
1 3 5 4 A    MICROPOLIS
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/FH              Cylinders    1024|     |     |
Capacity form/unform   132/  149 MB        Heads           7|     |     |
Seek time   / track  23.0/ 5.0 ms          Sector/track   36|     |     |
Controller           ESDI                  Precompensation
Cache/Buffer               KB              Landing Zone
Data transfer rate    1.250 MB/S int       Bytes/Sector      512
                            MB/S ext
Recording method     RLL 2/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C        10 50    |    -40 65
Power: sleep              W     Humidity     %        10 90    |     10 90
       standby       29.0 W     Altitude    km    -0.061  3.048| -0.305 15.240
       idle               W     Shock        g         3       |     50
       seek          35.0 W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA        51
       spin-up            W     ECC        Bit
                                MTBF         h      30000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

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                        L   A   Y   O   U   T
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MICROPL. 1350 SERIES  PRODUCT DESCRIPTION 103551 REV. B


  +---------------------------------------------------------+
  |                                                         |
  |                                      Interface   +--+   |X1 J1
  |  COMPONENT SIDE                      Terminator  |  |RN1|XX
  |                                                  |  |   |XX
  |                                                  +--+   |XX
  |                                                         |XX
  |                                                         |XX
  |                                               DA3+-+    |XX
  |                                               DA2| |    |
  |                                               DA1| |    |X1
  |                                               W5 | |    |XX J2
  |                                               W4 | |    |XX
  |                                               W3 | |    |XX
  |                                               W2 +-+    |XX
  |                                               W1        |XX
  |                                                         |
  +---------------------------------------------------------+






     +--------------------------------------+
     |       ++J4                           |
     |       ++                             |
     |          ++J5                        |
     |  J3 Power++                          |
     |  XXXXXX1                             |
     |      J2             J1               |
     |  XXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXX  |
     +--------------1--------------------1--+
      Data Transfer     Control Signal



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                      J   U   M   P   E   R   S
**********************************************************************
MICROPL. 1350 SERIES  PRODUCT DESCRIPTION 103551 REV. B

 Jumper setting
 ==============

 x = Jumper set at factory


 Drive Select  DA3/DA2/DA1
 -------------------------
  +--------+------------------------+
  |Drive   |    Select Jumpers      |
  |Address |   DA3    DA2    DA1    |
  +--------+------------------------+
  |x 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 |
  +--------+------------------------+

 "Drive Address 0" is used as a "deselect" (i.e., no drive is
 selected).

 The three Drive Select interface lines are decoded to select the
 correspondingly addressed drive to the host controller/formatter. In
 multiple-drive systems, each drive must have its own unique address.

 Terminator Pack RN1 provides proper termination for the interface
 lines. When daisy-chaining multiple 1350 drives, the terminator is
 installed only in the last drive on the daisy chain.


 W1  Hard- or Soft-sectored mode
 -------------------------------
     CLOSED  The drive is configured to operate in the SOFT-SECTORED
             mode. Address mark generation and detection are enabled,
             and the Sector/Address Mark Found interface signal is
             used to report address mark found. Sector size is
             selected by the host controller.
     OPEN    The drive is configured to operate in the HARD-SECTORED
             mode. The Sector/Address Mark Found interface signal is
             used to transmit sector pulses to the host controller.
             (Factory default)

 Sector pulses are derived from the servo disk. The number of sector
 pulses generated is equal to:
           +      +
           |20,832|  Where 20,832 = byte clock derived from servo
        INT|------|                 disk
           |   n  |           INT = integer part of
           +      +             n = the number of bytes/sector
                                    (82 minimum)


 W2/W3/W4  Hard Sector Configuration
 -----------------------------------
     +--------+---------------------------+------------------------+
     |Sectors |     Bytes/Sector          |    Jumpers             |
     |        | Formatted   Unformatted   |  W4      W3      W2    |
     +--------+---------------------------+------------------------+
     |   35   |    512          595       |  OPEN    OPEN    OPEN  |
     +--------+---------------------------+------------------------+
     |   36   |    512          578       |  OPEN    OPEN    CLOSED|
     +--------+---------------------------+------------------------+
     |   19   |   1024         1096       |  OPEN    CLOSED  OPEN  |
     +--------+---------------------------+------------------------+
     |    9   |   2048         2314       |  OPEN    CLOSED  CLOSED|
     +--------+---------------------------+------------------------+
     |    5   |   4096         4166       |  CLOSED  OPEN    OPEN  |
     +--------+---------------------------+------------------------+
     |   32   |    512          651       |  CLOSED  OPEN    CLOSED|
     +--------+---------------------------+------------------------+
     |   64   |    256          325       |  CLOSED  CLOSED  OPEN  |
     +--------+---------------------------+------------------------+
     |    1   |  20832        20832       |  CLOSED  CLOSED  CLOSED|
     +--------+---------------------------+------------------------+

 The number of bytes/sector may be specified using the Set Bytes Per
 Sector command or by selecting a default sector configuration with
 option jumpers W2, W3, and W4.


 W5  Spindle Control Option
 --------------------------
     CLOSED  The drive must wait for a Start Spindle command to start
             the spindle motor.
     OPEN    The drive automatically starts the spindle motor at
             power-on. (Factory default configuration)


 J3   DC Power and pin connector assignments
 -------------------------------------------
      +------------+   pin 1    +12 VDC
      | 4  3  2  1 |   pin 2    +12 Return
      +------------+   pin 3    + 5 Return
                       pin 4    + 5 VDC


 J4/J5  Ground Connectors
 ------------------------
 1/4-inch spade lugs J4 and J5 are provided for grounding.



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                      I   N   S   T   A   L   L
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MICROPL. 1350 SERIES  PRODUCT DESCRIPTION 103551 REV. B

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

 Drive mounting
 --------------

     horizontally             vertically
   +-----------------+   +--+             +--+ +------------------+
   |                 |   |  +-----+ +-----+  | |                  | x
   |                 |   |  |     | |     |  | x+----------------+x
 +-+-----------------+-+ |  |     | |     |  | ||x              x||
 +---------------------+ |  |     | |     |  | ||  x          x  ||
                         |  |     | |     |  | ||    x      x    ||
      x           x      |  |     | |     |  | ||      x  x      ||
 +------x------x-------+ |  +-----+ +-----+  | ||       xx       ||
 +-+------x--x-------+-+ +--+             +--+ ||     x    x     ||
   |       xx        |                         ||   x        x   ||
   |     x    x      |                         || x            x ||
   +---x--------x----+                         |x                x|
     x            x                           x++----------------++x


 Dimensions and Mounting
 -----------------------
 Recommended orientation is vertical on either side, or horizontal
 with the Device Electronics board down; other mounting orientations
 may be used provided the ambient air temperature around the drive is
 kept at or below 46*C (115*F).

 In as much as the frame  of the drive acts as a heat sink to
 dissipate heat from the unit, the enclosure and mounting structure
 should be designed to allow natural convection of heat around the HDA
 and outer frame. If the enclosure is small or natural convetion is
 restricted, a fan may be required.

 The 1350 Series uses industry-standard mounting 5 -inch Winchester
 disk drives (the same as for 5 -inch flexible disk drives).


 Mounting Screws
 ---------------
 2 per side 6-32 UNC-2B x 0.25 deep.
 4 on bottom 6-32 UNC-2B x 0.25 deep.

 The length of the mounting screws must be such that the screws do not
 penetrate the mounting holes by more than 0.25 inch. Maximum torque
 applied to the screws must not exceed 10 in-lbs.


 Control Signal Connector J1
 ---------------------------
 J1 is a 34-pin board-edge connector on the Device Electronics board.
 The signals on this connector control the drive and transfer drive
 status to the host controller.

 Recommended Cable: 3M Scotchflex 3365/34
 Mating Connector:  3M Scotchflex 3463-0001 (key slot between pins 4
                    and 6)


 Data Transfer Connector J2
 --------------------------
 J2 is a 20-pin board-edge connector on the Device Electronics board.
 The signals on this connector contain read or write data.

 Recommended Cable: 3M Scotchflex 3365/20
 Mating Connector:  3M Scotchflex 3461-0001 (key slot between pins 4
                                            and 6)


 DC Power Connector J3
 ---------------------
 J3 is a 4-pin, keyed AMP MATE-N-LOCK Connector on the Motor Control
 board. DC power (+5V and +12V) is supplied to the drive via this
 connector.

 Mating Connector: AMP 1-480424-0
             Pins: AMP 350078-4

 Suggested Wire Size: 18 AWG


 Ground Connectors J4/J5
 -----------------------
 1/4-inch spade lugs J4 and J5 are provided for grounding; system
 characteristics determine the proper ground connection.

 Mating Connector: AMP 62187-1 or equivalent.


 Daisy-Chaining the 1350 Drive
 ------------------------------

   +-HOST-------+                  +---------------+
   | CONTROLLER +--CONTROL---o-----+ J1   Drive #1 |
   |            |  +DATA-----+-----+ J2            |
   |            |  |         |  +--+ J3  J4/J5     |
   |            |  |         |  |  +-------+-------+
   |            |  |         |  |          +-------------+
   |            |  |         |  |  +---------------+     |
   |            |  |         o--+--+ J1   Drive #2 |     |
   |            |  |  +DATA--+--+--+ J2            |     |
   |            |  |  |      |  o--+ J3  J4/J5     |     |
   |            |  |  |      |  |  +-------+-------+     |
   |            |  |  |      |  |          +-------------o
   |            |  |  |      |  |  +---------------+     |
   |            |  |  |      o--+--+ J1   Drive #3 |     |
   |            |  |  |   +--+--+--+ J2            |     |
   |------------|  |  |   |  |  o--+ J3  J4/J5     |     |
   |            |  |  |   |  |  |  +-------+-------+     |
   |            +--+  |   |  |  |          +-------------o
   | DATA       +-----+   |  |  |  +---------------+     |
   | SEPARATOR  +-DATA----+  +--+--+ J1   Drive #4 |     |
   |            +----DATA-------+--+ J2       +----+     |
   |            |               o--+ J3  J4/J5|RN1 |     |
   +------------+               |  +-------+--+----+     |
                                |          |             |
       DC VOLTAGES -------------+          |             |
            GROUND ------------------------o-------------+

 Interface Terminator RN1 is installed ONLY in the last physical
 drive in the control chain.


 Up to seven 1350-Series drives may be connected to a single host
 controller/formatter. Control signals at J1 are transmitted via
 standard, daisy-chain interconnection. Data signals at J2 are
 transmitted via radially connected data-transfer lines.


 Interface Electrical Characteristics
 ------------------------------------
 The signals at Control Signal Connector J1 control the drive and
 transfer drive status to the host controller. The signals are low-
 true at the interface, high-true into drivers and out of receivers,
 and have the following logic levels:

 True  = 0.0 VDC to 0.4 VDC @ I = -48 milliamps (maximum)
 False = 2.5 VDC to 5.25 VDC @ I = +250 microamps (open collector)

 All interface data transfer signals are differential in nature.

 Up to seven drives can be connected to one host controller/formatter.
 Drive Select 1, 2 and 3 carry the binary-coded addres of the drive to
 be selected. The address of the drive is set with drive selection
 jumpers DA1, DA2, and DA3 as a binary combination. When the address
 is decoded and the decoded value matches the value specified by the
 three drive-selection jumpers, that drive is enabled to receive
 commands and transmit status. Drive Select 1 is the least significant
 bit.


 Adjustments and Maintenance
 ---------------------------
 The 1350-series of drives requires no adjustments or periodic
 maintenance. Additionally, no mechanical adjustments are required to
 prepare the drives for handling or shipment.


 Field-Replaceable Components
 ----------------------------
 The concept of repair by replacement of complete functional
 components is utilized in the 1350 Series, resulting in an MTTR of
 less than 15 minutes.


 Air-Filtration System
 ---------------------
 Air is circulated throughout the clean area by disk rotation-induced
 flow. A ducted air-filtration system draws the air through a filter.
 The sealed area breathes to the outside via another filter for
 pressure equalization.


 Drive Motor
 -----------
 Spindle rotation s provided by a quiet, direct-coupled, brushless DC
 motor. Switching information for the electronic commuator is supplied
 by three Hall-effects sensors mounted within the drive-motor
 assembly.



**********************************************************************
                      F   E   A   T   U   R   E  S
**********************************************************************
MICROPL. 1350 SERIES  PRODUCT DESCRIPTION 103551 REV. B


 Micropolis 1350 Series high-performance, 5 -inch Winchester Disk
 Drives provide OEMs with high-speed, high-capacity, random-access
 storage. They are fully compatible with the Serial mode of the
 Enhanced Small Device Interface (ESDI) standard and are designed to
 meet the needs of diverse applications environments.


 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. A single defect is defined as being
 less than two bytes long. A multiple defect is defined as two bytes
 longer, or as a track with more than one single defect.

 At the time of manufacture, a media test system evaluates each 1320
 drive and identifies the location of each media defect. The defects
 are logged on a label affixed to the drive. Defective areas are
 identified by cylinder, head address, and number of Bytes from Index.
 A printout (listing) of the defects is also shipped with each drive.


 Micropolis specifies that all 1350 Series disk drives will have no
 more than one defect per megabyte of unformatted capacity. Addition-
 ally, Cylinder 0 shall be defect-free at the time of shipment.


 Seek Time
 ---------

                                          | 1350   |
        ----------------------------------+--------+
        Track-to-Track         msec. typ. |   5    |
                       Average msec. typ. |  23    |
        One-Third Stroke       msec.      |  25    |
                               msec. max. |  50    |
        Latency                msec. avg. |   8.33 |
                 Nominal       msec. max. |  16.67 |
        ----------------------------------+--------+


