Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.4 >
edited by Xiaoling
on 2022/06/06 11:21
To version < 58.29 >
edited by Xiaoling
on 2022/06/06 11:42
>
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -103,7 +103,6 @@
103 103  * Support Modbus protocol
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 -
107 107  == 1.4 Applications ==
108 108  
109 109  * Smart Buildings & Home Automation
... ... @@ -113,7 +113,6 @@
113 113  * Smart Cities
114 114  * Smart Factory
115 115  
116 -
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/]]
... ... @@ -307,8 +307,6 @@
307 307  )))
308 308  )))
309 309  
310 -
311 -
312 312  === 3.3.2 Configure sensors ===
313 313  
314 314  (((
... ... @@ -327,8 +327,6 @@
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
328 328  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 -
331 -
332 332  === 3.3.3 Configure read commands for each sampling ===
333 333  
334 334  (((
... ... @@ -548,6 +548,7 @@
548 548  
549 549  
550 550  
545 +
551 551  ==== **RS485 Debug Command** ====
552 552  
553 553  (((
... ... @@ -668,85 +668,161 @@
668 668  
669 669  
670 670  
666 +
671 671  ==== **Set Payload version** ====
672 672  
669 +(((
673 673  This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
671 +)))
674 674  
675 -* **AT Command:**
673 +* (((
674 +**AT Command:**
675 +)))
676 676  
677 677  (% class="box infomessage" %)
678 678  (((
679 +(((
679 679  **AT+PAYVER: Set PAYVER field = 1**
680 680  )))
682 +)))
681 681  
682 -* **Downlink Payload:**
684 +* (((
685 +**Downlink Payload:**
686 +)))
683 683  
688 +(((
684 684  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
690 +)))
685 685  
692 +(((
686 686  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
694 +)))
687 687  
688 688  
689 689  
698 +
690 690  ==== **Set RS485 Sampling Commands** ====
691 691  
701 +(((
692 692  AT+COMMANDx or AT+DATACUTx
703 +)))
693 693  
705 +(((
694 694  These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
707 +)))
695 695  
709 +(((
710 +
711 +)))
696 696  
697 -* **AT Command:**
713 +* (((
714 +**AT Command:**
715 +)))
698 698  
699 699  (% class="box infomessage" %)
700 700  (((
719 +(((
701 701  **AT+COMMANDx: Configure RS485 read command to sensor.**
702 702  )))
722 +)))
703 703  
704 704  (% class="box infomessage" %)
705 705  (((
726 +(((
706 706  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
707 707  )))
729 +)))
708 708  
731 +(((
732 +
733 +)))
709 709  
710 -* **Downlink Payload:**
735 +* (((
736 +**Downlink Payload:**
737 +)))
711 711  
739 +(((
712 712  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
741 +)))
713 713  
743 +(((
714 714  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
745 +)))
715 715  
747 +(((
716 716  Format: AF MM NN LL XX XX XX XX YY
749 +)))
717 717  
751 +(((
718 718  Where:
753 +)))
719 719  
720 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
721 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
722 -* LL:  The length of AT+COMMAND or AT+DATACUT command
723 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command
724 -* YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
755 +* (((
756 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
757 +)))
758 +* (((
759 +NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
760 +)))
761 +* (((
762 +LL:  The length of AT+COMMAND or AT+DATACUT command
763 +)))
764 +* (((
765 +XX XX XX XX: AT+COMMAND or AT+DATACUT command
766 +)))
767 +* (((
768 +YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
769 +)))
725 725  
771 +(((
726 726  **Example:**
773 +)))
727 727  
775 +(((
728 728  (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
777 +)))
729 729  
779 +(((
730 730  (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
781 +)))
731 731  
783 +(((
732 732  (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
785 +)))
733 733  
734 734  
735 735  
789 +
736 736  ==== **Fast command to handle MODBUS device** ====
737 737  
792 +(((
738 738  AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
794 +)))
739 739  
796 +(((
740 740  This command is valid since v1.3 firmware version
798 +)))
741 741  
800 +(((
742 742  AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
802 +)))
743 743  
804 +(((
805 +
806 +)))
744 744  
808 +(((
745 745  **Example:**
810 +)))
746 746  
747 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
748 -* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
749 -* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
812 +* (((
813 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
814 +)))
815 +* (((
816 +AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
817 +)))
818 +* (((
819 +AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
820 +)))
750 750  
751 751  [[image:image-20220602165351-6.png]]
752 752  
... ... @@ -754,201 +754,376 @@
754 754  
755 755  
756 756  
828 +
757 757  ==== **RS485 command timeout** ====
758 758  
831 +(((
759 759  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.
833 +)))
760 760  
835 +(((
761 761  Default value: 0, range:  0 ~~ 65 seconds
837 +)))
762 762  
763 -* **AT Command:**
839 +* (((
840 +**AT Command:**
841 +)))
764 764  
765 765  (% class="box infomessage" %)
766 766  (((
845 +(((
767 767  **AT+CMDDLaa=hex(bb cc)*1000**
768 768  )))
848 +)))
769 769  
850 +(((
770 770  **Example:**
852 +)))
771 771  
854 +(((
772 772  **AT+CMDDL1=1000** to send the open time to 1000ms
856 +)))
773 773  
858 +(((
859 +
860 +)))
774 774  
775 -* **Downlink Payload:**
862 +* (((
863 +**Downlink Payload:**
864 +)))
776 776  
866 +(((
777 777  **0x AA aa bb cc**
868 +)))
778 778  
870 +(((
779 779  Same as: AT+CMDDLaa=hex(bb cc)*1000
872 +)))
780 780  
874 +(((
781 781   **Example:**
876 +)))
782 782  
878 +(((
783 783   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
880 +)))
784 784  
785 785  
786 786  
884 +
787 787  ==== **Uplink payload mode** ====
788 788  
887 +(((
789 789  Define to use one uplink or multiple uplinks for the sampling.
889 +)))
790 790  
891 +(((
791 791  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
893 +)))
792 792  
793 -* **AT Command:**
895 +* (((
896 +**AT Command:**
897 +)))
794 794  
795 795  (% class="box infomessage" %)
796 796  (((
901 +(((
797 797  **AT+DATAUP=0**
798 798  )))
904 +)))
799 799  
800 800  (% class="box infomessage" %)
801 801  (((
908 +(((
802 802  **AT+DATAUP=1**
803 803  )))
911 +)))
804 804  
913 +(((
914 +
915 +)))
805 805  
806 -* **Downlink Payload:**
917 +* (((
918 +**Downlink Payload:**
919 +)))
807 807  
921 +(((
808 808  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
923 +)))
809 809  
925 +(((
810 810  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
927 +)))
811 811  
812 812  
813 813  
931 +
814 814  ==== **Manually trigger an Uplink** ====
815 815  
934 +(((
816 816  Ask device to send an uplink immediately.
936 +)))
817 817  
818 -* **AT Command:**
938 +* (((
939 +**AT Command:**
940 +)))
819 819  
942 +(((
820 820  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
944 +)))
821 821  
946 +(((
947 +
948 +)))
822 822  
823 -* **Downlink Payload:**
950 +* (((
951 +**Downlink Payload:**
952 +)))
824 824  
954 +(((
825 825  **0x08 FF**, RS485-LN will immediately send an uplink.
956 +)))
826 826  
827 827  
828 828  
960 +
829 829  ==== **Clear RS485 Command** ====
830 830  
963 +(((
831 831  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
965 +)))
832 832  
833 -* **AT Command:**
967 +* (((
968 +**AT Command:**
969 +)))
834 834  
971 +(((
835 835  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
973 +)))
836 836  
975 +(((
837 837  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
977 +)))
838 838  
979 +(((
839 839  Example screen shot after clear all RS485 commands. 
981 +)))
840 840  
983 +(((
984 +
985 +)))
841 841  
987 +(((
842 842  The uplink screen shot is:
989 +)))
843 843  
844 844  [[image:1654160691922-496.png]]
845 845  
846 846  
847 -* **Downlink Payload:**
994 +* (((
995 +**Downlink Payload:**
996 +)))
848 848  
998 +(((
849 849  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1000 +)))
850 850  
851 851  
852 852  
1004 +
853 853  ==== **Set Serial Communication Parameters** ====
854 854  
1007 +(((
855 855  Set the Rs485 serial communication parameters:
1009 +)))
856 856  
857 -* **AT Command:**
1011 +* (((
1012 +**AT Command:**
1013 +)))
858 858  
1015 +(((
859 859  Set Baud Rate:
1017 +)))
860 860  
861 861  (% class="box infomessage" %)
862 862  (((
1021 +(((
863 863  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
864 864  )))
1024 +)))
865 865  
1026 +(((
866 866  Set UART Parity
1028 +)))
867 867  
868 868  (% class="box infomessage" %)
869 869  (((
1032 +(((
870 870  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
871 871  )))
1035 +)))
872 872  
1037 +(((
873 873  Set STOPBIT
1039 +)))
874 874  
875 875  (% class="box infomessage" %)
876 876  (((
1043 +(((
877 877  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
878 878  )))
1046 +)))
879 879  
1048 +(((
1049 +
1050 +)))
880 880  
881 -* **Downlink Payload:**
1052 +* (((
1053 +**Downlink Payload:**
1054 +)))
882 882  
1056 +(((
883 883  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 +)))
884 884  
1060 +(((
885 885  **Example:**
1062 +)))
886 886  
887 -* A7 01 00 60   same as AT+BAUDR=9600
888 -* A7 01 04 80  same as AT+BAUDR=115200
1064 +* (((
1065 +A7 01 00 60   same as AT+BAUDR=9600
1066 +)))
1067 +* (((
1068 +A7 01 04 80  same as AT+BAUDR=115200
1069 +)))
889 889  
1071 +(((
890 890  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1073 +)))
891 891  
1075 +(((
892 892  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1077 +)))
893 893  
894 894  
1080 +
1081 +
895 895  == 3.6 Listening mode for RS485 network ==
896 896  
1084 +(((
897 897  This feature support since firmware v1.4
1086 +)))
898 898  
1088 +(((
899 899  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.
1090 +)))
900 900  
901 901  [[image:image-20220602171200-8.png||height="567" width="1007"]]
902 902  
1094 +(((
903 903  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
904 904  
1098 +(((
1099 +
1100 +)))
905 905  
906 -(% border="1" style="background-color:#ffffcc; width:500px" %)
907 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
908 -|(% 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.
909 -|(% 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
910 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
911 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1102 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1103 +|=(% style="width: 161px;" %)(((
1104 +**Command example:**
1105 +)))|=(% style="width: 337px;" %)(((
1106 +**Function**
1107 +)))
1108 +|(% style="width:161px" %)(((
1109 +AT+RXMODE=1,10
1110 +)))|(% style="width:337px" %)(((
1111 +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.
1112 +)))
1113 +|(% style="width:161px" %)(((
1114 +AT+RXMODE=2,500
1115 +)))|(% style="width:337px" %)(((
1116 +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
1117 +)))
1118 +|(% style="width:161px" %)(((
1119 +AT+RXMODE=0,0
1120 +)))|(% style="width:337px" %)(((
1121 +Disable listening mode. This is the default settings.
1122 +)))
1123 +|(% style="width:161px" %)(((
1124 +
1125 +)))|(% style="width:337px" %)(((
1126 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1127 +)))
912 912  
1129 +(((
913 913  **Downlink Command:**
1131 +)))
914 914  
1133 +(((
915 915  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
916 916  
1137 +(((
1138 +
1139 +)))
917 917  
1141 +(((
918 918  **Example**:
1143 +)))
919 919  
1145 +(((
920 920  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
921 921  
1149 +(((
922 922  There is a two Modbus commands in the RS485 network as below:
1151 +)))
923 923  
1153 +(((
924 924  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
925 925  
1157 +(((
926 926  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
927 927  
1161 +(((
928 928  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
1163 +)))
929 929  
1165 +(((
930 930  [[image:image-20220602171200-9.png]]
1167 +)))
931 931  
1169 +(((
1170 +
1171 +)))
932 932  
1173 +(((
933 933  (% 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.
1175 +)))
934 934  
935 935  
936 936  == 3.7 Buttons ==
937 937  
938 938  
939 -(% border="1" style="background-color:#f7faff; width:500px" %)
940 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
941 -|**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**
942 -|**RST**|(% style="width:1420px" %)Reboot RS485
943 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1181 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1182 +|=(% style="width: 30px;" %)**Button**|=(% style="width: 355px;" %)**Feature**
1183 +|=(% style="width: 30px;" %)**ACT**|(% style="width:355px" %)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**
1184 +|=(% style="width: 30px;" %)**RST**|(% style="width:355px" %)Reboot RS485
1185 +|=(% style="width: 30px;" %)**PRO**|(% style="width:355px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
944 944  
1187 +
1188 +
945 945  == 3.8 LEDs ==
946 946  
947 -(% border="1" style="background-color:#f7faff; width:500px" %)
948 -|=**LEDs**|=**Feature**
949 -|**PWR**|Always on if there is power
950 -|**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.
1191 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:500px" %)
1192 +|=(% style="width: 30px;" %)**LEDs**|=(% style="width: 400px;" %)**Feature**
1193 +|(% style="width:30px" %)**PWR**|=(% style="width: 400px;" %)Always on if there is power
1194 +|(% style="width:30px" %)**SYS**|=(% style="width: 400px;" %)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.
951 951  
1196 +
1197 +
952 952  = 4. Case Study =
953 953  
954 954  User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
... ... @@ -958,19 +958,26 @@
958 958  
959 959  == 5.1 Access AT Command ==
960 960  
1207 +(((
961 961  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.
1209 +)))
962 962  
963 963  [[image:1654162355560-817.png]]
964 964  
965 965  
1214 +(((
966 966  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:
1216 +)))
967 967  
968 968  [[image:1654162368066-342.png]]
969 969  
970 970  
1221 +(((
971 971  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/]]
1223 +)))
972 972  
973 973  
1226 +
974 974  == 5.2 Common AT Command Sequence ==
975 975  
976 976  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1125,7 +1125,6 @@
1125 1125  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1126 1126  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1127 1127  
1128 -
1129 1129  = 9.Packing Info =
1130 1130  
1131 1131  
... ... @@ -1142,7 +1142,6 @@
1142 1142  * Package Size / pcs : 14.5 x 8 x 5 cm
1143 1143  * Weight / pcs : 170g
1144 1144  
1145 -
1146 1146  = 10. FCC Caution for RS485LN-US915 =
1147 1147  
1148 1148  (((

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