Table 4-14: PS/2 keyboard connector

PS/2 Keyboard

CN4

 

PS/2 Keyboard

CN4

 

Pin

Signal

Pin

Signal

Pin

Signal

Pin

Signal

 

 

 

 

 

 

 

 

1

KB_Data

31

KBDT

4

Vcc

29

KBVCC

 

 

 

 

 

 

 

 

2

NC

-

-

5

KBCLK

32

KBCK

 

 

 

 

 

 

 

 

3

GND

34

GND

6

NC

-

-

 

 

 

 

 

 

 

 

Table 4-15: PS/2 mouse connector

 

 

 

 

 

 

 

 

 

PS/2 Mouse

CN4

 

PS/2 Mouse

CN4

 

Pin

Signal

Pin

Signal

Pin

Signal

Pin

Signal

 

 

 

 

 

 

 

 

1

MDATA

30

MSDT

4

Vcc

29

KBVCC

 

 

 

 

 

 

 

 

2

NC

-

-

5

MCLK

33

MSCK

 

 

 

 

 

 

 

 

3

GND

34

GND

6

NC

-

-

4.10.4 Serial ports

The CPC-2245N offers two serial ports: COM1 and COM2, both in RS- 232. These ports let you connect to serial devices (a mouse, printers, etc.) or a communication network.

You can select the address for each port (For example, 3F8H [COM1], 2F8H [COM2]) or disable it, using the BIOS Advanced Setup program. Different devices implement the RS-232 standard in different ways. If you are having problems with a serial device, be sure to check the pin assignments for the connector.

The IRQ and address range for both ports are fixed. However, if you wish to disable the port or change these parameters later, you can do this in the system BIOS setup. The table below shows the settings for the CPC-2245N board's ports:

Chapter 4 CPC-2245N Main Borad

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Image 63
Advantech HMI-640S user manual Serial ports