
736 -(% class="box infomessage" %)
737 -(((
738 738  **AT+TDC=N **
739 -)))
740 740  
750 +
741 741  **Example: **AT+TDC=30000. Means set interval to 30 seconds
742 742  
743 743  
744 744  * (% style="color:#037691" %)**Downlink Payload (prefix 0x01):**
745 745  
746 -(% class="box infomessage" %)
747 -(((
748 748  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
749 -)))
750 750  
751 751  
752 752  
760 +
753 753  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
754 754  
755 755  Set work mode.
... ... @@ -756,51 +756,42 @@
756 756  
757 757  * (% style="color:#037691" %)**AT Command:**
758 758  
759 -(% class="box infomessage" %)
760 -(((
761 761  **AT+MOD=N  **
762 -)))
763 763  
769 +
764 764  **Example**: AT+MOD=2. Set work mode to Double DI counting mode
765 765  
766 766  
767 767  * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A):**
768 768  
769 -(% class="box infomessage" %)
770 -(((
771 -**0x0A aa     ~/~/ Same as AT+MOD=aa**
772 -)))
775 +**0x0A aa    ** ~/~/ Same as AT+MOD=aa
773 773  
774 774  
775 775  
779 +
776 776  ==== 3.4.2.3 Poll an uplink ====
777 777  
778 -* (% style="color:#037691" %)AT Command:
782 +* (% style="color:#037691" %)**AT Command:**
779 779  
780 780  There is no AT Command to poll uplink
781 781  
782 782  
783 -* (% style="color:#037691" %)Downlink Payload (prefix 0x08):
787 +* (% style="color:#037691" %)**Downlink Payload (prefix 0x08):**
784 784  
785 -(% class="box infomessage" %)
786 -(((
787 -**0x08 FF     ~/~/ Poll an uplink,**
788 -)))
789 +**0x08 FF     **~/~/ Poll an uplink
789 789  
790 790  **Example**: 0x08FF, ask device to send an Uplink
791 791  
792 792  
793 793  
795 +
794 794  ==== 3.4.2.4 Enable Trigger Mode ====
795 795  
796 796  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
797 797  
798 -* (% style="color:#037691" %)AT Command:
800 +* (% style="color:#037691" %)**AT Command:**
799 799  
800 -(% class="box infomessage" %)
801 -(((
802 802  **AT+ADDMOD6=1 or 0**
803 -)))
804 804  
805 805  1: Enable Trigger Mode
806 806  
... ... @@ -807,38 +807,34 @@
807 807  0: Disable Trigger Mode
808 808  
809 809  
810 -* (% style="color:#037691" %)Downlink Payload (prefix 0x0A 06):
809 +* (% style="color:#037691" %)**Downlink Payload (prefix 0x0A 06):**
811 811  
812 -(% class="box infomessage" %)
813 -(((
814 -**0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
815 -)))
811 +**0x0A 06 aa    ** ~/~/ Same as AT+ADDMOD6=aa
816 816  
817 817  
818 818  
815 +
819 819  ==== 3.4.2.5 Poll trigger settings ====
820 820  
821 821  Poll trigger settings,
822 822  
823 -* (% style="color:#037691" %)AT Command:
820 +* (% style="color:#037691" %)**AT Command:**
824 824  
825 825  There is no AT Command for this feature.
826 826  
827 827  
828 -* (% style="color:#037691" %)Downlink Payload (prefix 0x AB 06):
825 +* (% style="color:#037691" %)**Downlink Payload (prefix 0x AB 06):**
829 829  
830 -(% class="box infomessage" %)
831 -(((
832 -**0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
833 -)))
827 +**0xAB 06         **~/~/ Poll trigger settings, device will uplink trigger settings once receive this command
834 834  
835 835  
836 836  
831 +
837 837  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
838 838  
839 839  Enable Disable DI1/DI2/DI2 as trigger,
840 840  
841 -* (% style="color:#037691" %)AT Command:
836 +* (% style="color:#037691" %)**AT Command:**
842 842  
843 843  **Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
844 844  
... ... @@ -847,7 +847,7 @@
847 847  
848 848  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
849 849  
850 -* (% style="color:#037691" %)Downlink Payload (prefix 0xAA 02):
845 +* (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 02):**
851 851  
852 852  **0xAA 02 aa bb        **~/~/ Same as AT+DTRI=aa,bb
853 853  
... ... @@ -858,7 +858,7 @@
858 858  
859 859  Set DI1 or DI3(for LT-33222-L) trigger.
860 860  
861 -* (% style="color:#037691" %)AT Command:
856 +* (% style="color:#037691" %)**AT Command:**
862 862  
863 863  **AT+TRIG1=a,b**
864 864  
... ... @@ -875,8 +875,6 @@
875 875  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
876 876  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
877 877  
878 -
879 -
880 880  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
881 881  
882 882  Set DI2 trigger.
... ... @@ -937,11 +937,11 @@
937 937  
938 938  ==== 3.4.2.11 Trigger – Set minimum interval ====
939 939  
940 -Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
933 +Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
941 941  
942 942  * (% style="color:#037691" %)**AT Command**
943 943  
944 -**AT+ATDC=5. Device won’t response the second trigger within 5 minute after the first trigger.**
937 +**AT+ATDC=5        ** Device won't response the second trigger within 5 minute after the first trigger.
945 945  
946 946  
947 947  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAC )**
... ... @@ -948,9 +948,15 @@
948 948  
949 949  **0x AC aa bb   ** ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
950 950  
944 +(((
945 +
951 951  
947 +(% style="color:red" %)Note: ATDC setting must be more than 5min
948 +)))
952 952  
953 953  
951 +
952 +
954 954  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
955 955  
956 956  * (% style="color:#037691" %)**AT Command**
... ... @@ -1102,7 +1102,7 @@
1102 1102  
1103 1103  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1104 1104  
1105 -[[image:image-20220524093831-10.png]]
1104 +[[image:image-20220714135731-1.png||height="406" width="627"]]
1106 1106  
1107 1107  
1108 1108  (% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
... ... @@ -1112,21 +1112,21 @@
1112 1112  
1113 1113  **Example payload:**
1114 1114  
1115 -**~1. 05 01 11 07 D0**
1114 +**~1. 05 01 11 07 D**
1116 1116  
1117 -Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
1116 +Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1118 1118  
1119 1119  **2. 05 01 10 07 D0**
1120 1120  
1121 -Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
1120 +Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then both change back to original state.
1122 1122  
1123 1123  **3. 05 00 01 07 D0**
1124 1124  
1125 -Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
1124 +Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then relay change to NC,Relay2 change to NO.
1126 1126  
1127 1127  **4. 05 00 00 07 D0**
1128 1128  
1129 -Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1128 +Relay 1 & relay2 will change to NO, last 2 seconds, then both change to NC.
1130 1130  
1131 1131  
1132 1132  
... ... @@ -1137,7 +1137,7 @@
1137 1137  
1138 1138  * (% style="color:#037691" %)**AT Command:**
1139 1139  
1140 -(% style="color:#037691" %)**​​​​​​​**(%%)**AT+VOLMAX   ** ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1139 +**AT+VOLMAX   ** ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1141 1141  
1142 1142  
1143 1143  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA5):**
... ... @@ -1151,7 +1151,7 @@
1151 1151  
1152 1152  * (% style="color:#037691" %)**AT Command:**
1153 1153  
1154 -(% style="color:#037691" %)**​​​​​​​​​​​​​​**(%%)**AT+SETCNT=aa,(bb cc dd ee) **
1153 +**AT+SETCNT=aa,(bb cc dd ee) **
1155 1155  
1156 1156  aa: 1: Set count1,
1157 1157  
... ... @@ -1175,7 +1175,7 @@
1175 1175  
1176 1176  * (% style="color:#037691" %)**AT Command:**
1177 1177  
1178 -(% style="color:#037691" %)​​​​​​​​​​​​​​(%%)**AT+CLRCOUNT ** ~/~/ clear all counting
1177 +**AT+CLRCOUNT ** ~/~/ clear all counting
1179 1179  
1180 1180  
1181 1181  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA6):**
... ... @@ -1216,12 +1216,11 @@
1216 1216  (% style="color:blue" %)**Step 2**(%%): To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1217 1217  )))
1218 1218  
1219 -[[image:1653356737703-362.png||height="232" width="732"]]
1218 +[[image:image-20220719105525-1.png||height="377" width="677"]]
1220 1220  
1221 -[[image:image-20220524094641-11.png||height="390" width="723"]]
1222 1222  
1223 1223  
1224 -[[image:image-20220524094641-12.png||height="402" width="718"]]
1222 +[[image:image-20220719110247-2.png||height="388" width="683"]]
1225 1225  
1226 1226  
1227 1227  (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
... ... @@ -1433,6 +1433,7 @@
1433 1433  [[image:image-20220524100748-11.png]]
1434 1434  
1435 1435  
1434 +
1436 1436  = 4. Use AT Command =
1437 1437  
1438 1438  == 4.1 Access AT Command ==
... ... @@ -1635,8 +1635,6 @@
1635 1635  
1636 1636  (((
1637 1637  AT+CFG: Print all settings
1638 -
1639 -
1640 1640  )))
1641 1641  
1642 1642  
... ... @@ -1682,8 +1682,6 @@
1682 1682  
1683 1683  (((
1684 1684  (% style="background-color:#dcdcdc" %)ATZ
1685 -
1686 -
1687 1687  )))
1688 1688  
1689 1689  
... ... @@ -1796,7 +1796,7 @@
1796 1796  
1797 1797  
1798 1798  (% style="color:blue" %)**For LT-22222-L**(%%):
1799 -Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1794 +Hold down the PRO button and then momentarily press the RST reset button and the (% style="color:red" %)**DO1 led**(%%) will change from OFF to ON. When (% style="color:red" %)**DO1 LED**(%%) is on, it means the device is in download mode.
1800 1800  )))
1801 1801  
1802 1802   [[image:image-20220524103407-12.png]]
... ... @@ -1890,6 +1890,8 @@
1890 1890  == 5.5 Can i use point to point communication for LT-22222-L? ==
1891 1891  
1892 1892  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1888 +
1889 +
1893 1893  )))
1894 1894  
1895 1895  (((
... ... @@ -1903,12 +1903,13 @@
1903 1903  
1904 1904  After restart, the status before power failure will be read from flash.
1905 1905  
1903 +
1906 1906  = 6. Trouble Shooting =
1907 1907  )))
1908 1908  
1909 1909  (((
1910 1910  (((
1911 -== 6.1 Downlink doesn’t work, how to solve it? ==
1909 +== 6.1 Downlink doesn't work, how to solve it? ==
1912 1912  )))
1913 1913  )))
1914 1914  
... ... @@ -1929,7 +1929,7 @@
1929 1929  (((
1930 1930  
1931 1931  
1932 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1930 +== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
1933 1933  )))
1934 1934  
1935 1935  (((
... ... @@ -1937,24 +1937,22 @@
1937 1937  )))
1938 1938  
1939 1939  
1940 -
1941 1941  = 7. Order Info =
1942 1942  
1943 1943  
1944 1944  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1945 1945  
1946 -
1947 1947  (% style="color:#4f81bd" %)**XXX:**
1948 1948  
1949 -* (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1950 -* (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1951 -* (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1952 -* (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1953 -* (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1954 -* (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1955 -* (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1956 -* (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1957 -* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1945 +* (% style="color:red" %)**EU433**(%%):  LT with frequency bands EU433
1946 +* (% style="color:red" %)**EU868**(%%):  LT with frequency bands EU868
1947 +* (% style="color:red" %)**KR920**(%%):  LT with frequency bands KR920
1948 +* (% style="color:red" %)**CN470**(%%):  LT with frequency bands CN470
1949 +* (% style="color:red" %)**AS923**(%%):  LT with frequency bands AS923
1950 +* (% style="color:red" %)**AU915**(%%):  LT with frequency bands AU915
1951 +* (% style="color:red" %)**US915**(%%):  LT with frequency bands US915
1952 +* (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
1953 +* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
1958 1958  
1959 1959  = 8. Packing Info =
1960 1960  
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