Technical information

2.2.15 RRD40 Compact-Disc Subsystem
The RRD40 is a CD reader that retrieves data in fixed-length blocks from
removable compact-disc media.
Functional Information
Modes Idle mode
Operation mode: search, normal play
Orientation Horizontal
Ordering Information
RRD40–SF Field-installed tabletop CDROM drive
Performance
Motor stop time 30% of nominal speed within 30 seconds maxi-
mum, 5 seconds typical
Motor start time 90% of nominal speed within 20 seconds maxi-
mum, less than 11 seconds typical
Formatted capacity 525 Mbytes with maximum of 600 Mbytes
Average transfer rate 153.6 Kbytes/s, mode 1; 176.4 Kbytes/s, mode 2
Average latency 60 µs max inner track; 155 µs outer track
Initialization time 15 seconds maximum to sector zero
Physical Specifications
Height 27.6 cm (11.02 in)
Width 8.18 cm (3.27 in)
Depth 22.7 cm (9.06 in)
Weight 5.0 kg (11.0 lb)
Configuration Information
Power consumption 19.2 W max; Play mode: 18 W max
Related Documentation
EK–RRD40–OM RRD40 Disk Drive Owner’s Manual
EK–RRD40–SU RRD40 MicroVAX Monitor User’s Guide Updates
2–20 VAX 4000 Model 200 Technical Information