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The NeXT CD-ROM Drive
Features and Benefits
Front-loading disc design
Quick and convenient access to the drive. Allows you to stack additional peripherals on top of the drive.
Auto-loading and eject mechanism
Allows simple disc insertion and automated disc eject when the computer has completed using the data on the disc.
High Sierra, ISO-9660 and Rockridge file format compatibility
Allows you to work with discs produced in industry-standard formats.
Universal power supply
Allows you to take the CD-ROM drive anywhere in the world. Automatically switches from 100V to 240V.
Integrated 64-kilobyte RAM cache buffer
Improves the transfer rate of data to the computer, which is important when reading large image or text files.
680 MB capacity
Large enough for full system software releases. Unlike having a software release on floppies, the single CD-ROM is convenient for updating your hard disk. You don’t have to constantly swap floppies.
Audio compatibility
Allows music to be played from standard music CDs from either the RCA jacks or from the headphone jacks with appropriate software. The headphone volume is easily adjusted from the front of the drive.
Leveraged network sharing
Allows drive to be shared across the network, enabling all network users to access data and applications, and to update to new system software from a single drive.
NEXTSTEP system software distributed on CD-ROM discs
Low-cost and convenient way to update to a newer software release.
Technical Specifications
12 cm Compact Disc options
- CD ROM Mode-1 data disc
- CD ROM Mode-2 data disc
- CD-Audio disc
- Audio-combined disc
Capacity
- Data: 680 MB
- Block size (bytes) 2048/1024/512
Characteristics
- Access Time: 380 ms (average)
Rotational Speed
- Inner tracks 530 rpm at CLV = 1.4 m/s
- Outer tracks 200 rpm at CLV = 1.4 m/s
- Buffer RAM: 64 KB
- Data Transfer Rate (Sustained): 150 KB/sec
- Data Transfer Rate (Burst): 1.5 MB
Electrical Requirements
- AC Line voltage: 100 to 240V
- Frequency: 50 to 60 Hz
- Power consumption: 0.25A
Dimensions
- 7 in. (w) x 1 3/4 in. (h) x 127/8 in. (d)
(177.5 mm x 44.0 mm x 325 mm)
- 6 lb. 6 oz. (2.9 kg)
Environmental Requirements
- Operating Temperature: 41°F to 113°F (5°C to 45°C)
- Operating Humidity: 10% to 90%
- Storage Temperature: 22°F to 131°F (-30°C to 55°C)
- Storage Humidity: 10% to 90%
Reliability
- Read error rate (including retry)
- ECC on: 1 block/1012 bits
- ECC off: 1 block/109 bits
- MTBF: 20,000 POH
Audio Output Level
- Line out: 9.5V at 47 kW
- Headphone: 9.55V at 32W
