User`s manual

20 PCA-6740 User's Manual
2.17 Serial ports
(CN15: COM1; CN14: COM2/RS-232;
CN13: COM2/RS-422/485)
The PCA-6740 offers two serial ports: COM1 in RS-232 and COM2
(CN14: RS-232, CN13:RS-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 each port. Use the BIOS Advanced Setup
program, which is covered in Chapter 4.
The card mounting bracket holds the serial port connector for the one
port. 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.
2.15 PC/104 connectors (CN10)
The PCA-6740 is equipped with a 16-bit ISA signal PC/104 connector
for future expansion. See Appendix D for details.
2.16 Ethernet connector (CN11)
The PCA-6740 is equipped with a high performance 32-bit PCI-bus
Fast Ethernet interface which is fully compliant with IEEE 802.3u
10/100Base-T specifications. It is supported by all major network
operating systems.
The medium type can be configured via the rset8139.EXE program
included on the utility disk. (See Chapter 5 for detailed information.)
2.16.1 Network boot
The network boot feature is built into the BIOS. It can be enabled or
disabled in the chipset setup of the CMOS configuration. Refer to
"BIOS Setting" in Chapter 4 for more information.