
N D R - 3 4 0    NEWBURY DATA
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders     615|     |     |
Capacity form/unform    10/   51 MB        Heads           8|     |     |
Seek time   / track  40.0/ 8.0 ms          Sector/track   17|     |     |
Controller           MFM / ST506           Precompensation 65535
Cache/Buffer               KB              Landing Zone      614
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 70
Power: sleep              W     Humidity     %         8 80    |      8 95
       standby       15.0 W     Altitude    km    -0.300  3.000| -0.300  5.000
       idle               W     Shock        g         3       |     30
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA        50
       spin-up            W     ECC        Bit   32
                                MTBF         h      15000
                                Warranty Month
Lift/Lock/Park     NO           Certificates     CSA,IEC380,UL478,VDE         

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                        L   A   Y   O   U   T
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NEWBURY  NDR-320/NDR-340  USER MANUAL 7020020352-A

  +---------------------------------------------------------+
  |                                                         |X1 J1
  |                                                         |XX 34 Way
  |                                                         |XX Daisy-
  |                                                         |XX Chain
  |                                                         |XX
  |                                              Terminator |XX
  |                                              Resistor   |XX
  |                                              Pack --+   |XX
  |                                                     |   |
  |                                                     ++  |X1
  |                                                 +-+ ||  |XX J2
  |                                     Unit Number | | ||  |XX 20 Way
  |                                     Select Link +-+ ++  |XX Radial
  |                                                         |XX
  |                                                         |
  |                                                         |XX Power
  |                                                         |XX J3
  +---------------------------------------------------------+\ J4



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                      J   U   M   P   E   R   S
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NEWBURY  NDR-320/NDR-340  USER MANUAL 7020020352-A

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

 x = Jumper are set at factory


 Drive Unit Number Selection
 ---------------------------
 The drive unit number can be set by a jumper link on the underside
 of the drive.

            1 C 2                       1 C 3
  Drive 1  +-----+            Drive 2  +-----+
           |xxx o|                     |o xxx|
           |o o o|                     |o o o|
           +-----+                     +-----+
            3 C 4                       3 C 4



            1 C 2                       1 C 3
  Drive 3  +-----+            Drive 4  +-----+
           |o o o|                     |o o o|
           |xxx o|                     |o xxx|
           +-----+                     +-----+
            3 C 4                       3 C 4

 The jumper link may be moved from position to position using a pair
 of thin nosed pliers.
 NB: The entrances to individual sockets on the PCB may appear to be
 sealed. The application of gentle pressure will break this seal.



 J1   34 Way Daisy Chain Connections
 -----------------------------------
                                      Ground
                     Signal           Return    Signal
                                      Pin       Pin
    CONTROLLER                                              DRIVE
   +-----------+  Not Used             1         2       +----------+
   |           +-----------------------------------------+  J1      |
   |           |  -Head Select 2       3         4       |          |
   |           +---------------------------------------->|          |
   |           |  -Write Gate          5         6       |          |
   |           +---------------------------------------->|          |
   |           |  -Seek Complete       7         8       |          |
   |           |<----------------------------------------+          |
   |           |  -Track Zero          9        10       |          |
   |           |<----------------------------------------+          |
   |           |  -Fault              11        12       |          |
   |           |<----------------------------------------+          |
   |           |  -Head Select 2*     13        14       |          |
   |           +---------------------------------------->|          |
   |           |  -Linked to J2 pin7  15        16       |          |
   |           +-----------------------------------------+          |
   |           |  -Head Select 2      17        18       |          |
   |           +---------------------------------------->|          |
   |           |  -Index              19        20       |          |
   |           |<----------------------------------------+          |
   |           |  -Ready              21        22       |          |
   |           |<----------------------------------------+          |
   |           |  -Step               23        24       |          |
   |           +---------------------------------------->|          |
   |           |  -Drive Select 1     25        26       |          |
   |           +---------------------------------------->|          |
   |           |  -Drive Select 2     27        28       |          |
   |           +---------------------------------------->|          |
   |           |  -Drive Select 3     29        30       |          |
   |           +---------------------------------------->|          |
   |           |  -Drive Select 4     31        32       |          |
   |           +---------------------------------------->|          |
   |           |  -Direction In       33        34       |          |
   |           +---------------------------------------->|          |
   +-----------+                                         +----------+


 J2  20 Way Radial Connections
 -----------------------------

                                      Ground
                     Signal           Return    Signal
                                      Pin       Pin
    CONTROLLER                                              DRIVE
   +-----------+   -Drive Selected     1         2       +----------+
   |           |<----------------------------------------+          |
   |           |   Not used (OPEN)     3         4       |          |
   |           +-----------------------------------------+          |
   |           |   Spare               5         6       |          |
   |           +-----------------------------------------+          |
   |           |   Linked to J1 Pin16  7         8       |          |
   |           +-----------------------------------------+          |
   |           |   Not used            9        10       |          |
   |           +-----------------------------------------+          |
   |           |   Ground             11        12       |          |
   |           +-----------------------------------------+          |
   |           |   +MFM Write Data    13                 |          |
   |           +---------------------------------------->|          |
   |           |   -MFM Write Data    14                 |          |
   |           +---------------------------------------->|          |
   |           |   Ground             15        16       |          |
   |           +-----------------------------------------+          |
   |           |   +MFM Read Data     17                 |          |
   |           |<----------------------------------------+          |
   |           |   -MFM Read Data     18                 |          |
   |           |<----------------------------------------+          |
   |           |   Ground             19        20       |          |
   |           +-----------------------------------------+          |
   +-----------+                                         +----------+


 J3  DC Power Connector
 ----------------------
            +---------+
            | 4 3 2 1 |                             CURRENT
            +-+-+-+-+-+                             TYP    MAX
              | | | +--------  + 12 Volts   5% *    1.1A   2.5A**
              | | +----------  + 12 Volts Return     -      -
              | +------------  +  5 Volts Return     -      -
              +--------------  +  5 Volts   5%      0.3A   0.5A

 *      5% for Reading or Writing
       10% at Power On or Seeking

 **  Only during Power Up.



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                      I   N   S   T   A   L   L
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NEWBURY  NDR-320/NDR-340  USER MANUAL 7020020352-A

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

 Drive Mounting
 --------------

     horizontally             vertically
   +-----------------+   x--+             +-x+ +------------------+
   |                 |   |  +-----+ +-----+  | |                  | x
   |                 |   |  |x    | |   x |  | x+----------------+x
 +-+-----------------+-+ |  |   x | |x    |  | ||x              x||
 +---------------------+ |  |     |x|     |  | ||  x          x  ||
                         |  |   x | | x   |  | ||    x      x    ||
                         |  |     | |   x |  | ||      x  x      ||
 +---------------------+ |  +x----+ +-----x  | ||       xx       ||
 +-+-----------------+-+ x--+             +--x ||     x    x     ||
   |                 |      UNACCEPTABLE!      ||   x        x   ||
   |                 |                         || x            x ||
   +-----------------+                         |x                x|
                                              x++----------------++x
                                                   UNACCEPTABLE!

 A drive may be mounted in any horizontal orientation (it must not be
 mounted on i.e. front panel upwards or downwards).

 Eigth mounting holes, four on the bottom and two on each side are
 provided for mounting the drive in an enclosure. The size and
 location of these holes are identical to those used on industry
 standard microfloppy drives.

 Caution
 Do not use screws that project more than 3mm (1/8 inch) into the
 drive.

 Take care that no cables or other obstructions touch the drive when
 it is running.


 Operating Environment
 ---------------------
 The drive is designed to operate in a standard office environment.
 High relative humidity conditions should be avoided to prevent the
 possibility of condensation. Also avoid low relative humidity
 conditions to prevent particle accumulation by static attraction. The
 drive is not intended for use in a harsh environment with high dust
 and dirt concentrations.

 To ensure reliable operation, it is recommended that an airflow of
 at least 3 CFM is provided across the disc drive and PCB assembly in
 the final installation configuration.



                  Four Drive Configuration

                    Daisy
   +-------------+  Chain    +------------+      +-----+
   |             +--Cable----XJ1        J3+------+ PSU |
   |             |        +--X            |      +-----+
   |             +-Radial-+--+J2          |
   |             +--------+--+J4          |
   |             |        |  +------------+
   |             |        |  +------------+      +-----+
   |             |        +--XJ1        J3+------+ PSU |
   |             |        +--X            |      +-----+
   |             +--------+--+J2          |
   |             +--------+--+J4          |
   | Controller  |        |  +------------+
   |             |        |  +------------+      +-----+
   |             |        +--XJ1        J3+------+ PSU |
   |             |        +--X            |      +-----+
   |             +--------+--+J2          |
   |             +--------+--+J4          |
   |             |        |  +------------+
   |             |        |  +-+----------+      +------+
   |             |        +--+T|J1      J3+------+ PSU  |
   |             |           +-+          |      +------+
   |             +-----------+J2          |
   |             +-Frame-----+J4          |
   +-------------+ Ground    +------------+

           Terminator fitted to last drive only!


 J1 Connector
 ------------
 This is a 34-pin PCB edge connector for a flat cable carrying the
 daisy-chain signal lines. This cable may be connected directly to the
 controller or connected in a daisy chain configuration with other
 drives. All signals are gated by the DRIVE SELECT signal.


 J2 Connector
 ------------
 This is a 20 pin PCB edge connector for a flat cable carrying the
 radial signal lines. This cable may not be daisy chained; it mus be a
 direct radial connection to the controller.

 NOTE: For J1 and J2 the even numbered pins are located on the
 component side of the PCB. On J1 all the odd numbered pins are
 grounded. The  recommended mating connector for J1 and J2 are shown
 below:
       +---------------------------------------------+
       |CABLE     CONNECTOR PART NO.     KEY PART NO.|
       +---------------------------------------------+
       |J1        Scotchflex             67043-001   |
       |34-way    3463-C01                           |
       |                                             |
       |          or AMP                 88113-1     |
       |          88373-3                            |
       +---------------------------------------------+
       |J2                                           |
       |20-way    Scotchflex             67043-001   |
       |          3461-001                           |
       |                                             |
       |          or AMP                 88113-1     |
       |          88373-6                            |
       +---------------------------------------------+
       The connectors are insulation-displacement types so for the
       daisy chain cable the connector can be fitted at any position
       to suit the user's system layout.

 CAUTION
 Be sure to mount each connector so that pin 1 is crimped on to wire
 1 etc.

 Each connector must have a polarising key inserted between pins 4 and
 6 to prevent incorrect system cabling.

 Keep the total length of the daisy chain cable as short as possible
 to reduce system congestion and R.F. interference. The overall length
 should not exceed 6m (20 feet).

 Keep the radial cable length as short as possible - absolute maximum
 is 6m (20 feet).

 The radial cable cannot be daisy-chained.

 Use any standard 34 way and 20 way flatstrip cable such as Scotchflex
 3302 series (or equivalent) for the daisy chain and radial cables.


 J3 Connector
 ------------
 The DC power connector is a 4 pin AMP Mate-N-Loc connector which is
 connected to the PCB via four short trailing leads. The recommended
 connector for J3 is AMP P/N 1-480424-0 utilising AMP sockets P/N
 350078-4 (strip) or P/N 61173 (loose piece).


 J4 Frame Ground
 ---------------
 A frame ground connection to the drive is provided by an AMP Faston
 connector. The recommended mating connector is AMP 62187-1. Frame
 ground should be connected to the host system ground through a 7 x
 0.32 mm or larger conductor.


 Termination
 -----------
 Termination of the daisy chain signal lines is only required at the
 end of the daisy chain. A 180/470 Ohm resistor pack is used for this
 function. The terminator is accessible on the underside of the drive.

 Note the position of the terminator pin ident notch when fitting a
 terminator pack.

 CAUTION
 Only the last physical drive in a daisy chained system needs
 termination. Any resistor packs fitted to intermediate drives must
 be removed.



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                      F   E   A   T   U   R   E  S
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NEWBURY  NDR-320/NDR-340  USER MANUAL 7020020352-A

 Introduction
 ------------
 The Newbury Data NDR 300 range of disc drives ('PENNY') is a range of
 high performance '3.5 inch' Winchester drives with up to four 95mm
 plated discs providing unformatted storage capacities to 51 Mbytes.
 System integration is simplified through the use of the Industry
 Standard ST506/412 type interface combined with PENNY's inherent low
 power consumption.


 Media Quality
 -------------
 Following factory testing each drive will be supplied with a Defect
 Map, listing the location of all media flaws. The defective area will
 be identified by cylinder number, head number and bytes from Index.
 From this information, it is possible to calculate which sector the
 defect will lie in any given format.

 It is recommended that sectors which contain declared defects should
 not be used to record data, and the user should 'flag'all such
 defects. In the unlikely event that a user's system detects flows at
 differed locations than the factory declared defects then these
 sectors should also be flagged.

 Note: At the time of manufacture the drive is guranteed to be defect
 free on cylinder zero.

 At the time of manufacture the maximum number of defects per surface
 will be 10.


 Spindle Drive Motor
 -------------------
 Rotation of the discs is via a direct drive, 3 phase brushless DC
 motor contained with low heat dissipation. The motor runs the discs
 up to the operating speed and dedicated circuits on the PCB maintain
 precise speed control.


 Data Storage Discs
 ------------------
 These 95mm discs are composed of an aluminium substrate coated with a
 very thin (3-4 microinch) metallic film and then sputtered with a
 carbon overcoat. Such a composition provide excellent magnetic
 properties and good resistance to abrasion during head take-off and
 landing. Data storage is organised as 615 concentric tracks per disc
 surface.


 Heads
 -----
 The read/write heads are used to write data to and read data from the
 disc surfaces. They are small, light, 'Whitney'type heads designed to
 fly at the low flying height (a few microinches) demanded by the high
 data storage capacity.


 Head Positioning Assembly
 -------------------------
 The read/write heads are attached to a linear carriage. Control of
 the movement of this assembly in positioning the heads over the data
 area is through a taut band transmission system driven by a DC torque
 motor. This servo assembly also contains a photo-optical transducer
 which produces track crossing position signals.


 Mechanical Assembly
 -------------------
 The aluminium alloy deck provides a secure stable base to maintain
 the relative dimensions between the disc spindle and head positioning
 mechanism. External contamination is excluded from the head disc
 assembly through the use of a sealed chamber. Within this sealed area
 the rotating discs create self-circulating air movements which flow
 through the recirculating filter, ensuring an ultra clean environ-
 ment. A second filter located in the top cover allows air pressure
 equalisation between the chamber and ambient.

 Mounting of the deck unit to its mounting frame is realised via anti-
 vibration mounts (A/V mounts). The front facia panel of this frame
 features two LED status lights - a green light indicating drive ready
 and a red light indicating drive selected. In addition this Red LED
 is used to flash fault codes from the drives automatic self
 diagnostic facility.


 Printed Circuit Board
 ---------------------
 The majority of the associated electronic circuitry is contained on a
 single printed circuit board (PCB). This has been achieved through
 extensive use of state of the art technology including an advanced
 microprocessor, a custom gate array I.C., a multilayer PCB and sur-
 face mounted components, assembled on both sides of the board. The
 complete PCB assembly is fitted to the mounting frame on the under-
 side of the drive deck.


 Drive Operation
 ---------------
 When the drive is installed in the user's system and all connections
 and link positions confirmed, switch power on and allow the drive to
 run up. When the discs have reached the operating speed the heads
 automatically recalibrate to Track Zero.


 Self Diagnostics
 ----------------
 During operation, the drive continuously performs a series of self
 checking routines. Any out of range conditions are reported by
 flashed codes via the Red LED on the front panel. The codes appear a
 group of flashes at a rate of two per seconds with a one second
 interval between the groups of flashes.

 In the event of such a condition repeatedly arising, i.e. it does not
 clear itself after switching of power to the drive and then reappling
 power to the drive and then reapplying power, firstly check that the
 installation of the unit is correct. If the installation is not
 correct, then make a note of the number of flashes in a group and
 contact your nearest Newbury Data dealer.

 Note: In particular, please note that 4 flashes signifies a D.C.
 power fault - check the +5V and +12V power lines to the drive.


 Seek Times
 ----------
      +----------------------------------+-----+
      |Track-to-Track         msec.      |  8  |
      +----------------------------------+-----+
      |               Average msec. typ. |  40 |
      |               Average msec. max. |  80 |
      +----------------------------------+-----+
      |Latency                msec. avg. | 8.33|
      +----------------------------------+-----+



 Line Drivers and Receivers
 --------------------------
 Two transmission systems are used for ST506 interfacing, one for the
 read and write data lines and the other for control and status lines.

   * The MFM Data signals are 5MHz pulse trains which are transmitted
     over differential pair line using the RS422 system. The signal
     lines are straddled by ground lines in the interface cables.

   * The 100 Ohm terminating resistor is in the drive on the write
     lines and in the controller on the read lines.

 The Control and Status signals use LS TTl drivers and receivers.

 The 180/470 Ohm terminator netwotks are required only at the receiv-
 ing end of the line. That is in the controller for status lines and
 in the drive (or last drive in a daisy chained system) for control
 lines.


 Reliability
 -----------
 MTBF                      15,000 Power on hours (typical usage)
 Preventive Maintenance    None
 MTTR                      30 Minutes
 Component Design Life     5 Years


 EMI
 ---
 The drive is not a stand alone device and therefore is not governed
 by international standards for electromagnetic interference. An OEM
 user of disc drives should ensure that an overall system installation
 (including the NDR drive) complies with appropriate EMI standards.


 Standards
 ---------
 The drive will satisfy the following safety standards and
 regulations:

 Underwriters Laboratories  -  UL Standard 478

 Canadian Standards Associations  -  CSA Standard C22.2, No. 154-M
                                     1983

 Verband Deutscher Electrotechniker  -  VDE Standard 0806/8.81

 International Electrotechnical Commision  -  DIN IEC Standard 380


