Advantech PCM-3350 Series, Руководство пользователя

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1 4 PCM-3350 User's Manual
2.13 PS/2 keyboard/mouse connector
(CN12)
The PCM-3350 board provides a pin head keyboard connector, which
supports both a keyboard and a PS/2 style mouse. In most cases,
especially in embedded applications, a keyboard is not used. If the
keyboard is not present, the standard PC/AT BIOS will report an error
or failure during the power-on self test (POST) after resetting the PC.
The PCM-3350 board's BIOS standard setup menu allows you to select
"Absent/Present" for your keyboard under the Advanced CMOS
Setup section. This allows non-keyboard operation in embedded
system applications without the system halting during the POST.
When "PS/2 mouse support" is enabled, your PS/2 mouse is automati-
cally detected by the system.
2.14 FDD connector (CN14)
You can attach one 3.5" floppy drive to the the PCM-3350's onboard
controller. This is useful for notebooks, for example.
A daisy-chain drive cable converter (part no. 9681000044) is required
for a single floppy system. A 34-pin flat-cable connector is fitted on
one end of the cable converter, while the other end has one floppy disk
drive connector. It consists of a 34-pin flat-cable connector (for the
3½” drives).
2.13.1 Connecting the floppy drive
1. Plug the 34-pin flat-cable connector into the cable converter. Make
sure that the red wire corresponds to pin 1 on the connector.
2. Attach the appropriate conector at the other end of the cable to the
floppy drive(s). You can use only one connector in the set. The set
at the other end (after the twist in the cable) connects to the A:
drive.
When connecting a 3½” floppy drive, you may have some difficulties
in determining which pin is number one. Look for a number on the
circuit board indicating pin number one. In addition, you should check
if the connector on the floppy drive has an extra slot. If the slot is up,