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2.1 Specifications of Optical Disk Drives
C156-E228-02EN 2-5
Table 2.3 Environmental and power requirements (2 of 2)
Item Specification
Operating 3.92 m/s
2
{0.4 G} (5 to 500 Hz, Sine Sweep)
Shock 19.6 m/s
2
{2 G} (10 ms, Half Sine Pulse)
Idle
No cartridge, power ON
9.8 m/s
2
{1.0 G} (5 to 500 Hz, Sine Sweep)
Shock 49 m/s
2
{5 G} (10 ms, Half Sine Pulse)
Vibration/
shock
Transport Shock 980 m/s
2
{100 G} (10 ms, Half Sine Pulse)
Requirement: Packing specifications specified by Fujitsu
Altitude Operating 3,000 m (10,000 ft) or less
Idle 12,000 m (40,000 ft) or less
Ambient
cleanliness
Air flow Not required
Air purity General office environment or better
(dust particle level: Class 5 million or less particle level)
*1 During random seek or read/write but excluding pulse waveform at 500 µs
or less
*2 Average value at an ambient temperature of 25°C and a voltage of 5 V
*3 The performance is specified at an ambient temperature of 25°C and level
placement at 0°.
Note:
1. The current limiter value on the power supply must not exceed 5 A.
2. The specifications for during transport are under the packaging conditions
specified by Fujitsu.
3. Note that, concerning the power requirements, a voltage drop may occur
depending on the power cable in use.
2.1.4 Error rate
Data blocks to be accessed should be evenly distributed on the disk. Errors due to
disk defects are not included.
(1) Bit error rate after ECC processing
The error rate after ECC processing must be 10
-12
or less. An optical disk whose
raw error rate is 10
-4
or less should be used.
(2) Positioning error rate
The positioning error rate must be 10
-6
or less (with retry).