Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 58.9 >
edited by Xiaoling
on 2022/06/06 11:22
To version < 60.8 >
edited by Xiaoling
on 2022/06/14 11:14
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Summary

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Title
... ... @@ -1,1 +1,1 @@
1 -RS485-LN – RS485 to LoRaWAN Converter
1 +RS485-LN – RS485 to LoRaWAN Converter User Manual
Content
... ... @@ -3,7 +3,6 @@
3 3  
4 4  
5 5  
6 -**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 9  
... ... @@ -25,6 +25,8 @@
25 25  (((
26 26  (((
27 27  (((
27 +
28 +
28 28  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
29 29  )))
30 30  )))
... ... @@ -48,6 +48,8 @@
48 48  
49 49  (((
50 50  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
52 +
53 +
51 51  )))
52 52  )))
53 53  )))
... ... @@ -66,11 +66,13 @@
66 66  ** Idle: 32mA@12v
67 67  ** 20dB Transmit: 65mA@12v
68 68  
72 +
69 69  **Interface for Model:**
70 70  
71 71  * RS485
72 72  * Power Input 7~~ 24V DC. 
73 73  
78 +
74 74  **LoRa Spec:**
75 75  
76 76  * Frequency Range:
... ... @@ -92,6 +92,8 @@
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 93  * Packet engine up to 256 bytes with CRC
94 94  
100 +
101 +
95 95  == 1.3 Features ==
96 96  
97 97  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -104,6 +104,7 @@
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 106  
114 +
107 107  == 1.4 Applications ==
108 108  
109 109  * Smart Buildings & Home Automation
... ... @@ -114,6 +114,7 @@
114 114  * Smart Factory
115 115  
116 116  
125 +
117 117  == 1.5 Firmware Change log ==
118 118  
119 119  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -182,12 +182,13 @@
182 182  
183 183  [[image:1653268227651-549.png||height="592" width="720"]]
184 184  
194 +
185 185  (((
186 186  The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
187 187  )))
188 188  
189 189  (((
190 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
200 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
191 191  )))
192 192  
193 193  (((
... ... @@ -197,6 +197,7 @@
197 197  
198 198  [[image:1652953462722-299.png]]
199 199  
210 +
200 200  (((
201 201  (((
202 202  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -203,7 +203,7 @@
203 203  )))
204 204  
205 205  (((
206 -Add APP EUI in the application.
217 +**Add APP EUI in the application.**
207 207  )))
208 208  )))
209 209  
... ... @@ -219,13 +219,15 @@
219 219  
220 220  [[image:1652953542269-423.png||height="710" width="723"]]
221 221  
222 -Add APP KEY and DEV EUI
223 223  
234 +
235 +**Add APP KEY and DEV EUI**
236 +
224 224  [[image:1652953553383-907.png||height="514" width="724"]]
225 225  
226 226  
227 227  (((
228 -**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
241 +(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
229 229  )))
230 230  
231 231  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -235,11 +235,15 @@
235 235  
236 236  (((
237 237  (((
251 +(((
238 238  There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
239 239  )))
254 +)))
240 240  
241 241  (((
257 +(((
242 242  (% 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
259 +)))
243 243  
244 244  
245 245  )))
... ... @@ -309,6 +309,7 @@
309 309  
310 310  
311 311  
329 +
312 312  === 3.3.2 Configure sensors ===
313 313  
314 314  (((
... ... @@ -320,15 +320,22 @@
320 320  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
321 321  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
322 322  |AT+CFGDEV|(% style="width:110px" %)(((
341 +(((
323 323  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
343 +)))
324 324  
345 +(((
325 325  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
347 +)))
326 326  
349 +(((
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
351 +)))
328 328  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 330  
331 331  
356 +
332 332  === 3.3.3 Configure read commands for each sampling ===
333 333  
334 334  (((
... ... @@ -831,200 +831,374 @@
831 831  
832 832  
833 833  
859 +
834 834  ==== **RS485 command timeout** ====
835 835  
862 +(((
836 836  Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
864 +)))
837 837  
866 +(((
838 838  Default value: 0, range:  0 ~~ 65 seconds
868 +)))
839 839  
840 -* **AT Command:**
870 +* (((
871 +**AT Command:**
872 +)))
841 841  
842 842  (% class="box infomessage" %)
843 843  (((
876 +(((
844 844  **AT+CMDDLaa=hex(bb cc)*1000**
845 845  )))
879 +)))
846 846  
881 +(((
847 847  **Example:**
883 +)))
848 848  
885 +(((
849 849  **AT+CMDDL1=1000** to send the open time to 1000ms
887 +)))
850 850  
889 +(((
890 +
891 +)))
851 851  
852 -* **Downlink Payload:**
893 +* (((
894 +**Downlink Payload:**
895 +)))
853 853  
897 +(((
854 854  **0x AA aa bb cc**
899 +)))
855 855  
901 +(((
856 856  Same as: AT+CMDDLaa=hex(bb cc)*1000
903 +)))
857 857  
905 +(((
858 858   **Example:**
907 +)))
859 859  
909 +(((
860 860   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
911 +)))
861 861  
862 862  
863 863  
915 +
864 864  ==== **Uplink payload mode** ====
865 865  
918 +(((
866 866  Define to use one uplink or multiple uplinks for the sampling.
920 +)))
867 867  
922 +(((
868 868  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
924 +)))
869 869  
870 -* **AT Command:**
926 +* (((
927 +**AT Command:**
928 +)))
871 871  
872 872  (% class="box infomessage" %)
873 873  (((
932 +(((
874 874  **AT+DATAUP=0**
875 875  )))
935 +)))
876 876  
877 877  (% class="box infomessage" %)
878 878  (((
939 +(((
879 879  **AT+DATAUP=1**
880 880  )))
942 +)))
881 881  
944 +(((
945 +
946 +)))
882 882  
883 -* **Downlink Payload:**
948 +* (((
949 +**Downlink Payload:**
950 +)))
884 884  
952 +(((
885 885  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
954 +)))
886 886  
956 +(((
887 887  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
958 +)))
888 888  
889 889  
890 890  
962 +
891 891  ==== **Manually trigger an Uplink** ====
892 892  
965 +(((
893 893  Ask device to send an uplink immediately.
967 +)))
894 894  
895 -* **AT Command:**
969 +* (((
970 +**AT Command:**
971 +)))
896 896  
973 +(((
897 897  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
975 +)))
898 898  
977 +(((
978 +
979 +)))
899 899  
900 -* **Downlink Payload:**
981 +* (((
982 +**Downlink Payload:**
983 +)))
901 901  
985 +(((
902 902  **0x08 FF**, RS485-LN will immediately send an uplink.
987 +)))
903 903  
904 904  
905 905  
991 +
906 906  ==== **Clear RS485 Command** ====
907 907  
994 +(((
908 908  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
996 +)))
909 909  
910 -* **AT Command:**
998 +* (((
999 +**AT Command:**
1000 +)))
911 911  
1002 +(((
912 912  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1004 +)))
913 913  
1006 +(((
914 914  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1008 +)))
915 915  
1010 +(((
916 916  Example screen shot after clear all RS485 commands. 
1012 +)))
917 917  
1014 +(((
1015 +
1016 +)))
918 918  
1018 +(((
919 919  The uplink screen shot is:
1020 +)))
920 920  
921 921  [[image:1654160691922-496.png]]
922 922  
923 923  
924 -* **Downlink Payload:**
1025 +* (((
1026 +**Downlink Payload:**
1027 +)))
925 925  
1029 +(((
926 926  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1031 +)))
927 927  
928 928  
929 929  
1035 +
930 930  ==== **Set Serial Communication Parameters** ====
931 931  
1038 +(((
932 932  Set the Rs485 serial communication parameters:
1040 +)))
933 933  
934 -* **AT Command:**
1042 +* (((
1043 +**AT Command:**
1044 +)))
935 935  
1046 +(((
936 936  Set Baud Rate:
1048 +)))
937 937  
938 938  (% class="box infomessage" %)
939 939  (((
1052 +(((
940 940  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
941 941  )))
1055 +)))
942 942  
1057 +(((
943 943  Set UART Parity
1059 +)))
944 944  
945 945  (% class="box infomessage" %)
946 946  (((
1063 +(((
947 947  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
948 948  )))
1066 +)))
949 949  
1068 +(((
950 950  Set STOPBIT
1070 +)))
951 951  
952 952  (% class="box infomessage" %)
953 953  (((
1074 +(((
954 954  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
955 955  )))
1077 +)))
956 956  
1079 +(((
1080 +
1081 +)))
957 957  
958 -* **Downlink Payload:**
1083 +* (((
1084 +**Downlink Payload:**
1085 +)))
959 959  
1087 +(((
960 960  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1089 +)))
961 961  
1091 +(((
962 962  **Example:**
1093 +)))
963 963  
964 -* A7 01 00 60   same as AT+BAUDR=9600
965 -* A7 01 04 80  same as AT+BAUDR=115200
1095 +* (((
1096 +A7 01 00 60   same as AT+BAUDR=9600
1097 +)))
1098 +* (((
1099 +A7 01 04 80  same as AT+BAUDR=115200
1100 +)))
966 966  
1102 +(((
967 967  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1104 +)))
968 968  
1106 +(((
969 969  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1108 +)))
970 970  
971 971  
1111 +
1112 +
972 972  == 3.6 Listening mode for RS485 network ==
973 973  
1115 +(((
974 974  This feature support since firmware v1.4
1117 +)))
975 975  
1119 +(((
976 976  RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
1121 +)))
977 977  
978 978  [[image:image-20220602171200-8.png||height="567" width="1007"]]
979 979  
1125 +(((
980 980  To enable the listening mode, use can run the command AT+RXMODE.
1127 +)))
981 981  
1129 +(((
1130 +
1131 +)))
982 982  
983 -(% border="1" style="background-color:#ffffcc; width:500px" %)
984 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
985 -|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
986 -|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
987 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
988 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1133 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1134 +|=(% style="width: 100px;" %)(((
1135 +**Command example**
1136 +)))|=(% style="width: 400px;" %)(((
1137 +**Function**
1138 +)))
1139 +|(% style="width:100px" %)(((
1140 +AT+RXMODE=1,10
1141 +)))|(% style="width:400px" %)(((
1142 +Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
1143 +)))
1144 +|(% style="width:100px" %)(((
1145 +AT+RXMODE=2,500
1146 +)))|(% style="width:400px" %)(((
1147 +Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
1148 +)))
1149 +|(% style="width:100px" %)(((
1150 +AT+RXMODE=0,0
1151 +)))|(% style="width:400px" %)(((
1152 +Disable listening mode. This is the default settings.
1153 +)))
1154 +|(% style="width:100px" %)(((
1155 +
1156 +)))|(% style="width:400px" %)(((
1157 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1158 +)))
989 989  
1160 +(((
990 990  **Downlink Command:**
1162 +)))
991 991  
1164 +(((
992 992  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1166 +)))
993 993  
1168 +(((
1169 +
1170 +)))
994 994  
1172 +(((
995 995  **Example**:
1174 +)))
996 996  
1176 +(((
997 997  The RS485-LN is set to AT+RXMODE=2,1000
1178 +)))
998 998  
1180 +(((
999 999  There is a two Modbus commands in the RS485 network as below:
1182 +)))
1000 1000  
1184 +(((
1001 1001  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1186 +)))
1002 1002  
1188 +(((
1003 1003  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1190 +)))
1004 1004  
1192 +(((
1005 1005  RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1194 +)))
1006 1006  
1196 +(((
1007 1007  [[image:image-20220602171200-9.png]]
1198 +)))
1008 1008  
1200 +(((
1201 +
1202 +)))
1009 1009  
1204 +(((
1205 +(((
1010 1010  (% style="color:red" %)Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.
1207 +)))
1208 +)))
1011 1011  
1012 1012  
1013 1013  == 3.7 Buttons ==
1014 1014  
1015 1015  
1016 -(% border="1" style="background-color:#f7faff; width:500px" %)
1017 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1018 -|**ACT**|(% style="width:1420px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1019 -|**RST**|(% style="width:1420px" %)Reboot RS485
1020 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1214 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1215 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1216 +|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1217 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1218 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1021 1021  
1022 1022  == 3.8 LEDs ==
1023 1023  
1024 -(% border="1" style="background-color:#f7faff; width:500px" %)
1025 -|=**LEDs**|=**Feature**
1222 +
1223 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1224 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1026 1026  |**PWR**|Always on if there is power
1027 -|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN** (%%)for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds**(%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
1226 +|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
1028 1028  
1029 1029  = 4. Case Study =
1030 1030  
... ... @@ -1035,19 +1035,26 @@
1035 1035  
1036 1036  == 5.1 Access AT Command ==
1037 1037  
1237 +(((
1038 1038  RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1239 +)))
1039 1039  
1040 1040  [[image:1654162355560-817.png]]
1041 1041  
1042 1042  
1244 +(((
1043 1043  In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1246 +)))
1044 1044  
1045 1045  [[image:1654162368066-342.png]]
1046 1046  
1047 1047  
1251 +(((
1048 1048  More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1253 +)))
1049 1049  
1050 1050  
1256 +
1051 1051  == 5.2 Common AT Command Sequence ==
1052 1052  
1053 1053  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1070,7 +1070,9 @@
1070 1070  )))
1071 1071  
1072 1072  
1279 +(((
1073 1073  If device already joined network:
1281 +)))
1074 1074  
1075 1075  (% class="box infomessage" %)
1076 1076  (((
... ... @@ -1109,10 +1109,12 @@
1109 1109  
1110 1110  (% style="color:red" %)**Note:**
1111 1111  
1320 +(((
1112 1112  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1113 1113  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1114 1114  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?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1115 1115  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
1325 +)))
1116 1116  
1117 1117  [[image:1654162478620-421.png]]
1118 1118  
... ... @@ -1121,25 +1121,45 @@
1121 1121  
1122 1122  == 6.1 How to upgrade the image? ==
1123 1123  
1334 +(((
1124 1124  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1336 +)))
1125 1125  
1126 -* Support new features
1127 -* For bug fix
1128 -* Change LoRaWAN bands.
1338 +* (((
1339 +Support new features
1340 +)))
1341 +* (((
1342 +For bug fix
1343 +)))
1344 +* (((
1345 +Change LoRaWAN bands.
1346 +)))
1129 1129  
1348 +(((
1130 1130  Below shows the hardware connection for how to upload an image to RS485-LN:
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1131 1131  
1132 1132  [[image:1654162535040-878.png]]
1133 1133  
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1134 1134  **Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
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1135 1135  
1358 +(((
1136 1136  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1360 +)))
1137 1137  
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1138 1138  **Step3: **Open flashloader; choose the correct COM port to update.
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1139 1139  
1140 1140  (((
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1368 +(((
1141 1141  (% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
1142 1142  )))
1371 +)))
1372 +)))
1143 1143  
1144 1144  
1145 1145  [[image:image-20220602175818-12.png]]
... ... @@ -1202,7 +1202,6 @@
1202 1202  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1203 1203  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1204 1204  
1205 -
1206 1206  = 9.Packing Info =
1207 1207  
1208 1208  
... ... @@ -1219,7 +1219,6 @@
1219 1219  * Package Size / pcs : 14.5 x 8 x 5 cm
1220 1220  * Weight / pcs : 170g
1221 1221  
1222 -
1223 1223  = 10. FCC Caution for RS485LN-US915 =
1224 1224  
1225 1225  (((

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