User`s manual

21 Chapter 2
2.6 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.
2.7 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.
2.8 VGA display connector (J2)
The PCA-6145B/PCA-6145L provides a VGA controller for high resolu-
tion VGA interface. J2 is a DB-15 connector for VGA monitor input.
2.9 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 with the
card) holds the connector for the other port. This lets you connect and dis-
connect cables after you install the card. The DB-9 connector on the bot-
tom of the bracket is the first RS-232 port, COM1. The DB-9 connector
on the adapter kit is the second serial port, COM2.