FUJITSU MCJ3230AP - Manual (Page 29)

1.1 Features
C156-E205-01EN 1-3
(7) Dust resistance
The optical disk unit provides low-power consumption, eliminating the need for a
cooling fan. The top of the cartridge is sealed with film, and the bottom of the
optical disk unit is sealed with sheet metal, providing protection that is not
complicated.
The optical disk drive needs class 5 millions or less of the dust particles.
(8) Lower power consumption
The power consumption of the optical disk drive is 5.6 W (These power
consumption values are typical values during read and write operation.) These
drives do not use a fan.
The minimum power consumption is 0.7 W (typical value) during power save.
(9) Automatic spindle stop function
If access is not made within a certain time, this function stops disk rotation to
minimize dust accumulation on the disk. This function can be set that time by the
MODE SELECT command.
1.1.2 Reliability
(1) Mean time between failures (MTBF)
This drive features a 120,000 hour MTBF.
(2) Error recovery
For the error depending on the optical disk drive, recovery process is made by a
suitable retry. This drive features Reed-Solomon error correction (ECC) to assure
error-free operation.
(3) Automatic allocation of alternate data blocks
This drive features a function which automatically allocates alternate data blocks
to defective data blocks detected while data is being read from or written to an
optical disk.
1.1.3 Maintainability/operability
(1) Diagnostic function
This drive has a diagnostic function to check optical disk drive operations. The
diagnostic function facilitates test and restoration.
(2) Five-year service life (no overhaul)
This drive will not require overhaul within the first five years of installation if
appropriately handled, maintained, and cleaned as recommended.