Alpha Microsystems AM-990 Instrukcja serwisowa - Strona 11

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Slots 3, 4, 5, and 6 are used for installing peripherals that will be accessed through the

opening in the computer door. This includes devices like floppy disk drives and

magnetic tape drives that use removable media.

The first hard disk drive is mounted in slot 12, or slots 11 and 12 if it is a full-height

device. A second hard disk drive would be mounted in the next available slot above the

first disk drive. The hard disk drives are mounted in the lower part of the chassis for two

reasons: to make sure the weight in the chassis is properly distributed and to provide

easy access for both power and interface cables.

3.1Plastic Mounting Rails

The plastic mounting rails are the key to installing peripheral devices in your computer.

Two rails are required to mount a peripheral device.

universal; they can be mounted on either the right or left hand side of the peripheral.

The illustration showing the rail explains how it is installed on various types of

peripherals:

Besides the rails, the peripheral mounting kit includes both standard and metric screws

for compatibility with all of Alpha Micro's 51/4" peripherals.

PERIPHERAL MOUNTING RAIL

DWF-20652-00

SHORT

END

Use the top holes for mounting

full-height devices.

SHORT END

For Tandberg 1/4" streaming tape drives and all hard disk drives, mount the rails

with the short end pointing toward the rear of the computer cabinet.

LONG END

For Exabyte 8mm drives, floppy drives, and other drives (except Tandberg)

with removable media, mount the rails with the long end pointing toward the

rear of the computer cabinet.

Peripheral Mounting Rail

AM-990 VME Computer Service Manual

The rails (DWF-20652-00) are

LONG

END

Use the bottom holes for

mounting half-height devices.

MAC4 7 0

DSS-10523-00, Rev. A00