MSI Fuzzy 945 GME3 Mainboard MS-9642 User Manual page 31

Serial Port Connector: COM1, COM2, COM3, COM4
This connector is a 16550A high speed communications port that sends/receives 16
bytes FIFOs. You can attach a serial device to it through the optional serial port
bracket.
2
1
COM1/2/3/4
Voltage Select Serial Port
(page 2-17)
(page 2-17)
PIN SIGNAL
10
1 DCD
9
2 SIN
3 SOUT
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 VCC_COM3
COM4 COM3
COM1 COM2
Serial Port
J6
COM4 COM3
J4
COM1 COM2
Hardware Setup
Pin Definition
DESCRIPTION
Data Carry Detect
Serial In or Receive Data
Serial Out or Transmit Data
Data Terminal Ready
Ground
Data Set Ready
Request To Send
Clear To Send
Power Source
Voltage Select
J7
(page 2-17)
J5
(page 2-17)
2-13