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B-12 System Specifications
Random Access
—
85 ms typical (max 32X)
—
110 ms typical (max 32X): including latency
Data Buffer Capacity — 128 Kbytes
Spin up, spin down, eject time
—
Spin up time — 4 sec
—
Spin down time — 4 sec
—
Eject time — 2.0 sec typical
Load time — 1.5 sec typical.
Voltage tolerance — +5V DC +/-5%; +12V DC +/-5%
Temperature
—
operating: 5° to 45°
—
non-operating: -20° to 60°
Humidity
—
operating: 10% to 80% (non-condensing)
—
non-operating: 5% to 90% (non-condensing)
Dimensions — H x W x L: 41.5 x 146 x 201 mm max
Weight — 0.958 Kg
NEC 32X CD-ROM drive
Model CDR-1900A/PBM
Capacity — 656 Mbytes (Mode 1), 748 MBytes (Mode 2)
Blocks per disk — 336,150
User data/block
—
2048 Bytes, Mode 1 and Mode 2 Form 1
—
2336 Bytes, Mode 2
—
2328 Bytes, Mode 2 Form 2