Com Wafer Connectors (Cn6 And Cn7); Fan Connector (Cn8) - AXIOMTEK CAPA313 User Manual

2.4.5

COM Wafer Connectors (CN6 and CN7)

The CN6 and CN7 (optional) are 9-pin (pitch=1.25mm) connectors for COM2 and COM1
interface, respectively. Both connectors are compliant with Molex 53047-0910. If you
need COM1 to support RS-422 or RS-485 communication mode, please refer to BIOS
setting in section 4.4.
COM1 (optional):
Pin RS-232
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI
9 GND
COM2:
Pin RS-232
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI
9 GND
2.4.6

Fan Connector (CN8)

A fan interface is available through this connector. You can find fan speed within BIOS
Setup Utility if fan is installed. For further information, see BIOS Setup Utility:
Advanced\Hardware Monitor\PC Health Status (see section 4.4).
Pin Signal
1 GND
2 +12V level
3 Fan speed feedback
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
CN6
1
CAPA313 3.5" Board
CN7
1
13