
1 9 9 1   S           S C O R P I O   9    MICROPOLIS
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/FH              Cylinders    4356|     |     |
Capacity form/unform  9100/10741 MB        Heads          27|     |     |
Seek time   / track  12.0/ 2.0 ms          Sector/track     |     |     |
Controller           SCSI2 SI/FAST         Precompensation
Cache/Buffer           512 KB SEGMENTED    Landing Zone
Data transfer rate          MB/S int       Bytes/Sector      512
                     10.000 MB/S ext SYNC
Recording method     RLL                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C        10 50    |    -40 65
Power: sleep              W     Humidity     %        10 90    |     10 90
       standby            W     Altitude    km    -0.061  3.048| -0.305 15.240
       idle          31.0 W     Shock        g         8       |     30
       seek          32.0 W     Rotation   RPM      5400
       read/write         W     Acoustic   dBA        40
       spin-up            W     ECC        Bit   126,REED SOLOMON
                                MTBF         h    1000000
                                Warranty Month
Lift/Lock/Park     YES          Certificates



**********************************************************************
                        L   A   Y   O   U   T
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MICROPL. 1991 SCORPIO  PRODUCT DESCRIPTION 140165 REV. B, 1994

  +---------------------------------------------------------+
  |                                                         |XX
  |  Component Side                                         |XX J2
  |  No. 140212                                             |XX
  |                                                         |XX
  |  SINGLE-ENDED                                           |  1
  |                                                     RN2+|XX
  |                                                  W1** |||XX
  |                                                  W3** |||XX
  |                                                     W2++|XX
  |                                                     RN1+|XX J1
  |                                                       |||XX
  |                                                       |||XX
  |                                                       ++|XX
  |                                                         |XX
  |  +-+J11                                                 |  1
  |  +-+LED Connector             Frame Ground++W9          |XX J3
  |                                           ++            |XX
  +---------------------------------------------------------+  1






     +--------------------------------------+
     |         ++J4                         |
     |         ++                           |
     |    ++J5                              |
     |    ++                                |
     |                                      |
     |   J2             J1            J3    |
     +..........-XXXXXXXXXXXXXXXXXX-XXXXXXXX+
     +-Multi---1---Signal---------1--------1+
                                     Power



**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
MICROPL. 1991 SCORPIO  PRODUCT DESCRIPTION 140165 REV. B, 1994

 Jumper Setting
 ==============

 x = Factory default


 J2  Multi-Function Connector
 ----------------------------

 Spindle Control Option SP0 -------+
 Spindle Delay Option SP1 ------+  |
 Write Protect Option--------+  |  |  +---------ID2
 Bus Parity Check Option--+  |  |  |  |  +------ID1
 Remote LED---+           |  |  |  |  |  |  +---ID0
 +5V ------+  |           |  |  |  |  |  |  |
          ++-++-+--+--+--++-++-++-++-++-++-++-+ +-----
          |23|21|19|17|15|13|11|09|07|05|03|01+-+
          |24|22|20|18|16|14|12|10|08|06|04|02+-+  J1
          ++-+-++-++-++-++--+--+--+--+--+--+--+ +-----
 RESERVED -+   |  |  |  + GROUND
 Remote LED +5V+  |  |
 Slave Sync Signal+  +Master Sync Signal (MS)


 Note: Pins 2, 4, 6, 8, 10, 12, 14 and 16 are tied to Ground.

 Pins: 24, 19, 17, and 15 are RESERVED.


 Multi-Function Connector J2 Pin Assignments
 -------------------------------------------
 +---+---------------+---+--------------+
 |Pin| Signal Name   |Pin|Signal Name   |
 +---+---------------+---+--------------+
 | 1 |ID0            | 2 |GROUND        |
 +---+---------------+---+--------------+
 | 3 |ID1            | 4 |GROUND        |
 +---+---------------+---+--------------+
 | 5 |ID2            | 6 |GROUND        |
 +---+---------------+---+--------------+
 | 7 |SP0            | 8 |GROUND        |
 +---+---------------+---+--------------+
 | 9 |SP1            |10 |GROUND        |
 +---+---------------+---+--------------+
 |11 |WPROT          |12 |GROUND        |
 +---+---------------+---+--------------+
 |13 |PARITY         |14 |GROUND        |
 +---+---------------+---+--------------+
 |15 |RESERVED       |16 |GROUND        |
 +---+---------------+---+--------------+
 |17 |RESERVED       |18 |MASTER SYNC MS|
 +---+---------------+---+--------------+
 |19 |RESERVED       |20 |SLAVE SYNC SS |
 +---+---------------+---+--------------+
 |21 |Remote LED     |22 |REMOTE LED +5V|
 +---+---------------+---+--------------+
 |23 |+5V            |24 |RESERVED      |
 +---+---------------+---+--------------+


 J2  SCSI ID
 -----------
   +----------+-----------------------+
   | SCSI ID  |        Jumpers        |
   |          | ID2   | ID1   | ID0   |
   +----------+-------+-------+-------+
   |    0     | OPEN  | OPEN  | OPEN  |
   |    1     | OPEN  | OPEN  | CLOSED|
   |    2     | OPEN  | CLOSED| OPEN  |
   |    3     | OPEN  | CLOSED| CLOSED|
   |    4     | CLOSED| OPEN  | OPEN  |
   |    5     | CLOSED| OPEN  | CLOSED|
   |    6     | CLOSED| CLOSED| OPEN  |
   |    7     | CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+

 Up to eight devices (the host and seven targets) can be attached to
 the SCSI bus. ID jumpers are used to assign one of the eight SCSI ID
 bits (0 through 7) to the drive.

 SCSI ID = 7; factory default configuration.

 In multiple-device systems, each drive must have its own unique ID
 bit.


 SP0/SP1  Spindle Control Option
 -------------------------------
 SP0 CLOSED
 SP1 OPEN   Spindle motor starts when START UNIT command is
            received.

 SP0 OPEN   (default)
 SP1 OPEN   Spindle motor starts at power-on.


 SP0/SP1  Spindle Delay Option
 -----------------------------
 SP1 CLOSED
 SP0 OPEN   Spindle start-up is delayed based on SCSI ID (12 seconds
            per ID).

 SP1 OPEN   (default)
 SP0 OPEN   Spindle motor starts at power on.


 Spindle Synchronization
 -----------------------
 The Rotational Position Locking field (MODE SELECT command, Page Code
 04h) is used to specify spindle synchronization operation.

 Unsynchronized: If the drive is set to Unsynchronized (RPL = 00b), it
 ignores the SLAVE SYNC signal.

 Slave: If the drive is set to Slave (RPL = 01b), it does not generate
 the MASTER SYNC signal or the SLAVE SYNC signal but synchronizes its
 index to the SLAVE SYNC signal supplied by an external source.
 Signal termination is placed on the SLAVE SYNC signal at the first
 and last drive in the chain only.

 Master: If the drive is set to Master (RPL = 10b), it generates the
 SLAVE SYNC output signal for use directly by the slave drives.
 Signal termination is placed on the SLAVE SYNC signal at the first
 and last drive in the chain only.

 Master Control: If the drive is set to Master Control (RPL = 11b), it
 generates the MASTER SYNC signal. This output is used by the
 controller to generate the SLAVE SYNC signal for the slaves.
 Signal termination is placed on the MASTER SYNC signal at the first
 and last drive in the chain only. Signal termination is placed on
 the SLAVE SYNC signal at the first and last drive in the chain only.


 WPROT  Write Protect Option
 ---------------------------
 WPROT CLOSED  Drive is write protected.
 WPROT OPEN    Drive is not write protected. (default)


 PARITY  Bus Parity Check Option
 -------------------------------
 PARITY CLOSED  Drive neither generates nor detects parity.
        OPEN    Drive generates parity and has parity detection
                enabled. (default)


 RN1/RN2  Interface Termination
 ------------------------------
 Terminators INSTALLED (default)
             Drive provides termination for the interface lines.

 Terminators OMITTED
             Drive does not provide termination for the interface
             lines.


 W1/W2/W3  Bus Termination Power Option
 --------------------------------------
   +---+   +---W2  +---+
  W1xxx|   |o X|   |o o|
   |o o|   |o X|   |xxxW3
   +---+   +---+   +---+

 W1  CLOSED (default)
     Drive provides terminator power to RN1 and RN2.

 W2  CLOSED
     Host system provides terminator power (via J1, pin 26) to RN1 and
     RN2.

 W3  CLOSED
     Drive provides terminator power (via J1, pin 26) to the BUS.


 W9  Frame Ground Option
 -----------------------
 W9  CLOSED
     Frame ground is connected to logic ground.

 W9  OMITTED
     Frame ground is not connected to logic ground. (default)


 Remote LED Option
 -----------------
 LED (user supplied) connected to Remote LED.
     Both LEDs (on Device Electronics board and remote location) are
     enabled.

 Remote LED not connected
    LED on Device Electronics board enabled (default).



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                      I   N   S   T   A   L   L
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MICROPL. 1991 SCORPIO  PRODUCT DESCRIPTION 140165 REV. B, 1994

 Notes on installation
 =====================

 Recommended mounting orientation
 --------------------------------

            horizontally             vertically
         +-----------------+   +--+             +--+
         |                 |   |  +-----+ +-----+  |
         |                 |   |  |     | |     |  |
       +-+-----------------+-+ |  |     | |     |  |
       +---------------------+ |  |     | |     |  |
                               |  |     | |     |  |
                               |  |     | |     |  |
                               |  +-----+ +-----+  |
                               +--+             +--+

 Dimensions and Mounting
 -----------------------
 The drive uses industry-standard mounting techniques for 5 -inch
 full-height Winchester disk drives.

 The drive is designed such that the outer frame should be hard-
 mounted to the host equipment; no additional/external shock mounts
 should be used.

 Recommended orientation is vertical on either side, or horizontal
 with the Device Electronics board down; other mounting orientations
 may be used.

 No matter what mounting orientation is used, Micropolis specifies
 that the maximum HDA casting temperature not exceed 60*C (140*F).


 Mounting Screws
 ---------------
 2 per side 6-32 UNC-2B
 4 on bottom 6-32 UNC-2B

 Caution: The mounting screws must be selected so that they do not
 penetrate the bottom mounting holes by more than 0.20 inches or the
 side mounting holes by more than 0.156 inches. Screws that are too
 long may short to PCBA components.


 Interface Electrical Characteristics
 ------------------------------------
 Interface control and status signals are digital (open collector TTL)
 using industry-standard transmitters and receivers which provide
 a terminated, single-ended system.

 For active termination, the assigned signals are terminated with 110
 ohms to +2.85V (nominal). For passive termination, the signals are
 terminated with 220 ohms to +5V (nominal) and 330 ohms to ground. All
 signals use open-collector or tri-state drivers.

 Single-ended drivers and receivers allow a maximum cable length of
 six meters (primarily for connection within a cabinet).
 Signal transmission requires a single 50-conductor (flat or twisted
 pair) cable. A characteristic impedance of 100 ( 10%) ohms is
 recommended.

   a. Input Characteristics

      Each of the drive's signal receivers has the following
      characteristics when measured at the interface connector.

      1) Low-level input voltage (Signal true) = 0.0 VDC to 0.8 VDC

      2) High-level input voltage (Signal false) = 2.0 VDC to 5.25 VDC

      3) Low-level input current = -0.4 milliamps at 0.5 VDC

      4) High-level input current = 0.1 milliamps at 2.7 VDC

      5) Minimum input hysteresis = 0.2 VDC

      6) Maximum input capacitance = 25 pF

   b. Output Characteristics

      Each of the drive's signal drivers has the following
      characteristics when measured at the interface connector.

      1) Low-level input coltage (Signal assertion) = 0.0 VDC to 0.5
                                                      VDC
      2) High-level input voltage (Signal negation) = 2.5 VDC to 5.25
                                                      VDC
      3) Minimum driver output capability = 48 milliamps (sinking) at
                                            0.5 VDC.

   c. Terminator Power (TERMPWR at Pin 26)

      Terminator Power has the following requirements:

      V(TERM) = 4.25 VDC to 5.25 VDC

      800 milliamps minimum source drive capability, with 1.0 amp
      recommended current limiting (e.g., a fuse).

      1.0-milliamp maximum bus loading (except for the purposes of
      providing power to an internal terminator).

 The drive provides keyed connectors to prevent accidental grounding
 or misconnection of terminator power.


 Signal Connector J1
 -------------------
 J1 is a 50-pin interface connector. The signals on J1 include the
 8-bit SCSI bus and various control and handshaking lines.

 Recommended Cable:    3M Scotchflex 3365/50 or equivalent
 Mating connector:     3M P/N 3425-3000 or equivalent


 J2 24-Pin Option Connector
 --------------------------
 J2 is a 24-pin, multi-function connector/jumper block. This
 connector is used for device addressing and various other options.

 Recommended mating connector: Dupont 90311-024 or equivalent
 Pins:                         Dupont 77138-001
 Suggested wire size:          26 - 30 AWG for all pins


 2-pin Option Connector (Individual signals; e.g. LED, etc.)
 -----------------------------------------------------------
 Recommended mating connectors: Dupont 69305-002 or equivalent
 Pins:                          Dupont 77138-001
 Suggested wire size:           26 - 30 AWG for all pins


 SCSI ID Connector (6-pin)
 -------------------------
 Recommended mating connector: Dupont 90311-006 or equivalent
 Pins:                         Dupont 77138-001
 Suggested wire size:          26 - 30 AWG for all pins


 4-Pin Option Connector (Spindle Synchronization)
 ------------------------------------------------
 Recommended mating connector: Dupont 90311-004 or equivalent
 Pins:                         Dupont 77138-001
 Suggested wire size:          26 - 30 AWG for all pins


 J3  DC Power Connector
 ----------------------
 J3 is a 4-pin connector used to supply +5V and +12V to the drive.

    Mating Connector:   AMP 1-480424-0 or equivalent
                Pins:   AMP 350078-4
 Suggested Wire Size:   18 AWG

 Pin 1  +12 V
 Pin 2  +12 Return
 Pin 3  + 5 Return
 Pin 4  + 5 V


 Ground Connectors J4 and J5
 ---------------------------
 3/16-inch spade lugs J4 and J5 are provided for grounding. Systems
 characteristics determine proper ground connection.

 Mating connector: AMP 60972-2 or equivalent.


 Multiple-Drive Systems
 ----------------------
                                             Drive #1
  +------HOST------+                 +-----------------+
  | +-----------+  +--+-SCSI-BUS-----+ J1              |
  | |Terminators|  |  |       +------+ J3   J4/J5      |
  | +-----------+  |  |       |      +--------+--------+
  |                |  |       |               +------------------+
  +----------------+  |       |              Drive #2            |
                      |       |      +-----------------+         |
                      +-------+------+ J1              |         |
                      |       o------+ J3   J4/J5      |         |
                      |       |      +--------+--------+         |
                      |       |               +------------------+
                      |       |              Drive #3            |
                      |       |      +-----------------+         |
                      +-------+------+ J1              |         |
                      |       o------+ J3   J4/J5      |         |
                      |       |      +--------+--------+         |
                      |       |               +------------------+
                      |       |              Drive #4            |
                      |       |      +--------------+--+         |
                      +-------+------+ J1           |T |         |
                              o------+ J3   J4/J5   +--+         |
           --DC-Voltages------+      +--------+--------+         |
           ---GROUND--------------------------+------------------+

 T = TERMINATORS

 Terminators are installed ONLY in the last physical drive in the
 control chain.

 Connectors J4 and J5 are provided for grounding; system character-
 istics determine the proper ground connection.


 Temperature Measurements
 ------------------------
 Micropolis specifies the maximum HDA casting temperature to be 60*C
 (140*F). Not exceeding this temperature will ensure that the
 head-to-media interface never exceeds its temperature limit.

 If the HDA casting temperature measurement cannot be made, the
 ambient air temperature around the drive must be kept at or below
 50*C (122*F).



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                      F   E   A   T   U   R   E  S
**********************************************************************
MICROPL. 1991 SCORPIO  PRODUCT DESCRIPTION 140165 REV. B, 1994


 Description
 -----------
 This Product Description describes the Micropolis model 1991 Rigid
 Disk Drive. This 1991 is a member of the Micropolis SCORPIO family of
 high-performance, 5 -inch, full-height Disk Drives.

 The drive provides OEMs with random-access, high-speed, data
 storage and meets the needs of diverse applications environments.
 The drive is ideal for high-capacity database environments and
 graphics, audio/video, and multi-media applications where very high
 capacity, low cost-per-megabyte storage is required.

 The drive is compatible with the "ANSI CCS" version and the "SCSI-2"
 version of the industry-standard Small Computer System Interface
 (SCSI) specification.


 DIFFERENTIAL INTERFACE IS OPTIONAL. (It does't exist a Manual about
 the differential 1991.)

 Some Features of the Drive
 --------------------------
 - Positive media protection is achieved during spin down (due to a
   STOP UNIT command or power off) by automatically retracting and
   locking the positioner in a data-free landing zone.

 - N-Segment Read-Ahead algorithm improves read performance by
   allowing many accesses to be serviced from the cache buffer (512K
   or optional 2MB).

 - Optional, Write-Behind Caching provides dramatic improvement in
   write performance by appending multiple write commands per disk
   revolution.

 - In-Line Defect Management (sector slipping) provides maximum
   throughput.

 - Data Integrity is ensured with CRC through the buffer, 126-bit
   Reed-Solomon ECC on-the-fly, and automatic retries using servo and
   data strobe offsets.


 Media Defects
 -------------
 Media defects are physical characteristics of the media which result
 in repetitive read errors when a functional drive is operated within
 specified operating conditions.

 At the time of manufacture, a media test system evaluates every
 drive and identifies each media defect location. The defective
 areas are identified by head address (HD), cylinder address (CYL),
 and number of bytes from Index (BFI).

 The list of manufacturer-found defects is stored on the drive in a
 reserved, write-protected area accessible by the SCSI controller.
 This list is known as the MDL (Manufacturers Defect List) or PList
 (Primary Defect List). A printed listing of the defects is also
 shipped with each drive. The entries it contains can be mapped out
 (reassigned) automatically at format control parameter bits.


 Seek Time
 ---------

                                          | 1991   |
        ----------------------------------+--------+
        Track-to-Track         msec. typ. |   1.5  |
        ----------------------------------+--------+
                       Average msec. typ. |  12    |
        ----------------------------------+--------+
                               msec. max. |  26    |
        ----------------------------------+--------+
        Latency                msec. avg. |   5.56 |
        ----------------------------------+--------+


 Recording Media
 ---------------
 Aluminium disks, each 130 millimeters (5 -inches) in diameter, are
 mounted on the spindle assembly. The recording surface on each disk
 is a thin coating of magnetic material.


 Air Filtration System
 ---------------------
 The drives are designed to provide contamination control within the
 HDA throughout the life of the drive with zero maintenance.

 Air within the HDA is continuously recirculated and filtered through
 a high efficiency filter. Air is ducted to and from the filter for
 maximum pressure recovery and filter efficiency. Air within the HDA
 may only enter the drive through a high-efficiency breather filter.


 Braking
 -------
 The heads contact a start/stop (landing zone) area of the disk
 surface which is not used for data storage when the disk are not
 spinning and during start and stop cycles. Dynamic braking is used to
 stop the spindle quickly.


 Frame (Outer Chassis)
 ---------------------
 The HDA is suspended within the outer frame on shock isolators/
 absorbers. This method of construction protects the HDA from
 mounting-related disortion or stress, and shock and vibration. The
 drive is designed such that the outer frame should be hard-mounted to
 the host equipment; no additional/external shock mounts should be
 used.


 Loadable Code
 -------------
 The drive can electronically download SCSI Firmware via the SCSI
 interface.


