Micropolis 1991AV-Models

DRIVE SERIES SPECIFICATIONS

DRIVE SPECIFICATIONS - MODEL 1991AV

Formatted Capacity

Per Drive			9,090 MB
Bytes per Sector 512
Sectors per Track Variable
Cylinders 4,477

Performance

Data Rate

Max. Sustained			6.9 MB/sec
Min. Sustained 4.1 MB/sec
Avg. Seek Time (including settling time) 12 msec
Avg. Rotational Latency 5.56 msec
Rotational Speed 5400 rpm +/- 0.5%

Data Transfer Rate at Interface

Synchronous			up to 10 MB/sec
Asynchronous up to 5 MB/sec
Internal Data Rate 47 to 77 Mbits/sec
MTBF (power-on hours) 650,000
Positioner Fully balanced rotary voice coil
Parking Automatic park and lock

General Functional Specifications

Interface				Fast SCSI-2
Supports Full Common Command Set Yes
Drivers/Receivers 8-Bit ("Narrow") Single-Ended
(Model 1991WAV is 16-Bit Wide/Single-Ended)

Power Requirements

+12V +/-5% (average)			2.3 A
+12V +/-5% (max during start-up) 4.8 A
+5V +/-5% (average) 1.0 A
Power Dissipation, typical, idling 30 Watts
Power Dissipation, typical, seeking 33 Watts

Drive Configuration Information

(Board Layout and Jumper Options)

Drive Warranty Information