Chapter 2 Connecting peripherals 19
Reset switch (J29)
You can connect an external switch to easily reset your computer.
This switch restarts your computer as if you had turned off the
power, then turned it back on. Install the switch so that it closes the
two pins of J29.
Hard disk drive LED (D2)
You can connect a LED to connector D2 to indicate when the HDD
is active. Marks on the circuit board indicate LED polarity.
VGA display connector (CN8)
The PCA-6144V provides a VGA controller for high resolution
VGA interface. CN8 is a DB-15 connector for VGA monitor input.
Serial Ports
The PCA-6144V offers two serial ports: COM1 in RS-232, COM2
in RS-232/485. These ports let you connect to serial devices (a
mouse, printers, etc.) or a communication network.
You can select the address for each port (3F8H [COM1], 2F8H
[COM2] or 3E8H) or disable it, using the BIOS Advanced Setup
program, covered in Chapter 3.
The card mounting bracket holds the serial port connector for the
one port, and the parallel port and serial port adapter kit (supplied
with the card) holds the connector for the other port. This lets you
connect and disconnect cables after you install the card. The DB-9
connector on the bottom of the bracket is the first RS-232 port,
COM1. The DB-9 connector on the adapter kit is the second serial
port, COM2.
Serial port connections (CN6, CN11)
Connector
Address
CN6
COM2
CN11
COM1
