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Enhanced versions of the SA900/901 Diskette Storage Drive.
Details performance, functional, and physical specifications for the SA800/801.
Covers capacity, transfer rate, latency, and access times for single/double density.
Details rotational speed, recording density, track count, and sector formats.
Outlines environmental limits, power requirements, and mechanical dimensions.
Covers MTBF, MTTR, component life, error rates, and media lifespan.
Describes drive components: read/write, mechanism, and positioning.
Lists components integrated onto the single drive PCB.
Explains spindle rotation and diskette clamping/registration.
Details head movement via a stepping motor and lead screw.
Describes the ceramic head, erase elements, and load pad.
Discusses data format's dependence on host system and application.
Lists customer installable options such as dust covers and write protect.
Differentiates SA800 models based on sectoring and data separation.
Details power-on delays and initial head positioning requirements.
Explains how a drive is selected and its impact on I/O lines.
Describes the process of moving the read/write head between tracks.
Details the 'Step Out' function and associated timing for head movement.
Details the 'Step In' function and associated timing for head movement.
Explains the sequence and timing required for reading diskette data.
Explains the sequence and timing required for writing diskette data.
Refers to timing diagrams for proper operation sequence.
Divides the interface into control and data transfer signal categories.
Details multiplexed and non-multiplexed input signals for the drive.
Explains methods for terminating multiplexed input lines on the interface.
Describes the four Drive Select lines for multi-drive systems.
Defines the control signal for read/write head movement direction.
Describes the control signal for initiating head movement steps.
Explains the signal that enables data writing to the diskette.
Provides the data bits to be written to the diskette.
Details the customer installable option for loading the read/write head.
Details the customer installable option for the activity LED.
Lists and describes standard and optional output signals from the drive.
Indicates when the read/write head is positioned at the outermost track.
Provides a pulse indicating the beginning of a track revolution.
Provides a pulse for each sector hole detected on the diskette.
Indicates when the drive is ready to accept commands or has a diskette.
Provides the raw detected data and clock signals.
Provides separated data bits from the internal data separator.
Provides separated clock bits from the internal data separator.
Indicates if the diskette is protected from writing.
Signals when a diskette has been removed or inserted.
Mentions interface pins available for customer installable options.
Covers AC and DC power requirements for drive operation.
Details AC power input voltage, current, and frequency tolerance.
Outlines DC voltage supplies, tolerances, current, and ripple specifications.
Describes the 50-pin edge card connector and its dimensions.
Describes the 6-pin DC power connector and mating connector.
Describes the 3-pin AC power connector and mating connector.
Refers to a figure for the overall mechanical dimensions of the drive.
Discusses options for mounting the drive vertically, horizontally, or upright.
Details the factory default vertical mounting configuration.
Provides instructions for mounting the drive in an upright position.
Describes the optional accessory chassis slide kit for mounting.
Lists available decorative face plates and painting guidelines.
Explains how to multiplex up to eight drives using binary addressing.
Option to select drive without loading head, extending life.
Option for seek operation with door open, without head loaded.
Option to keep heads loaded, reducing head load time for copy operations.
Enables monitoring of the Ready line for diskette insertion/removal detection.
Enables monitoring of Index/Sector lines for reduced average latency.
Allows configuration for 8, 16, or 32 sector pulses per revolution.
Details the option to activate the drive's Activity LED.
Option to report write protection status without inhibiting writing.
Provides a signal indicating a diskette change condition.
Provides guidance on proper methods for loading and handling diskettes.
Explains how to use the diskette notch to enable write protection.
Describes write errors, checks, and recovery procedures.
Details soft read errors and recommended recovery steps.
General| Disk Diameter | 8 inches |
|---|---|
| Rotational Speed | 360 RPM |
| Interface | Shugart Associates System Interface (SASI) |
| Recording method | MFM (Modified Frequency Modulation) |
| Tracks per inch | 48 |
| Sectors per track | 32 |
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