
K L - 3 3 0    KALOK
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders     615|     |     |
Capacity form/unform    33/   38 MB        Heads           4|     |     |
Seek time   / track  48.0/15.0 ms          Sector/track   26|     |     |
Controller           RLL / ST412           Precompensation 65535
Cache/Buffer               KB              Landing Zone      615
Data transfer rate    0.938 MB/S int       Bytes/Sector      512
                      0.938 MB/S ext
Recording method     RLL                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         4 55    |    -40 60
Power: sleep              W     Humidity     %         8 80    |      5 90
       standby       11.0 W     Altitude    km    -0.305  3.048| -0.305  9.144
       idle               W     Shock        g        10       |     40
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA        40
       spin-up            W     ECC        Bit
                                MTBF         h      44000
                                Warranty Month
Lift/Lock/Park     NO           Certificates                                  

**********************************************************************
                        L   A   Y   O   U   T
**********************************************************************
KALOK    OCTAGON KL 320/330  OEM MANUAL P/N 86001-001 REV. B

  +---------------------------------------------------------+
  |                                                         |XX
  |                                          ++             |XX
  |                                          ||RP1          |XX P2
  | +--+                                     ||             |XX (J2)
  | |P4|                                     ||             |XX 20-pin
  | |  |                                     ++             |XX
  | +--+                                     +-+            |
  |       +-HJ+                              | |Selectable  |XX
  |       +---+                              | |Jumper      |XX
  |                                          | |            |XX P1
  |              +-----+                     +-+FR          |XX (J1)
  |              | P6  |                                    |XX 34-pin
  |              +-----+                                    |XX
  |                +--+                                     |XX
  |                |P5|                                +----+
  |                |  |                                +----+
  |                +--+                                XXXXX|Power
  +---------------------------------------------------------+ P3  (J3)
                                                             (opposite
                                                              Side)



**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
KALOK    OCTAGON KL 320/330  OEM MANUAL P/N 86001-001 REV. B

 Jumper setting
 --------------

 x = Jumpers set at factory

 The P1, P2, and P3 mate with the edge connectors J1 and J2, and
 power supply connector J3, respectively.

 Data Interface
 --------------
 Connectors J1 and J2 are assigned to the data interface. J1 has 34
 pins and J2 has 20 pins. The even-numbered pins are shown on the
 component side of the PCB. The odd-numbered pins are printed on the
 solder side of the PCB. Both these connectors have their slots be-
 tween pins 4 and 6.


 Connector J1 - Control I/F Pin Assignments
 ------------------------------------------
    +--------------------------------------------------------+
    |Ground Return   Signal       Signal Name                |
    |Pin Number      Pin Number                              |
    +--------------------------------------------------------+
    |    1              2           Reserved                 |
    +--------------------------------------------------------+
    |    3              4           Reserved                 |
    +--------------------------------------------------------+
    |    5              6           -Write Gate              |
    +--------------------------------------------------------+
    |    7              8           -Seek Complete           |
    +--------------------------------------------------------+
    |    9             10           -Track 000               |
    +--------------------------------------------------------+
    |   11             12           -Write Fault             |
    +--------------------------------------------------------+
    |   13             14           -Head Select 20          |
    +--------------------------------------------------------+
    |   15             16           Reserved (for J2 pin 7)  |
    +--------------------------------------------------------+
    |   17             18           -Head Select 21          |
    +--------------------------------------------------------+
    |   19             20           -Index                   |
    +--------------------------------------------------------+
    |   21             22           -Ready                   |
    +--------------------------------------------------------+
    |   23             24           -Step                    |
    +--------------------------------------------------------+
    |   25             26           -Drive Select 0          |
    +--------------------------------------------------------+
    |   27             28           -Drive Select 1          |
    +--------------------------------------------------------+
    |   29             30           -Drive Select 2          |
    +--------------------------------------------------------+
    |   31             32           -Drive Select 3          |
    +--------------------------------------------------------+
    |   33             34           -Direction In            |
    +--------------------------------------------------------+


 Connector J2 - Data I/F Pin Assignments
 ---------------------------------------

    +--------------------------------------------------------+
    |Ground Return   Signal       Signal                     |
    |Pin Number      Pin Number                              |
    +--------------------------------------------------------+
    |    2              1         Drive Selected             |
    +--------------------------------------------------------+
    |    4              3         Reserved                   |
    +--------------------------------------------------------+
    |    6              5         Reserved                   |
    +--------------------------------------------------------+
    |    8              7         Reserved (to J1 pin 16)    |
    +--------------------------------------------------------+
    |   10              9         Reserved                   |
    +--------------------------------------------------------+
    |   12             11         Ground                     |
    +--------------------------------------------------------+
    |   15             13         +MFM Write Data            |
    +--------------------------------------------------------+
    |   16             14         -MFM Write Data            |
    +--------------------------------------------------------+
    |   19             17         +MFM Read Data             |
    +--------------------------------------------------------+
    |   20             18         -MFM Read Data             |
    +--------------------------------------------------------+


 Jumper and Test Point Functions
 -------------------------------
 All jumpers and test points are located on the printed circuit board
 assembly. The selectable option jumpers are activated by the in-
 stallation of a jumper block. (Du Pont Japan Ltd., Part Number 68905-
 101).


 Selectable Jumper Options
 -------------------------
   +---+---+---+---+---+---+---+
   |ST |DS4|DS3|DS2|DS1|RO |FR |
   +---+---+---+---+---+---+---+

    Set at factory
   +------------+-------------------+--------------+
   |Designations| Function          | Configuration|
   +------------+-------------------+--------------+
   |FR          | Reset Write Fault | Not Installed|
   +------------+-------------------+--------------+
   |RO          | Radial Option     | Not Installed|
   +------------+-------------------+--------------+
   |DS1         | Drive Select 0    | Installed    |
   +------------+-------------------+--------------+
   |DS2         | Drive Select 1    | Not Installed|
   +------------+-------------------+--------------+
   |DS3         | Drive Select 2    | Not Installed|
   +------------+-------------------+--------------+
   |DS4         | Drive Select 3    | Not Installed|
   +------------+-------------------+--------------+
   |ST          | Self Test         | Not Installed|
   +------------+-------------------+--------------+

  FR - Write Fault Reset Option
  -----------------------------
  The Write Fault signal is internally latched. A selectable option is
  provided to clear this latch. When the drive is in normal condition
  (no jumper is installed), this option resets the Write Fault latch
  when the Write gate is removed. It is reasserted after the Write
  Fault is cleared.

  The selected option (with jumper is installed) resets the Write
  Fault latch when the drive is not selected. It is reasserted after
  the Write Fault is cleared.

  RO  - Radial Option
  -------------------
  This option is used for multiple drives when cabled in a radial
  mode.

  DS1 - DS4
  ---------
  Drive Select 1 - 4.

  ST - Self Test
  --------------
  This option is used during the manufacturing of the drive. Self-test
  is not recommended for field use. This option causes the stepper
  motor to actuate the heads in a butterfly seek mode and it disallows
  control sent via the interface.


 HJ  Analog Test (for factory use only)
 --------------------------------------
     HJ  Installed       enable the drive to perform analog test
 x       Not Installed   disable the drive to perform analog test



 Connector J3 - Power Supply
 ---------------------------

     +---------+
     | 4 3 2 1 |
     +-+-+-+-+-+
       | | | +------  +12 V DC
       | | +--------   12 V DC Return
       | +----------    5 V DC Return
       +------------  + 5 V DC



**********************************************************************
                      I   N   S   T   A   L   L
**********************************************************************
KALOK    OCTAGON KL320/330 OEM MANUAL P/N 86001-001 REV. B

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

 Installation direction
 ----------------------

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

 Installation direction
 ----------------------
 The drive may be mounted in any attitude!


 The OCTAGON KL320/330 may be mounted in any position. Twelve mount-
 ing holes are provided in the drive chassis for installation. Eight
 of these holes accept M4 metric screws; the remaining four holes
 accept #6-32 machine screws. Up to four drives may be mounted in a
 standard 3.25" x 5.75" x 8.0" space in a host system.

 Power dissipation for the KL320/330 drives is 11.0 watts (typical).
 Cooling, whether by air or fan, must be sufficient to keep both the
 drive and the host system within the required temperature range. In
 addition, 0.04-inch clearance must be provided for cooling, shock &
 vibration, and easy installation and removal.

 The KL 320/330 can be installed into any computer system that has a
 disk controller which supports the ST412/ST412-R (KL 330) interface.
 These products are ideal for ruggedized applications and specially
 suited where compact size, lightweight, high storage capacity, and
 reliability is required.


 Electrical Interface Requirements
 ---------------------------------
 Three types of connectors are required for the KL 320/330 electrical
 interface. Kalok recommends the following types or their equivalents:

           Name                        Part Number
           ---------------------------------------------------
           P1 (J1): Control Interface   AMP 88373-3
           P2 (J2): Data Interface      AMP 88373-6
           P3 (J3): Power Supply        AMP 1-480424-0 (Housing)
                                        AMP 350078-4 (Pins)


 Cable Connections
 -----------------
 For control and data interface, Kalok recommends twisted pair or flat
 ribbon cables. These cables should not be longer than 20 feet. In
 addition, the power cable should have twisted pair for each line
 voltage and return.


 MFM Write Data
 -------------
 (J2 Pins 13 and 14)

 The MFM Write Data lines are input lines terminated by an RS-422
 differential line receiver with 100 ohms input impedance. These lines
 should be driven by a standard RS-422 line driver.


 MFM Read Data
 -------------
 (J2 Pins 17 and 18)

 The MFM Read Data lines are output lines driven by an RS-422
 differential line driver. It is designed to drive a 105-ohm twisted
 pair or flat ribbon cable up to 20 feet long. These lines should be
 terminated by the host side of the standard RS-422 line receiver with
 100-ohm input impedance.


 Multiple Drive Interconnect
 ---------------------------
 When more than one drive is installed into a host system, the cabling
 between the controller/data separator of the host system and the
 drive should be arranged.

       HOST
   +-----------+                                +-----------------+
   |           +---o----------------------------+J1               |
   |           |   |    +-----------------------+J2               |
   |           |   |    |             +---------+J3               |
   |           |   |    |             |         +-----------------+
   |           |   |    |             |         +-----------------+
   |Controller |   o------------------|---------+J1               |
   |           |   |    | +-----------|---------+J2               |
   |           |   |    | |           o---------+J3               |
   |           |   |    | |           |         +-----------------+
   |           |   |    | |           |         +-----------------+
   +-----------+   o------------------|---------+J1               |
   +-----------+   |    | | +---------|---------+J2               |
   |           +---|----+ | |         o---------+J3               |
   |           +---|------+ |         |         +-----------------+
   |Data       +---|--------+         |         +-----------------+
   |Separator  |   +------------------|---------+J1               |
   |           +----------------------|---------+J2               |
   |           |                      o---------+J3               |
   +-----------+                      |         +-----------------+
                                      |
                                      |
                                DC Voltages

 Terminator
 ----------
 For multiple drives (more than two drives), the terminator is on
 the last drive in a daisy chain. All drive control input signals are
 unbalanced true-when-low signals, and are high impedance state when
 the drive is not selected.


 Drive Selected
 --------------
 The Drive Selected line (on the data interface) is true whenever the
 Drive Selected line (on the control interface), matching the drive
 address, is true.


 Address Assignments
 -------------------
 An individual drive may have an address of 0, 1, 2, or 3. The address
 is determinated by the connections of the drive select jumpers. A
 jumper installed at S1, S2, S3, or S4 will select drive address 0, 1,
 2, or 3, respectively.


 Acoustic Levels
 ---------------
 Overall: 40 dbA

 Note: Measurements are taken in an anechoic chamber with the test
 unit suspended 1.0 meter (36 inches) from the floor (measured to the
 bottom of the drive with PCB facing down). To meet this specifica-
 tion, a one-half inch normal incident microphone should be centrally
 located one meter above the top surface of the drive and positioned
 perpendicular to the surface (diaphragm of the microphone to be
 parallel). Instrumentation should be capable of octave band overall
 "A" weighted readings within   0.5 db and dbA.



**********************************************************************
                      F   E   A   T   U   R   E  S
**********************************************************************
KALOK    OCTAGON KL320/330  OEM MANUAL 86001-001 REV.B

 General Description
 -------------------
 The KL320/330 use a rotary band positioner driven by a bipolar
 stepper motor. This operates under the control of a microprocessor to
 position the read/write heads. The head positioning mechanism is
 designed in such a way that both thermal loops of the positioning
 system oppose each other. This results in an extremely accurate head
 positioning over the entire operating range.

 A ferrofludic seal is installed to eliminate contamination from the
 motor bearings. The recirculation filter at the periphery of the
 disks efficiently cleans the HDA air by trapping entrained particles.

 The electronics of the KL320/330 are mounted on a single circuit
 board beneath the HDA. On-board diagnostics monitor the power supply,
 host controller, and drive functions. Up to four OCTAGON KL 320/330
 drives can be linked to a single controller on a common power and
 control bus.


 Access Time
 -----------

       +----------------------------------+------+
       |Track-to-Track         msec.      |  15  |
       +----------------------------------+------+
       |               Average msec. typ. |  48  |
       |               Average msec. max. |  90  |
       +----------------------------------+------+
       |Latency                msec. avg. | 8.33 |
       +----------------------------------+------+
       Buffered mode, including head settling time.
       Timing indicates average bidirectional seeks
       taken after last step pulse issued by the
       controller. All timing parameters are in
       buffered step mode.


 Precompensation
 ---------------
 For the KL320, precompensation is required on every track from
 cylinder 300 to 615. The optimum amount of precompensation is 12
 nonoseconds for both early and late bits.


 Mapped Defects
 --------------
 Each drive shipped from the factory will have a list of defects
 attached to the HDA cover. The list will indicate the number and
 location of hard errors. The defects must be execluded from any data
 or format usage in order to meet specified error rates.

 The maximum allowable defects are:

    a. 16 per drive
    b. 10 per disk surface

 All tracks on cylinder 0 will be error free.

 Note: Precompensation of write data must be used to meet the
 specified error rates and cylinder 0 must be defect free. Hard errors
 are defined as not recoverable within 16 retries. Soft errors are as
 recoverable at least once within 16 retries. Error rates specified
 are met in an unmarginalized state (open window - no strobe) and do
 not include the benefits of any error correction techniques which may
 be employed.


 Park Zone
 ---------
 For shipping and handling, seek to track 615. This will park the
 heads in a dedicated area away from data tracks. Otherwise, loss of
 data may occur.


 Reliability Specifications
 --------------------------
 Mean time between failures (MTBF)     43,500 hours
 Mean time to repair                   5 minutes
 Preventive maintenance required       None
 Service life                          6 years


 Drive Control and Power Interface
 ---------------------------------
 All drive outputs are driven by the tri-state drivers. All drive
 control output signals are unbalanced true when low, and are in the
 high-impedance state when the drive is not selected.

 Observe the following restrictions when applying power to the
 OCTAGON KL 320/330:

   a. If the 5-volt power is applied first, the 12-volt power must
      follow within 100 msec. Both the 5-volt and 12-volt power
      supplies must be able to maintain the necessary voltage and
      ripple specifications with 12-ohm resistive loads.

   b. During the first four sconds, the 12-volt supply must maintain
      these specifications with a 4.8-ohm resistive load.

   c. During operation, the voltage supplied to the drive must not
      exceed the specified tolerance   5%.


 Interface Signal Line Definition
 --------------------------------
 The KL 320/330 interface contains two types of signals:
 unbalanced and differential.

 All unbalanced lines are true when low. For unbalanced inputs, the
 low level is 0 to 0.8 volts dc and the high level is 3.5 to 5.25
 volts dc. For unbalanced output, the low level is 0.5 volts (max.)
 at +32mA, and the high level is 2.4 volts (min.) at -3 mA.

 The differential signals are standard EIA RS-422 signals. Termination
 is accomplished via a cut away 220/330 ohm resistor pack in SIP
 configuration (RN1)

 Power Up Sequence
 -----------------
 When dc power is applied to the drive, it takes about five seconds
 for the drive to come to speed. READY, SEEK COMPLETE and SELECTED
 signals are typically displayed 12 seconds after power up.


