M4
Data
M490E
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Features |
For
the ultimate in mid-range and
mainframe data interchange the
M490E provides a fast, reliable
way to access 3480, 3490 and 3490E
cartridges. Not much larger than
a shoe box, it has fully pressurized
air bearings and recording head
for precise tape guidance and
virtually no tape wear.
It features a high speed four-meter-per-second
tape search mode for rapid file
access. The M490E was designed
for use in automated tape libraries
which have to operate constantly
with nearly 100% duty
cycles. Available with FAST WIDE
SCSI or dual channel FIPS (Block
Multiplex Channel) interface it
attaches to any of today's (or
yesterdays) systems. The M490E
is also available with multiple
cartridge capability.
Technical Specs
Functional
Media
* ANSI 3480 standard and extended
length cartridges (E-tape)
Capacity (IDRC and E-tape)
* 800 MB (uncompressed) to 2.4
GB (compressed)* per cartridge
Format
* Read/write 36-track; read 18-track
Read/Write Tape Speed
* 2 meter/sec. (79 ips)
High-speed Search
* 4 meters/sec. (158 ips)
Rewind Time
* 2 sec. (minimum, BOT, wrap 2)90
sec. (max., EOT, wrap 1, E-tape)
End of wrap 2 approximately 2
sec.
Data Buffer
* 4 MB
Interface Options
* Single-ended or differential
Fast Wide SCSI 2, FIPS 60
Transfer Rates
Native
* 3 MB/sec.
Compressed
* 9 MB/sec.
Interface (burst)
* 20 MB/sec. SCSI, 4.5 MB/sec.
FIPS
Reliability
MTBF
* >40,000 hours
MTTR
* 30 minutes
Physical
(basic rack-mount unit)+
Weight
* 31 lb. (14.1 kg)
Dimensions
Width
* 8.55 inches (217 mm)
Height
* 5.0 inches (127 mm)
Depth
* 21.3 inches (541 mm)
Power
Power Consumption (basic unit)
* 210 VA maximum
Inrush Current (maximum)
* 35A
Supply
* 88 to 264 V a.c., 48 to 62 Hz
Power Factor
* Better than 0.96
Environmental
Operating Temperature
* 50 degrees F to 105 degrees
F
* (10 to 40 degrees C)
Storage Temperature
* 14 degrees F to 122 degrees
F
Humidity
(non-condensing)
* 8% to 85%
* 5% to 90%
Wet Bulb
(max., non-condensing)
* 78 degrees F (25.6 degrees C)
Altitude
* -1,000 to +10,000 ft (-300 to
+300m)
* Assumes 3:1 compression
+ When mounted vertically, up
to 3 drives can be fitted side
by
side in a 19-in. rack |
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