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2.8
Front Panel Connectors (CN3 and CN4;
JP1, JP2)
Next, you may want to install external switches to monitor and control
the PCA-6155V. These features are optional - install them only if you
need them. The front panel connector (CN3) is a 4-pin male; CN4 is a
5-pin male in-line header and provides connections for a speaker, hard
disk access indicator, power on indicator, turbo indicator and an input
switch for resetting the card.
Speaker/Buzzer Interface (CN3)
Contains an external speaker and an internal buzzer.
LED interface (CN4)
The front panel LED indicator for "power on" is an active high signal.
If CN4 is connected to the keyholder, it can support keyboard lock
function.
Reset switch (JP2)
If you install a reset switch, it should be a open single pole switch.
Momentarily pressing the switch will activate a reset. The switch
should be rated for 10 mA, 5 V.
If you need to make your own cable, you can find the pin assignments
for the card's connector in Appendix C.
2.9
Serial Ports (CN13: COM1; CN11: COM2 /
RS-232; CN9: COM2 / RS-422/485)
The PCA-6155V offers two serial ports: COM1 in RS-232, COM2 in
RS-232/422/485. 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 pro-
gram, covered in Chapter 4.
PCA-6155V User's Manual
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