AXIOMTEK CAPA13S Series, User Manual

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CAPA13S Capa Board
Board and Pin Assignments 15
2.5.5 COM1 and COM2 Wafer Connectors (CN9 and CN11)
These are 9-pin (pitch=1.25mm) connectors which are compliant with Molex
53047-0910. The pin assignments of RS-232/RS-422/RS-485 are listed in table below. If
you need COM1 port to support RS-422 or RS-485, please refer to BIOS setting in
section 4.4.
CN9 (for COM1):
CN11 (for COM2):
Pin RS-232 RS-422 RS-485
1 DCD TX- Data-
2 DSR No use No use
3 RXD TX+ Data+
4 RTS No use No use
5 TXD RX+ No use
6 CTS No use No use
7 DTR RX- No use
8 RI No use No use
9 GND No use No use
Pin RS-232
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI
9 GND
1
1
9
9