9. Appendices
Vlinx MESR9xx Modbus Gateway
Page 51
Manual Documentation Number MESR9xx-4508m
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Appendix D: Connector Pinouts
MESR901-x Serial Port Pinouts
DB-9M Pin
RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI