Appendix 4: Controller
Specifications
Encoding Method
MFM (EV-390/391)
,,-..,
RLL (2,7) (EV-392)
Cylinders Per Drive
Up to 1024
Bytes Per Sector
512
Sectors Per Track
17 (EV-390/391)
26 (EV-392)
Head Selects
16
Drive Selects
2
,.-..,
Data Transfer Rate
5 Mbits/sec. (EV-390/391)
7.5 MBits/sec. (EV-392)
Write Precomp Time
12 nanoseconds
Max Cable Length:
Daisy Chain Control
20 feet
Data
20 feet
63