Advantech PCA-6186 User Manual

You can access most of the connectors from the top of the board while it 
is installed in the chassis. If you have a number of cards installed or have 
a packed chasis, you may need to partially remove the card to make all 
the connections.

You can attach up to four IDE (Integrated Drive Electronics) drives to the 
PCA-6186’s built-in controller. The primary (CN1) and secondary (CN2) 
connectors 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 the other 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