Appendices
Vlinx MESP211 Modbus Gateway
66
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APPENDIX D: CONNECTOR PINOUTS
MESP211 SERIAL PORT PINOUTS
DB9 Male
Pin
Direction
(RS-232)
RS-232
RS-422
RS-485
4-Wire
RS-485
2-Wire
1
Input
DCD
RDA (-)
****
2
Input
RXD
RDB (+)
****
3
Output
TXD
TDB (+)
Data B
(+)
4
Output
DTR
TDA (-)
Data A (-
)
5
****
GND
GND
GND
6
Input
DSR
****
****
7
Output
RTS
****
****
8
Input
CTS
****
****
9
****
****
****
****
Содержание Vlinx MESP211
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