MS-7125 M-ATX Mainboard

Serial Port Connector

The mainboard offers one 9-pin male DIN connector as the serial port. The port is a 16550A high speed communication port that sends/receives 16 bytes FIFOs. You can attach a serial mouse or other serial devices directly to the connector.

 

 

 

 

 

 

 

Pin Definition

1 2

 

3

4 5

 

 

 

 

 

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)

6

7

8

9

 

 

5

GND

Ground

9-Pin Male DIN Connector

6

DSR

Data Set Ready

 

 

 

 

 

 

7

RTS

Request To Send

 

 

 

 

 

 

8

CTS

Clear To Send

 

 

 

 

 

 

9

RI

Ring Indicate

 

 

 

 

 

 

 

 

 

USB Connectors

The mainboard provides two OHCI (Open Host Controller Interface) Universal Serial Bus roots 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

USB Port Description

PIN

SIGNAL

DESCRIPTION

 

 

 

1

VCC

+5V

2

-Data 0

Negative Data Channel 0

3

+Data0

Positive Data Channel 0

4

GND

Ground

5

VCC

+5V

6

-Data 1

Negative Data Channel 1

7

+Data 1

Positive Data Channel 1

8

GND

Ground

 

 

 

E-2-12