Power Computing Power 100, User Manual

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Power 100/120 User Guide
41
4
Connecting Peripheral
Devices
4
Your computer has a number of ports for connecting peripheral devices such as printers,
storage devices, audio equipment, network cabling, and modems.
See ÒPower 100/120 OverviewÓ at the beginning of this manual for the location of the ports.
Using SCSI devices
Your computer has two separate SCSI busesÑone for the internal devices like the hard disk
and the optional CD-ROM drive and another for external devices. You can connect up to
seven devices in a
SCSI chain to each bus.
Connecting a SCSI device involves four steps:
■
Installing a software device driver (if one is required)
■
Setting the deviceÕs SCSI ID number
■
Ensuring proper termination
■
Connecting the device
Installing software device drivers
Some SCSI devices require special software called device drivers to operate with your
computer. If a device driver is required, it is normally supplied with the device; if you are
unsure whether one is required, contact the manufacturer of the device. Follow the
installation instructions supplied by the manufacturer. If a device driver is not supplied, you
can assume that the device does not need one.
Setting the SCSI ID
Each device in a SCSI chain requires a unique number called a SCSI ID, which the computer
uses to identify the device. In the internal bus, the computer itself is assigned SCSI ID 7 and
the internal hard disk is assigned SCSI ID 0. Every other device you install must have a
unique number from 1 to 6. (The internal CD-ROM drive, if installed, is assigned SCSI ID
3.)
In the external bus, each device must be assigned a unique SCSI ID from 0 to 7.
Chapter