Hardware Components of the SIMATIC Box PC 620
3-5
SIMATIC Box PC 620 Operating Manual
C79000-Z7076-C638-04
3.3 Ports

Front Ports

The front ports are located behind the cover below the floppy disk drive. They are
used for connection of the following front elements:
•I/O port for the connection of front components
•LVDS display port
•CMOS display port
The front ports can be accessed as follows:
1. Undo the plastic rivet on the cover below the floppy disk drive with a flat
screwdriver.
2. Pull the cover out of the guide. The front ports are now accessible.
The CMOS display port is only accessible after removal of the floppy disk drive.
Note
Keep the cover and the plastic rivet for reuse.

VGA Port

Please read the note referring to the operation of LC displays and external
monitors.
Note
The default setting of the display provides the simultaneous operation of a LC display
and an external monitor. The screen display is then optimized to a format of
640 x 480 pixels. Modes with a lower resolution and text modes are expanded to this
format.
To optimize the screen display for an external monitor, select “Hardware Options”
under Setup and set “CRT/LCD selection: CRT enabled”. A resolution of
1024*768 pixels with a higher refresh rate can then be set.