Com1 And Com2 Wafer Connectors (Cn9 And Cn11) - AXIOMTEK CAPA13S User Manual

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):
Pin RS-232
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI
9 GND
CN11 (for COM2):
Pin RS-232
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI
9 GND
Board and Pin Assignments
RS-422 RS-485
TX- Data-
No use No use
TX+ Data+
No use No use
RX+ No use
No use No use
RX- No use
No use No use
No use No use
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9
CAPA13S Capa Board
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9
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