Advantech PCM-4862 Manual page 40

J29
Enable*
1 2 3
Disable
1 2 3
* = Default
Floppy disks
The Flash/ROM disk will replace the corresponding floppy disk.
For example, if you have a single floppy disk (drive A:) and assign
the Flash/ROM disk to be the 1st drive, any drive operations
directed at drive A: will go to the Flash/ROM disk. You will not be
able to access the floppy drive.
Hard disks
The Flash/ROM disk will not replace corresponding hard disks.
Instead, DOS will assign the Flash/ROM disk to the next free drive
designation. For example, if you have a single hard disk (drive C:)
and assign the Flash/ROM disk to be the 3rd drive, the Flash/ROM
drive will become drive D:. If you have two hard disks, the Flash/
ROM drive will become drive E:.
Floppy disks
The Flash/ROM disk will replace the corresponding floppy disk.
For example, if you have a single floppy disk (drive A:) and assign
the Flash/ROM disk to be the 1st drive, any drive operations
directed at drive A: will go to the Flash/ROM disk. You will not be
able to access the floppy drive.
Hard disks
The Flash/ROM disk will take the drive letter of the hard disk and
DOS will assign the hard disk to the next available drive letter. For
example, if you have a single hard disk (drive C:) and assign the
Flash/ROM disk to be the 3rd drive, the Flash/ROM drive will
become drive C: and the hard disk will become drive D:. If you have
two hard disks, the Flash/ROM drive will become drive C:, the first
32 PCM-4862 User's Manual