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PCM-9386 User Manual 20
2. Attach the appropriate connector on the other end of the cable to
the floppy drive(s). You can use only one connector in the set. The
set on the end (after the twist in the cable) connects to the A: drive.
The set in the middle connects to the B: drive.
If you are connecting a 3.5” floppy drive, you may have trouble determin-
ing which pin is number one. Look for a number printed on the circuit
board indicating pin number one. In addition, the connector on the floppy
drive may have a slot. When the slot is up, pin number one should be on
the right. Check the documentation that came with the drive for more
information.
If you desire, connect the B: drive to the connectors in the middle of the
cable as described above.
In case you need to make your own cable, you can find the pin assign-
ments for the board’s connector in Appendix C.
2.9 Parallel port connector (CN13)
Normally, the parallel port is used to connect the card to a printer. The
board includes a multi-mode (ECP/EPP/SPP) parallel port accessed via
CN13 and a 26-pin flat-cable connector. You will need an adapter cable if
you use a traditional DB-25 connector. The adapter cable has a 26-pin
connector on one end, and a DB-25 connector on the other.
The parallel port is designated as LPT1, and can be disabled or changed to
LPT2 or LPT3 in the system BIOS setup.
The parallel port interrupt channel is designated to be IRQ7.
You can select ECP/EPP DMA channel via BIOS setup.
2.10 Keyboard and PS/2 mouse connector (CN14)
The board provides a keyboard connector that supports both a keyboard
and a PS/2 style mouse. In most cases, especially in embedded applica-
tions, a keyboard is not used. If the keyboard is not present, the standard
PC/AT BIOS will report an error or fail during power-on self-test (POST)
after a reset. The board’s BIOS standard setup menu allows you to select
“All, But Keyboard” under the “Halt On” selection. This allows no-key-
board operation in embedded system applications, without the system
halting under POST.