Chapter 2 Connecting peripherals 19
Keyboard & PS/2 mouse connectors (J5)
The PCA-6145B/PCA-6145L board provides a keyboard connec-
tor. A 6-pin mini-DIN connector (J5) on the card mounting
bracket supports single-board computer applications. The card
comes with an adapter to convert from the 6-pin mini-DIN
connector to a standard DIN connector and to a PS/2 mouse
connector.
Reset switch (JP30)
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 JP30.
Hard disk drive LED (JP3)
You can connect a LED to connector JP3 to indicate when the
HDD is active. Marks on the circuit board indicate LED polarity.
VGA display connector (J2)
The PCA-6145B/PCA-6145L provides a VGA controller for high
resolution VGA interface. J2 is a DB-15 connector for VGA monitor
input.
Serial Ports
The PCA-6145B/PCA-6145L 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 (3F8H [COM1], 2F8H
[COM2] or 3E8H, [COM3] or 2E8 [COM4]) 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
