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Orchestrating a brigher world

USA

D5126H Hard Drive

Capacity Formatted: 20.45 MB
Unformatted: 25.49 MB
Configuration Information
Switches Drive Address Switch:
SW1-1 "on," all others "off" = addr 1
SW1-2 "on," all others "off" = addr 2
SW1-3 "on," all others "off" = addr 3
SW1-4 "on," all others "off" = addr 4
Terminating Resistor Switch:
Serial configuration-SW2-1 thru 8 to "off" for all but last drive.
Set last drive's SW2-1 thru 8 to "on."
Radial configuration-SW2-1 thru 8 to "on" and SW1-8 (marked R) to "on."
Dimensions
Height 1.6 in/41.6 mm
Width 5.75 in/146 mm
Depth 8.0 in/203.2 mm
Weight 4.0 lb/1.8 KG
Disk Configuration
Disk Size 5.25"
Disks 2
Data Heads 4
Data Surfaces 4
Tracks/Surface 615
Track Density 700 tpi
Bit Density 9,600 bpi
Sectors/Track MFM = 17 RLL = 26
Record Method MFM
Rotational Rate 3,564 RPM
Start/Stop Time 15 sec typical
Environmental
Temperature Operating = 5° to 50° C Non-operating = -40° to 60° C
Humidity Operating = 8% to 80% Non-operating = 8% to 80%
Thermal Grad 10° C/Hr max
Shock Operating = 2 G (10 ms) Non-operating = 40 G (10 ms)
Vibration Operating = 0.2 G @ 0-60 Hz Non-operating = 0.5 G @ 0-60 Hz
Performance Specifications
Seek Times Average = 40 ms
Track to track = 18 ms
Maximum = 80 ms
Latency, Avg 8.3 ms
Interface ST506/412
Data Transfer 625 KB/sec
Power
Voltage Required +5V/+12V
Power Dissipation Read/write/seek = 20 watts
Reliability
MTBF 20,000 POH
MTTR < 30 minutes