
Hardware Components
Mass Storage Devices
Chapter 9140
Optical Drives
IDE 48X CD-ROM Drive
The x4000 Workstation may have a 48X IDE CD-ROM drive, which
features:
• ATAPI commands
• Audio CD playback capability
It can play any standard audio CD or CD-ROM conforming to optical
and mechanical standards as specified in the Red, Yellow, Green, and
Orange Book.
• Application disk type
• CD-ROM data disk (Mode 1 and Mode 2)
• Photo-CD Multisession
• Mixed-mode CD-ROM (data and audio)
• CD-ROM XA, CD-I, CD-Extra, CD-R, CD-RW
Description
Data capacity 650 MB
Data transfer rate Sustained transfer rate (1X=150 KB/sec) Outerside:
7,200 KB/sec
Burst transfer rate:
PIO mode 4 - 16.6 MB/sec maximum
Single Word DMA Mode 2 - 8.3 MB/sec maximum
Multi Word DMA Mode 2 - 16.6 MB/sec maximum
Buffer memory size 128 KB
Access time Average stroke (1 / 3) 110 ms
Full stroke 180 ms
Rotational speed 2,048 bytes (Mode 1)
2,336 bytes (Mode 2)
Interface ATAPI
Power requirements 5 V, 1.2 A
12 V, 0.8 A
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