
5 1 9 M    ATASI
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/FH              Cylinders    1224|     |     |
Capacity form/unform   160/  191 MB        Heads          15|     |     |
Seek time   / track  20.0/ 5.0 ms          Sector/track   17|     |     |
Controller           MFM / ST506           Precompensation
Cache/Buffer               KB              Landing Zone
Data transfer rate    0.625 MB/S int       Bytes/Sector      512
                      0.625 MB/S ext
Recording method     MFM                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C        10 50    |    -40 60
Power: sleep              W     Humidity     %         8 80    |      5 95
       standby            W     Altitude    km    -0.305  3.000| -0.305 12.000
       idle          29.0 W     Shock        g         2       |     20
       seek          57.0 W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA        50
       spin-up       64.0 W     ECC        Bit
                                MTBF         h      20000
                                Warranty Month        12
Lift/Lock/Park     -            Certificates     CSA,FCC,IEC380,IEC435,UL47...


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PRIAM    514/519  OEM MANUAL P/N 308086 REV. A EC 10921 12/86

  +---------------------------------------------------------+
  |                +---------J4          Option   +---J13+  |XX
  |                +---------+           Connector+------+  |XX
  |                                                         |XX J2
  |                                                         |XX
  |                                                         |
  |                                               +------+  |XX
  |                                               | S1   |  |XX
  |                                               +------+  |XX
  |                                                         |XX J1
  |   +---J12                                               |XX
  |   +---+                                                 |XX
  |   Front Panel                                           |XX
  |   Connector                                             |XX
  |                                                         |+-+
  |                                                         || |J11
  |                   +------------+                        || |TERM
  +-------------------+     J5     +------------------------++-+
                      +------------+



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PRIAM    514/519  OEM MANUAL P/N 308086 REV. A EC 10921

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

 Switch Selectable Options
 -------------------------
 Two optional features implemented via the drive select/option select
 dipswitch S1 are available for customer reconfiguration of drive
 functions. They are the Radial/Daisy Chain option and the PRIAM
 Unique Mode.


 Radial/Daisy Chain Option
 -------------------------
 Switch S1-5 changes the drive select protocol. When S1-5 is OFF the
 drive interface is set for normal daisy chain operation. Switching
 S1-5 ON facilitates radial operation by forcing permanent drive
 selection regardless of the address chosen by drive select switches
 S1-1 through S1-4.


 PRIAM Unique Mode
 -----------------
 Switch S1-6 selects recovery options from WRITE FAULT, and SERVO
 FAULT (loss of READY) conditions. The following protocol is
 established when PRIAM Unique is selected (closing S1-6):

  - When dc power is applied to the drive, sequencing up is no longer
    automatic. The drive will remain stopped with SEEK COMPLETE true
    and READY false.

  - Any motion command will cause the drive to sequence up.

  - SERVO FAULT and WRITE FAULT will both be reset when any motion
    command is received. Removal of dc power is not required to reset
    SERVO FAULT (loss of READY). Simple de-selection of the drive will
    clear WRITE FAULT but not SERVO FAULT.

  - The drive will not conceal seek faults by attempting three auto-
    matic retries. It will instead immediately post SEEK COMPLETE or
    NOT READY status.

  - When a forward illegal cylinder address greater than maximum is
    received, a sequence down will be executed.

  - As in the normal ST412 mode of operation, when a reverse illegal
    cylinder address less than zero is received, a fast restore to
    Cylinder 0 will be performed.


 Sequence Up/Down
 ----------------
 In the normal ST412 mode of operation the drive will sequence up as
 soon as power is applied. However, the user may connect J13-12 with a
 jumper to an unused lin eof the J2 connector (such as J2-3) to
 provide a sequence up/down capability. The drive will spin down when
 the line is low, and it will spin up when the line is high. This line
 can be used to spin down the drive even in the PRIAM Unique Mode.


 J13-8/9  Write Protect
 ----------------------
 Grounding J13-9 with a jumper to J13-8 will inhibit writing and
 protect all previously written data by causing WRITE FAULT if WRITE
 GATE is activated. J13 has sockets flush with the PCB on 0.1 in.
 centers and 0.3 in. spacing to accept low profile (<.20 in. high) DIP
 jumpers or wire jumpers.

 Connector/Pin                      Signal
                      +----+
              +--- 1  |o  o| 16     -FAULT RESET
 J2/5  >------+--- 2  |o  o| 15     -SERVO CLOCK
 J2/3  >------+--- 3  |o  o| 14     +SERVO CLOCK
 J2/7  >---o--+--- 4  |o  o| 13     +AUTO FAULT CLEAR
 J2/9  >---+--+--- 5  |o  o| 12     +SPIN UP
 J2/10 >---+--+--- 6  |o  o| 11     -RADIAL INDEX
 J2/16 >---+  o--- 7  |o  o| 10     -RADIAL SERVO CLK
              o--- 8  |o  o|  9     -WRITE PROTECT
              |       +----+
           Ground


 Interface Options
 -----------------
 With the addition of jumpers to the appropriate locations of J13, any
 of the following non-multiplexed signals may be sent to the
 controller on any of the reserved lines of the J2 connector.

     +5V (as a reference only)
     GROUND
     INDEX
     SEEK COMPLETE
     10 MHz SERVO CLOCK


 Front Panel Indicator
 ---------------------
 The front panel indicator is a green LED that illuminates when the
 drive is selected. It is connected via internal cable to front panel
 connector J12.

        +----+
        |1  2|
     ---+----+----PCB Component Side


 Auto Write Fault Clear
 ----------------------
 The automatic clear, WRITE FAULT, in the normal ST412 mode of
 operation can be inhibited by grounding J13-13 with a jumper. If this
 done, WRITE FAULT can be cleared by de-selecting the drive, or by a
 momentary TTL low on the fault reset line J13-16, or by powering down
 the drive.
  +-------------------------------------+
  |S1  Switch Settings                  |
  +-----------+---------------------+---+
  |Position 1 |Drive Select 1       |ON |
  +-----------+---------------------+---+
  |Position 2 |Drive Select 2       |ON |
  +-----------+---------------------+---+
  |Position 3 |Drive Select 3       |ON |
  +-----------+---------------------+---+
  |Position 4 |Drive Select 4       |ON |
  +-----------+---------------------+---+
  |Position 5 |Radial Configuration |ON |
  +-----------+---------------------+---+
  |Position 6 |PRIAM Unique         |ON |
  +-----------+---------------------+---+
  |Position 7 |UNUSED               |-- |
  +-----------+---------------------+---+
  |Position 8 |UNUSED               |-- |
  +-----------+---------------------+---+

 Drive Select Lines 1-4
 ----------------------
 When true, these lines enable their respective disk drive interfaces
 (maximum of 4). The Drive Select/Option Select dip switch has four
 switches that determine which select line will activate the interface
 of a particular drive. (When selected, drive front panel light
 comes on.) These lines are not binary coded, and no two drives in a
 chain may have the same drive select switch on.



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PRIAM    514/519  OEM MANUAL P/N 308086 REV. A EC 10921, 12/86

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

 Required Mounting Orientation
 -----------------------------
 Horizontal  Spindle Impeller Down

 Vertical    Power Connector J3 Up with Matrix PCBA Down (preferred,
             but either vertical orientation is acceptable) and
             Positioner Motion Horizontal within 5 degrees.


 Shipping Damage Inspection
 --------------------------
 Priam disk drives are packaged to withstand normal handling in
 reusable shipping containers. It is the customer's responsibility to
 notify the carrier if shipping damage should occur to a drive.

 Note: When handling the drive while still in the shipping container,
 ensure that the container remains in the upright position indicated
 by the attached labels.


 Shock and Vibration Precautions
 -------------------------------
 The drives must be handled in such a manner as not to exceed the Non-
 Operational Shock and Vibration limits.


 Introduction
 ------------
 There are two flat ribbon cables used with the ST412 Interface. The
 larger one is a 34-pin edge connector, used to transfer all commands
 and most of the status information. It can be connected in either
 radial or daisy chain fashion. The second is a 20-pin edge connector,
 containing all the read/write data lines and one status line and must
 be connected in the radial configuration. Maximum 4 drives.


 Termination
 -----------
 Every drive is shipped from PRIAM with a terminator installed to
 minimize reflections and ensure maximum data integrity. One
 terminator is required on each drive in a radial configuration. In a
 daisy chain configuration only the final drive needs one. (If the
 final drive in a daisy chain loses power or becomes inoperative, a
 terminator must be installed in the next to last drive.)


 J1/P1 Connector - Control Signals
 ---------------------------------
 Connection of J1 is through a 34-pin edge connector. The pins are
 numbered 1 through 34 with the even pins located on the component
 side of the PCB. Pin 2 is labeled. The recommended mating connector
 for P1 is AMP ribbon connector P/N 88373-3 or Molex 15-35-1341. All
 odd pins are ground. A key slot is placed between pins 4 and 6.


 J2/P2 Connector - Data Signals
 ------------------------------
 Connection to J2 is through a 20-pin edge connector. The pins are
 numbered 1 through 20 with the even pins located on the component
 side of the PCB. The recommended mating connector for P2 is AMP
 ribbon connector P/N 88373-6, or Molex P/N 15-35-1201. A key slot is
 placed between pins 4 and 6.


 J3/P3 Connector - Power
 -----------------------
 DC power connector (J3) is a 4-pin AMP Mate-N-Lok connector P/N
 350211-1 mounted on the component side of the Servo PCBA. The
 recommended mating connector is AMP P/N 1-480424-0 utilizing AMP
 pins P/N 61314-4 (Strip) or P/N 60617-4 (Loose piece).

   pin 1  +12 VDC                            |
   pin 2  +12 V RETURN                       |
   pin 3  + 5 V RETURN       ----+ +-------+ |
   pin 4  + 5 VDC                | |1 2 3 4| |
                                 | \-------/ |
                                 +-----------+


 J14/P14  Frame Ground Connector
 -------------------------------
 Faston AMP P/N 61761-2
 Recommended mating connector AMP 62187-1
 If used, the hole in J14 will accomodate a wire of size 18AWG max.


 Data Transfer Lines
 -------------------
 All lines associated with the transfer of data between the drive and
 the host system are differential in nature and may not be multi-
 plexed. These lines are provided at the J2/P2 connectors on all
 drives.

 Two pairs of balanced signals are used for the transfer of data:
 WRITE DATA and READ DATA.

 Flat ribbon or twisted pair
 Maximum 20 feet
 Note: Any EIA RS 422 Driver/Receiver pair will interface.



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PRIAM    514/519  OEM MANUAL P/N 308086 REV. A EC 10921, 12/86


 General Information
 -------------------
 PRIAM 5.25-inch disk drives use advanced Winchester and micro-
 processor technologies to provide users with low-cost disk drives
 having high capacity, fast access, and long-term reliability. A
 linear voice coil positioner with track following servo enables the
 PRIAM 5.25-inch drives to position mini-Winchester type heads quickly
 and precisely. These low-force heads promote high data reliability.

 Advanced 5.25-inch, carbon overcoated, thin film, Winchester
 technology disks are driven by a brushless dc motor. The heads,
 disks, and head positioner coil and carriage are enclosed in a
 sealed, contamination-resistant chamber to ensure high data
 reliability.


 Media Defects
 -------------
 A media defect is some physical characteristic of the media which
 results in a repetitive read error when the drive is operating within
 specified operating conditions. Valid data must not be written over
 known media defects.

 All drives are chipped with a defect map, listing the following
 information:

 - Cylinder
 - Head
 - Defect Location
 - Defect Length (in bits)

 The defect location is specified in bytes ( 10 bytes) from the
 leading edge of index.

 The maximum number of defects allowed at the time of initial shipment
 is as follows:
                                       514   519
   - Defects per Drive (max allowed)   140   191
   - Defects per Surface (max allowed)  25    25

 There will be zero defects on track zero, heads 0-7 inclusive, at the
 time of initial shipment.


 Air Filtration Components
 -------------------------
 A self-contained recirculating filter supplies clean air through a
 0.3 micron filter to the sealed HDA. A separate filter allows for
 ambient atmospheric pressure equalization within the assembly without
 the induction of contaminants.


