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PRODUCT MANUAL 433689-01
CHAPTER 7 SPECIFICATIONS
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
Tab le 7- 9 shows the internal tape drive’s power consumption when operating
and when idle.
EXTERNAL TAPE DRIVE
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