Serial Port Connectors: Com A & Com B; Vga Db 15 Pin Connector - MSI MS-6390 User Manual

Chapter 2
Serial Port Connectors: COM A & COM B
The mainboard offers two 9-pin male DIN connectors as serial port COM
A & COM B (COM B is the header JCOM2 on the board). 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 5
6 7 8 9
9-Pin Male DIN Connector
8
6
4
2
JCOM 2 (COM B)

VGA DB 15 Pin Connector

One DB 15-pin VGA connector is supplied for connection to a VGA
monitor.
5
15
DB 15-Pin Female Connector
PIN
1
2
3
4
5
6
9
7
7
8
5
9
3
1
1
11
Pin Definition
SIGNAL
DCD
SIN
SOUT
DTR
GND
DSR
RTS
CTS
RI
Pin Definition
Analog Video Display Connector (DB-15S)
PIN SIGNAL DESCRIPTION
1 Red
2 Green
3 Blue
4 Not used
5 Ground
6 Ground
7 Ground
8 Ground
9 Power
10 Ground
1 1 Not used
12 SDA
13 Horizontal Sync
14 Vertical Sync
15 SCL
2-10
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