Serial Port Connectors: Com A & Com 2 - MSI MS-6580-060 - 845GE Max-L Motherboard User Manual

Serial Port Connectors: COM A & COM 2
The mainboard offers two serial port connectors COM A and COM 2.
Both COMA and COM 2 are 16550A high speed communication ports that
send/receive 16 bytes FIFOs. You can attach a serial mouse or other serial
device directly to them.
PIN
1
2
3
4
5
6
7
8
9
1 2 3 4 5
6 7 8 9
COM A
1 6
2 7
3 8
4 9
5
COM 2
Pin Definition
SIGNAL DESCRIPTION
DCD Data Carry Detect
SIN Serial In or Receive Data
SOUT Serial Out or Transmit Data
DTR Data Terminal Ready)
GND Ground
DSR Data Set Ready
RTS Request To Send
CTS Clear To Send
RI Ring Indicate
Hardware Setup
2-13