9. Appendices
VlinxMESR9xx Modbus Gateway
Page 75
Manual Documentation Number MESR9xx-1016m
www.advantech-bb.com
Appendix D: Connector Pinouts
MESR901-x Serial Port Pinouts
DB9 M Pin
Direction
RS-232
1
Input
DCD
2
Input
RXD
3
Output
TXD
4
Output
DTR
5
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GND
6
Input
DSR
7
Output
RTS
8
Input
CTS
9
Input
RI