Tandberg Data VXA-320 (VXA-3) - Manual (Page 68)

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P RODUCT M ANUAL 433689-01
C
HAPTER
7 S
PECIFICATIONS
DC Voltages
The internal tape drive operates from standard +5 and +12 VDC supply
voltages (all specified voltages are DC, no external AC power is used).
Note: The VXA-320 tape drive does not provide overvoltage or overcurrent
protection, except for TERMPWR, which has a resettable fuse. Safety
agency certifications are based on the voltages being supplied by a Safety
Extra Low Voltage (SELV) source (per IEC 950).
Power Consumption
Table 7-9 shows the internal tape drive’s power consumption when operating
and when idle.
E
XTERNAL
T
APE
D
RIVE
The power specifications for the external tape drive include both the
requirements for the tape drive and the enclosure components.
Table 7-8 Power specifications (internal model)
Power +5 Volts +12 Volts
Required supply tolerance: ±5% ±10%
Ripple and noise: (50 Hz to 20 MHz)
a
250 mVpp max. 250 mVpp max.
Operating current (amps)
Read or write: 1.25 (average) 1.27 (peak) 0.51 (average) 0.57 (peak)
Search/high speed: 1.11 (average) 1.22 (peak) 0.59 (average) 2.00 (peak)
Load/unload: 1.00 (average) 1.20 (peak) 0.45 (average) 2.00 (peak)
Power up: 0.90 (average) 1.17 (peak) 0.08 (average) 0.44 (peak)
Idle: 0.83 (average) — 0.06 (average) —
a The ripple voltage is included in the total voltage tolerance.
Table 7-9 Power consumption (internal model)
Power Consumption Power (average)
Read or write: 12.4 watts
Search/high speed: 12.7 watts
Load/unload: 10.4 watts
Power up: 5.5 watts
Idle: 4.9 watts