HP Surestore 2200mx HP SureStore 220mx Optical Jukebox User's Guide - Page 104

low-voltage differential, magneto-optical, mailslot, multifunction drive, optical disk, optical disk

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low-voltage differential SCSI A differential SCSI that uses lower voltage swings and is less susceptible to noise than previous differential SCSI signalling. LVD enables faster data burst rates and longer cable lengths. This form of differential uses 3.3V signal levels. LVD See low-voltage differential SCSI M-O magneto-optical A type of optical technology which uses a laser to read from and write to a magnetic layer on an optical disk. To write, a spot on the magnetic layer is heated by a laser to a point where it can be magnetically altered by the write magnetic head. To read, a light from the laser is reflected from the spot. The magnetic alteration causes the reflected light to be polarized in one direction (interpreted as a "1") or the opposite direction (interpreted as a "0"). mailslot The area where disks are inserted and removed from the jukebox. multifunction drive An optical disk drive that supports both rewritable and write-once optical disks. The drive detects the disk type by reading a factory-stamped code on the disk, and automatically determines whether to operate in rewritable or write-once mode. optical disk A term synonymous with the 5.25-inch magneto-optical disk. There are two types of optical disks used in jukeboxes: rewritable and write-once. optical disk library See jukebox. R-T rear panel The rear panel of the jukebox provides two SCSI bus connectors that can be used for either single-ended or low-voltage differential bus connections. The rear panel also has the power connection and switch. 2

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2
low-voltage differential
SCSI
A differential SCSI that
uses lower voltage swings and
is less susceptible to noise than
previous differential SCSI
signalling. LVD enables faster
data burst rates and longer
cable lengths. This form of
differential uses 3.3V signal
levels.
LVD
See low-voltage
differential SCSI
M-O
magneto-optical
A type of
optical technology which uses a
laser to read from and write to
a magnetic layer on an optical
disk. To write, a spot on the
magnetic layer is heated by a
laser to a point where it can be
magnetically altered by the
write magnetic head. To read, a
light from the laser is reflected
from the spot. The magnetic
alteration causes the reflected
light to be polarized in one
direction (interpreted as a
“
1
”
)
or the opposite direction
(interpreted as a
“
0
”
).
mailslot
The area where disks
are inserted and removed from
the jukebox.
multifunction drive
An
optical disk drive that supports
both rewritable and write-once
optical disks. The drive detects
the disk type by reading a
factory-stamped code on the
disk, and automatically
determines whether to operate
in rewritable or write-once
mode.
optical disk
A term
synonymous with the 5.25-inch
magneto-optical disk. There are
two types of optical disks used
in jukeboxes: rewritable and
write-once.
optical disk library
See
jukebox.
R-T
rear panel
The rear panel of
the jukebox provides two SCSI
bus connectors that can be used
for either single-ended or
low-voltage differential bus
connections. The rear panel
also has the power connection
and switch.