Advantech PCA-6181, Manual, Page: 30 / 126

1 6 PCA-6181 User's Manual
2.1 Primary (CN1) and Secondary (CN2) IDE
Connectors
You can attach up to four IDE (Integrated Device Electronics) drives to
the IDE connectors. The primary (CN1) and secondary (CN2) connec-
tors can each accommodate two drives.
Wire number 1 on the cable is red or blue and the other wires are gray.
Connect one end to connector CN1 or CN2 on the CPU card. Make
sure that the red/blue wire corresponds to pin 1 on the connector (in
the upper right hand corner). See Chapter 1 for help finding the
connector.
Unlike floppy drives, IDE hard drives can connect in either position on
the cable. If you install two drives to a single connector, you will need
to set one as the master and one as the slave. You do this by setting
the jumpers on the drives. If you use just one drive per connector, you
should set each drive as the master. See the documentation that came
with your drive for more information.
Connect the first hard drive to the other end of the cable. Wire 1 on the
cable should also connect to pin 1 on the hard drive connector, which
is labeled on the drive circuit board. Check the documentation that
came with the drive for more information.
Connect the second hard drive to the remaining connector (CN2 or
CN1), in the same way as described above.
CN1
CN2