Drive-To-Controller Interface - HP Vectra Reference Manual

Table 9.7
HP45817A Drive Performance
Formatted capacity/drive
Formatted capacity/sector
SectorlTrack
Data Transfer Rate
Track-to-Track Seek Time
Average Access Time
Maximum Seek
Latency
Rotational Speed
Recording Density
Flux Density
Track Density
Cylinders
ReadlWrite Heads
Servo Heads
Discs
Recording Scheme
Heat Dissipation
42.25 Mbyte (accessed as 2 20
Mbyte units)
512 bytes
17
5.0 Mbit/sec
10msec
40msec
80msec
8.33msec
3,600 RPM
+ / -
1
0
/0
9,848 BPI
9,848 FCI
960 tpi
971
5
1
3
MFM
24 watts typical
Drive-to-Controller Interface
The drive interfaces with the controller in three areas: the control
interface, the data interface and the DC power interface. The disc
drive receives control signals and transmits status signals over the
J
1/P1 connectors. Data signals are received and transmitted over
the J2/P2 connectors. The DC power connector is J3 and is a 4-pin
AMP "Mate-n-Lock" connector.
114 Disc Drives