Exabyte VXA-2, Product Manual, Page: 68 / 90

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P
RODUCT
M
ANUAL
1009541
Chapter 8 S
PECIFICATIONS
DC Voltages
The internal tape drive operates from st5 and +12 VDC supply
voltages (all specified voltages are DC, no external AC power is used). Table 8-8
defines the power specifications.
Note: The VXA-2 tape drive does not provide overvoltage or overcurrent
protection, except for TERMPWR, which has a resettable fuse. Safety
agency certification per IEC-950 requires that the supplied voltages be
from a Safety Extra-Low Voltage source.
Power Consumption
Table 8-9 shows the internal drive’s power consumption when operating and
when idle.
Table 8-8 Power specifications (internal model)
Power +5 Volts +12 Volts
Required supply tolerance:
±
5%
±
10%
Ripple and noise: (50 Hz to
20 MHz)
a
125 mVpp max. 125 mVpp max.
Operating current (amps)
Read or write:
1.0 (average) 1.03 (peak) 0.37 (average) 0.37 (peak)
Search/high speed:
0.94 (average) 1.08 (peak) 0.46 (average) 2.08
b
(peak)
Load/unload:
0.90 (average) 1.10
c
(peak) 0.39 (average) 2.10
d
(peak)
Power up:
0.80 (average) 1.25
e
(peak) 0.10 (average) 0.52
f
(peak)
Idle:
0.88 (average) — 0.06 (average) —
a
The ripple voltage is included in the total voltage tolerance.
b
1.8 seconds maximum.
c
0.15 seconds maximum.
d
1.4 seconds maximum.
e
0.6 seconds maximum.
f
1.1 seconds maximum.
Table 8-9 Power consumption (internal model)
Power Consumption Power (average)
Read or write: 9.5 watts
Search/high speed: 10.3 watts
Load/unload: 9.2 watts
Power up: 5.2 watts
Idle: 5.2 watts