MSI K7D MASTER User Guide - Page 30

Keyboard Connector: KBMS1, Serial Port Connectors: COM A & COM B

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Hardware Setup Keyboard Connector: KBMS1 The mainboard provides a standard PS/2® keyboard mini DIN connector for attaching a PS/2® keyboard. You can plug a PS/2® keyboard directly into this connector. 6 5 PIN 1 4 3 2 3 4 21 5 6 PS/2 Keyboard (6-pin Female) Pin Definition SIGNAL Keyboard DATA NC GND VCC Keyboard Clock NC DESCRIPTION Keyboard DATA No connection Ground +5V Keyboard clock No connection Serial Port Connectors: COM A & COM B The mainboard offers two 9-pin male DIN connectors as serial ports COM A and 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 them. 1 2 3 4 5 PIN 1 2 3 4 6 7 8 9 5 6 9-Pin Male DIN Connector 7 8 9 Pin Definition SIGNAL DCD SIN SOUT DTR GND DSR RTS CTS RI 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 Ring Indicate 2-13

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2-13
Hardware Setup
Keyboard Connector: KBMS1
The mainboard provides a standard PS/2
®
keyboard mini DIN connector
for attaching a PS/2
®
keyboard.
You can plug a PS/2
®
keyboard directly into
this connector.
Serial Port Connectors: COM A & COM B
The mainboard offers two 9-pin male DIN connectors as serial ports
COM A and 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 them.
PS/2 Keyboard (6-pin Female)
PIN
SIGNAL
DESCRIPTION
1
Keyboard DATA
Keyboard DATA
2
NC
No connection
3
GND
Ground
4
VCC
+5V
5
Keyboard Clock
Keyboard clock
6
NC
No connection
Pin Definition
2
1
3
4
5
6
PIN
SIGNAL
DESCRIPTION
1
DCD
Data Carry Detect
2
SIN
Serial In or Receive Data
3
SOUT
Serial Out or Transmit Data
4
DTR
Data Terminal Ready)
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicate
9-Pin Male DIN Connector
Pin Definition
1
2
3
4
5
6
7
8
9