Quantum Fireball 1280

Disk Drive Configuration

Disks                            2
Heads/Surfaces                   4
Tracks per Surface               4,142
Sectors per Track                95 to 177
Bytes per Sector                 512
Track Density                    4,270
Encoding Method                  16/17 PRML

Performance Specifications

Average Seek                     12 ms
Track-to-Track                   3 ms
Full Stroke                      22 ms
Rotational Speed                 5,400 rpm
Rotational Latencey              5.56 ms
Disk-to-Buffer Data Rate         84 Mb/sec
Buffer Size                      128KB
Host Data Transfer Rate          10 MB/sec

Environmental Limits

Operating Temperature            0 to 55 degrees C
Non-Condensing Humidity          5 to 85 %
Shock                            10 G, 11ms
Vibration                        1 G, peak-to-peak
Altitude                         -650 to 10,000 ft.
Non-Operating Temperature        -40 TO 75 degrees C
Non-Condensing Humidity          5 to 95 %
Shock                            70 G, 11ms
Vibration                        2 G, peak-to-peak
Altitude                         -650 to 40,000 ft.

Physical Dimensions

Width - inches / mm              4.0 / 101.6
Length - inches / mm             5.75 / 146.1
Height - inches / mm             1.0 / 25.4
Weight - pounds / kg             1.2 / 0.55

Power Specifications

	                +5VDC         +12VDC
Idle                     310 mA        220 mA
Random Seeking           400 mA        710 mA