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Table 2.3 Environmental and power requirements (2 of 2)
Item Specification
Air flow (*3) Unused
Air purity General office environment or better
(dust perticles: Class 5 millions or less)
Note:
1. Current limiter value for +5 VDC power: 5 A or less
2. Specifications under transporting condition are under the packaging specified by
Fujitsu.
3. A voltage drop may occur depending on the used power supply or power cable.
*1 At random seek or read/write. Excluding pulse waveform under 500 µs or less.
*2 It demonstrates a power of 5.3 W in an installation environment of a temperature of 25°C,
voltage of 5 V and with terminating resistor turned off.
*3 The efficiency is specified in an environment of a temperature of 25°C and 0° horizontal
level placement.
*4 For details, refer to section 3.1.3 ‘Air Flow’
2.1.4 Error rate
Data blocks to be accessed are 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 cartridge 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)
Ambient for
purity