Serial Port Connectors: Com A & Com B; Lan Jack (Optional) - MSI KT4A-V User Manual

MS-6712 ATX Mainboard
Serial Port Connectors: COM A & COM B
The mainboard offers two 9-pin male DIN connectors as serial port COM
A & COM B. The ports are 16550A high speed communication ports that
send/receive 16 bytes FIFOs. You can attach a serial mouse or other serial
devices directly to the connectors.
1 2 3 4
6 7 8 9
9-Pin Male DIN Connector
RJ-45 LAN Jack (Optional)
The mainboard provides a RJ-45 connector that allows your computer
to be connected to a network environment.
LAN Jack
(RJ-45)
2-14
5
PIN
1
2
3
4
5
6
7
8
9
Pin
Activity 1
2
Indicators
3
4
5
6
7
8
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
Signal Description
TDP Transmit differential pair
TDN Transmit differential pair
RDP Receive differential pair
NC Not used
NC Not used
RDN Receive differential pair
NC Not used
NC Not used