Chapter 3 Connecting Peripherals - Advantech PCA-6143P User Manual

You can attach up to two floppy disk drives to the PCA-6143P's
on-board controller. You can use any combination of 5.25"
(360 KB and 1.2 MB) and/or 3.5" (720 KB and 1.44 MB) drives.
The card comes with a 34-pin daisy-chain drive connector cable.
On one end of the cable is a 34-pin flat-cable connector. On the
other end are two sets of floppy disk drive connectors. Each set
consists of a 34-pin flat-cable connector (usually used for 3.5"
drives) and a printed-circuit-board connector (usually used for
5.25" drives). You can use only one connector in each set. The set
on the end (after the twist in the cable) connects to the A: floppy.
The set in the middle connects to the B: floppy.
Attach the single 34-pin flat-cable connector to CN2 on the CPU
card. For help finding the connector, see Chapter 1 (page 5). Wire
number 1 on the cable is red or blue, the other wires are gray.
Make sure that the red wire corresponds to pin one on the connec-
tor (on the right side).
Connect the A: floppy drive to the connector set on the other end
of the cable. If you are connecting a 5.25" floppy drive, line up the
slot in the printed-circuit-board (golden fingers) with the blocked-
off part of the cable connector.
If you are connecting a 3.5" floppy drive, you may have trouble
determining which pin is number one. Look for a number printed
on the circuit board indicating pin number one. Also, the connector
on the floppy drive connector 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.
Next, if required, connect the B: floppy drive to the connectors in
the middle of the cable as described above.
If you need to make your own cable, you can find the pin assign-
ments for the card's connector in Appendix D.

Chapter 3 Connecting peripherals

15