2-14
SUPER P6DBS/P6DBE/P6DBU/P6SBU/P6SBS/P6SBA/P6SBM Manual
2-10 Connecting Parallel Port, Floppy and Hard Disk
Drives
Use the following information to connect the floppy and hard disk drive cables.
• The floppy disk drive cable has seven twisted wires.
• A red mark on a wire typically designates the location of pin 1.
• A single floppy disk drive ribbon cable has 34 wires and two connectors to
provide for two floppy disk drives. The connector with twisted wires always
connects to drive A, and the connector that does not have twisted wires
always connects to drive B.
• An IDE hard disk drive requires a data ribbon cable with 40 wires, and a SCSI
hard disk drive requires a SCSI ribbon cable with 50 wires. A wide SCSI hard
disk drive requires a SCSI ribbon cable with 68 wires.
• A single IDE hard disk drive cable has two connectors to provide for two drives.
To select an IDE disk drive as C, you would normally set the drive select
jumper on the drive to DS1 (or Master). To select an IDE disk drive as D, you
would normally set the drive select jumper on the drive to DS2 (or Slave).
Consult the documentation that came with your disk drive for details on actual
jumper locations and settings.
• A single SCSI ribbon cable typically has three connectors to provide for two
hard disk drives and the SCSI adapter. (Note: most SCSI hard drives are
single-ended SCSI devices.) The SCSI ID is determined by jumpers or a
switch on the SCSI device. The last internal (and external) SCSI device
cabled to the SCSI adapter must be terminated.
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