Diskette Drive Specifications; B-3 Power Supply Output Specifications; B-4 Specifications For Diskette Drives - NEC PowerMate VP75 User Manual

B-4 Specifications
Input voltage
Table Appendix B -3 lists the output power specifications for the power supply.
Table Appendix B -3 Power Supply Output Specifications
Pin
1
2
3
4

DISKETTE DRIVE SPECIFICATIONS

Table Appendix B -4 lists the specifications for the diskette drives.
Table Appendix B -4 Specifications for Diskette Drives
Features
Storage Capacity
Unformatted
Formatted
Recording Density
Bit density
Track density
Number of Cylinders
Number of Tracks
Recording Method
Disk Speed
Data Transfer Rate
Access Time
Average seek
Minimum seek
Head load
Dimensions
Height
Width
Depth
90V - 135V ~ 5.0A
180V - 265V ~ 3.0A
145 W
+5V, 18A Max
–5V, .3A Max
+12V, 4.2A Max
–12V, .3A Max
OSDA-90C 1.44-MB
2.0 MB
1.44 MB
17,434 bpi
135 tpi
80
160 (80 tracks x 2 sides)
MFM
300 rpm
500/250k bps
94 ms
3 ms
Non-head load
1.0 in. (25.4 mm)
4.9 in. (101.6 mm)
5.9 in. (150 mm)
100 ~ 120V 8.0A
200 ~ 240V 5.0A
200 W
+5V, 23A Max
-5V, .5A Max
+12V, 8A Max
-12V, .5A Max
FD-55GFR 1.2 MB
1.67 MB
1.2 MB
9870 bpi max
96 tpi
80
160 (80 tracks x 2 sides)
MFM/FM
360 rpm
500/250k bps
94 ms
3 ms
35 ms max
1.0 in. (25.4 mm)
5.7 in. (146 mm)
7.4 in. (190 mm)