Serial Port Connector: Com Ports; Usb Connectors - MSI K8NM-FISR User Manual

MS-7034 M-ATX Mainboard

Serial Port Connector: COM ports

The mainboard offers two 9-pin male DIN connectors as the serial ports. 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

USB Connectors

The mainboard provides an OHCI (Open Host Controller Interface) Universal
Serial Bus root for attaching USB devices such as keyboard, mouse or other USB-
compatible devices. You can plug the USB device directly into the connector.
1 2 3 4
5 6 7 8
USB Ports
2-12
Pin Definition
PIN SIGNAL
1 DCD
2 SIN
3 SOUT
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
USB Port Description
PIN SIGNAL
1 VCC
2 -Data 0
3 +Data0
4 GND
5 VCC
6 -Data 1
7 +Data 1
8 GND
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
DESCRIPTION
+5V
Negative Data Channel 0
Positive Data Channel 0
Ground
+5V
Negative Data Channel 1
Positive Data Channel 1
Ground