NEC D5146H Hard Drive 40mB 5.25"

Descrizione

Capacity	Formatted: 40.3 MB Unformatted: 51.24 MB
Configuration Information
Switches	Drive Address Switch: SW2-1 "on," all others "off" = addr 1 SW2-2 "on," all others "off" = addr 2 SW2-3 "on," all others "off" = addr 3 SW2-4 "on," all others "off" = addr 4 Terminating Resistor Switch: Serial configuration-set last drive SW1-1 "off" and SW1-2 thru 8 to "on." For other drives, set SW1-1 thru 8 to "off." Radial configuration-for all drives, set SW1-1 thru 8 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	4
Data Heads	8
Data Surfaces	8
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	Start = 25 sec max Stop = 30 sec max
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 = 27 watts

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