User`s manual

13 Chapter 2
2.6 Serial ports (CN5, CN6, CN8, CN9)
The PCM-3347 offers four serial ports, three RS-232. These ports allow
you to connect to any serial device (a mouse, printers, etc.) or communi-
cation network.
2.6.1 COM1,COM3,COM4 RS-232 port (CN6,CN9,CN8)
The serial port connector's consist of a 10-pin dual-in-line pin head hous-
ing.
2.6.2 COM2 RS-232/422/485 port (CN5, CN23)
The secondary port, located above COM2, consists of two 10-pin, dual-
in-line pin head housing.
The IRQ and address range for these ports are fixed. However, if you
wish to disable the port or change these parameters later, you can do this
in the system BIOS setup. The table below shows the settings for the
PCM-3347 board's ports.
2.7 EIDE HDD connector (CN1)
The built-in Enhanced IDE (Integrated Device Electronics) controller
supports up to two IDE devices, including CD-ROM drives, tape backup
drives, a large hard disk drive and other IDE devices.
2.7.1 Connecting the hard drive
Connecting drives is done in a daisy-chain fashion. It requires one or two
cables, depending on the drive size. All necessary cables are included in
your PCM-3347 package. 1.8" and 2.5" drives need a 1 x 44-pin to 2 x
44-pin flat-cable connector. 3.5" drives need a 1 x 44-pin to 2 x 40-pin
connector.
Wire number 1 on the cable is red or blue, and the other wires are gray.
Table 2.2: Serial port default settings
Port Address Interrupt Default
COM1 3E8, 3F8 IRQ4 3F8
COM2 2E8, 2F8 IRQ3 2F8
COM3 270,277 IRQ5 270
COM4 2F0,2F7 IRQ10 2F0