POD-6552 User’s Manual 20
mouse, etc.) or a communication network. You can find the pin assign-
ments for the COM port connector in Appendix A.
2.20 PS/2 Mouse/Keyboard connector (CN5)The POD-6552 board provides a keyboard connector that supports both a
keyboard and a PS/2 style mouse. In most cases, especially in embedded
applications, a keyboard is not used. If the keyboard is not present, the
standard PC/AT BIOS will report an error or fail during power-on self-
test (POST) after a reset. The POD-6552’s BIOS standard setup menu
allows you to select "All, But Keyboard"under the "Halt On"selection.
This allows no-keyboard operation in embedded system applications,
without the system halting under POST.
2.20.1 PS/2 connector(CN13)
CN13 is a 6pin connector for PS/2.
2.21 Front Panel Connector (CN26)Next is to install external switches to monitor and control the POD-6552.
These features are optional: install them only if necessary. CN26 is an
2x7 pin header, 180 degree, male.It provides connections for reset and
power & hard disk indicator.
2.21.1 Reset (Pin 13 & Pin14)
If a reset switch is installed, it should be an open single pole switch.
Momentarily pressing the switch will activate a reset. The switch should
be rated for 10 mA, 5 V.
2.21.2 HDD LED (Pin 1 & Pin2)
The HDD LED indicator for hard disk access is an active low signal (24
mA sink rate).
The HDD LED indicator would light when HDD works.
2.21.3 Power LED (Pin 3 & Pin 4)
The Power LED indicator would light when the power is on.
2.21.4 Suspend LED (Pin 5 & Pin 6)
The Suspend LED indicator would light when the computer is suspend.
2.21.5 Power Button (Pin 11 & Pin12)
The POD-6552 provides an ATX power input connector. When connected
with PIN 9 & PIN 10, it enables power On/Off from the chassis.