
R O 5 0 9 0    RODIME
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/HH              Cylinders    1224|     |     |
Capacity form/unform    75/   89 MB        Heads           7|     |     |
Seek time   / track  28.0/ 5.0 ms          Sector/track   17|     |     |
Controller           MFM / ST506           Precompensation 65535
Cache/Buffer               KB              Landing Zone     1223
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    |
Power: sleep              W     Humidity     %        10 85    |
       standby            W     Altitude    km                 |
       idle               W     Shock        g         2       |     30
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit   24
                                MTBF         h      30000
                                Warranty Month
Lift/Lock/Park     NO           Certificates                                  

**********************************************************************
                        L   A   Y   O   U   T
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RODIME   RO 5065/5090 RIGID DISK DRIVE  USER MANUAL PN USM-21550

  +---------------------------------------------------------+  1
  |                                              (under PCB)|XX P3
  |                                                         |XX
  |++LED                                                    |
  |++                                              +---+    |XX
  |                                            EPROM   |    |XX P2
  |                                                |   |    |XX
  |                                                +---+    |X1
  |                                                         |
  |                                                * *4     |XX
  |                                         Drive  * *3     |XX
  |                                         Select * *2     |XX
  |                                                * *1 ++  |XX
  |                                          Terminator ||  |XX
  |                                          Resistor   ||  |XX P1
  |                                                     ||  |XX
  |                                                     ++  |X1
  +---------------------------------------------------------+







      2    P1       34  2    P2    20
     +XXXXXXXXXXXXXXXX--XXXXXXXXXXXX--------+
     |1             33  1          19XXXXXXX|
     |                                  P3 1|
     |                                      |
     +--------------------------------------+
                                     Power



**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
RODIME   RO 5065/5090 RIGID DISK DRIVE  USER MANUAL PN USM-21550

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

 x = Jumpers set at factory


 Up to four drives may be connected to any host in a daisy-chain
 fashion. Drive numbering is effected by drive selector pins which are
 connected by means of a jumper provided. To identify a drive as
 number 1, short the pins furthest from the EPROM. All daisy-chained
 drives should have the line terminator pack removed except for the
 last drive in the chain.

 All drives are shipped for single usuage; drive 1 selected and the
 terminator pack present.

 Note that in the multiple drive configuration, all the DATA interface
 lines are radially connected to the host.



    STANDARD SYSTEN WITH FOUR DRIVES
   +-----------+---------+---------+---------+---------+
   | Drive     |         |         |         |         |
   | Select    |Pins 1   |Pins 2   |Pins 3   |Pins 4   |
   +-----------+---------+---------+---------+---------+
 x | Drive 1   |CLOSED   |OPEN     |OPEN     |OPEN     |
   +-----------+---------+---------+---------+---------+
   | Drive 2   |OPEN     |CLOSED   |OPEN     |OPEN     |
   +-----------+---------+---------+---------+---------+
   | Drive 3   |OPEN     |OPEN     |CLOSED   |OPEN     |
   +-----------+---------+---------+---------+---------+
   | Drive 4   |OPEN     |OPEN     |OPEN     |CLOSED   |
   +-----------+---------+---------+---------+---------+


   IBM-STYLE SYSTEM WITH TWO DRIVES
   +-----------+---------+---------+---------+---------+
   | Drive     |         |         |         |         |
   | Select    |Pins 1   |Pins 2   |Pins 3   |Pins 4   |
   +-----------+---------+---------+---------+---------+
   | Drive C:  |OPEN     |CLOSED   |OPEN     |OPEN     |
   +-----------+---------+---------+---------+---------+
   | Drive D:  |OPEN     |CLOSED   |OPEN     |OPEN     |
   +-----------+---------+---------+---------+---------+
 To install any hard disk drive in an IBM AT, drive address must be
 configured as the SECOND drive, regardless of whether it is being
 used as drive C: or D:.


 P3  DC Power and pin connector assignments
 ------------------------------------------
     +--------------+
     |+-----J3-----+|  pin 1    +12 VDC
     || 4  3  2  1 ||  pin 2    +12 Volts Return
     |+------------+|  pin 3    + 5 Volts Return
     +--------------+  pin 4    + 5 VDC



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                      I   N   S   T   A   L   L
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RODIME   RO 5065/5090 RIGID DISK DRIVE  USER MANUAL PN USM-21550


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

 Recommended 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

 A sub-frame with tapped holes is provided with each drive and permits
 base or side mounting. The frame is fixed to the module via shock-
 absorbing mounts. The drive may be oriented in any axis. When
 installing into an enclosure, at least 0.1 inch clearance must be
 maintained around the entire drive to allow vibration isolation and
 to prevent obstruction of the breather filter.
 (4 mounting holes thread 6-32 2A; max. Screw length 0.25.)
 (8 mounting holes thread 6-32 2A; max. Screw length 0.125)



 Cable Interconnection
 ---------------------

                 Standard System with four drives
              --------------------------------------
       HOST                                       RO 5000 units
   +Controller-+                                +-----------------+
   |           +---o---Control------------------+J1     Drive 1   |
   | Drive 1   +---+------------Data------------+J2               |
   | DATA      |   |                  +-Power---+J3        ...    |
   |           |   |                  |         +-----------------+
   |           |   |                  |
   |           |   |                  |         +-----------------+
   |           |   o----Control-------+---------+J1     Drive 2   |
   | Drive 2   +---+------------Data--+---------+J2               |
   | DATA      |   |                  o-Power---+J3        ...    |
   |           |   |                  |         +-----------------+
   |           |   |                  |
   |           |   |                  |         +-----------------+
   |           |   o----Control-------+---------+J1     Drive 3   |
   | Drive 3   +---+------------Data--+---------+J2               |
   | DATA      |   |                  o-Power---+J3        ...    |
   |           |   |                  |         +-----------------+
   |           |   |                  |
   |           |   |                  |         +-----------------+
   |           |   +----Control-------+---------+J1     Drive 4   |
   | Drive 4   +----------------Data--+---------+J2               |
   | DATA      |                      |   +-----+J3        XXX    |
   +-----------+                      |   |     +-----------------+
   +-----------+                      |   |
   |Power      +----------------------o---+
   |Supply     |
   +-----------+

 ... = Terminator Pack removed

 XXX = Terminator Pack installed



                 IBM-STYLE System with two drives
              --------------------------------------
                              CONTROL cable split
       HOST                   and twisted here    RO 5000 units
   +Controller-+                    |           +-----------------+
   |           |                 +-- -----------+J1     Drive 1   |
   |           |                 |              |      ..         |
   | Drive 1   +-----------------+--------------+J2    ** Jumper  |
   | DATA      |                 |              |      ..         |
   |           |        +--------+--------------+J3    ..  XXX    |
   |           |        |        |              +-----------------+
   |           |        |        |
   |           |        |        |
   |           |        |        |
   |           |        |        |              +-----------------+
   |CONTROL    +--------+--------+--------------+J1     Drive 2   |
   |           |        |                       |      ..         |
   | Drive 2   +--------+-----------------------+J2    ** Jumper  |
   | DATA      |        |                       |      ..         |
   |           |        |          +------------+J3    ..  xxx    |
   +-----------+        |          |            +-----------------+
   +-----------+        |          |
   |Power      +--------+----------+
   |Supply     |
   +-----------+

 ... = Terminator Sip removed

 XXX = Terminator Sip in place


 Connectors
 ----------
 The RO 5000 drive interfaces to host system via the ST412/506 inter-
 face which was introduced by Seagate Technology and has become an
 industry standard for 5.25 inch fixed disk drives. There are separate
 connectors for DATA (MFM code), CONTROL/STATUS and dc POWER. The
 convention for CONTROL is that a TTL logical zero is true and a TTL
 logical one is false. Up to four drives may be connected to a host
 system and each drive is provided with a four pole jumper for
 selection. The CONTROL lines may be daisy-chained, but the DATA lines
 must be radially (individually) connected to the host.

 Control signals for the drive are provided via the 34 pin edge
 connector (P1/J1). The pins are numbered 1 through 34 with the even
 pins located on the component side of the board. Pin 2 is located on
 the end of the board connector farthest away from the DC power
 connector. A key slot is provided between pins 4 and 6. The
 recommended mating connector is AMP ribbon connector A/N 88373-3.

 Radial connection of read/write DATA signals is provided by a 20 pin
 edge connector (P2/J2). The pins are numbered 1 through 20 with the
 even pins located on the component side of the board. The recommended
 mating connector is AMP ribbon connector A/N 88373-6.

 Power (dc) is provided by a four pin AMP Mate-N-Lock connector
 P/N 350211-1, mounted on the solder side of the board (P3/J3). The
 recommended mating connector is AMP P/N 1-480424-0 utilizing AMP pins
 P/N 350078-4.


 IBM PC, PC XT and Compatibles
 =============================

 Drive Address Configuration
 ---------------------------
 The drive address must be configured as the first or second drive,
 depending on wether it is being used as drive C: or D:, and what type
 CONTROL cable is being used. An IBM PC XT or AT cable contains a
 twisted section which requires both drive addresses to be set as
 drive 2. Most other cables are "straight thru", so drive 1 becomes C:
 and drive 2 becomes D:.


 Drive Terminator
 ----------------
 If the drive is going to be used as drive C: and the only hard drive
 in system, leave the terminator installed. If the drive is going to
 be one of two hard drives used, the terminator resistor pack must be
 removed if is NOT the last drive on the CONTROL cable.


 Cable Connection
 ----------------
 A single CONTROL cable for all hard disks installed is used in a
 daisy chain fashion and a 20 conductor DATA cable must be provided
 for each drive to be installed. The PC should provide a power cable.

 On all RODIME products, the edge connectors are cut with a key slot
 that identifies the pin 1 end. This should coincide with pin 1 on the
 controller connectors.
 --------------------------------------------------------------------


 IBM AT and Compatibles
 ======================

 Drive Address Configuration
 ---------------------------
 To install any hard disk drive in an IBM AT, the drive address must
 be configured as the SECOND drive, regardless of wether it is being
 used as drive C: or D:.

 If the drive is going to be used in the AT as drive C:, leave the
 terminator installed. If the drive is going to be used as drive D:,
 the terminator pack must be removed.


 Cable Connection
 ----------------
 The AT provides one of the two necessary cables, the CONTROL cable,
 in addition to the POWER cable. A 20 conductor, 20 pin "header to
 edge connector" DATA cable must be provided for each drive to be
 installed. For drive C:, the 20 pin header labeled J4 on the AT
 controller should be used. For drive D:, use J3.

 On all RODIME products, the edge connectors are cut with a key slot
 that identifies the pin 1 end. This should coincide with pin 1 on the
 controller J connectors.
 --------------------------------------------------------------------

 Controllers
 -----------
 In general, any controller which will operate the RO 200, RO 200E,
 RO 350 and RO 3000 Series disk drives will also operate the RO 5000
 Series disk drive. However, the controller must be able to set the
 step interval within the range of 5 us to 15 ms and address up to
 1224 cylinders to utilize full capacity. Further information is
 available from the RODIME or from the controller manufacturers them-
 seleves.



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                      F   E   A   T   U   R   E  S
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RODIME   RO 5065/5090 SER. RIGID DISK DRIVE  USER MANUAL PN USM-21550


 General Description
 ===================

 The RODIME RO 5000 Series disk drives are random access storage
 devices with three or four rigid 5.25 inch disks used as storage
 media. One disk surface is dedicated to continuous servo positioning
 data. High performance and reliability are achieved through the use
 of a rotary voice-coil positioner and a closed loop servo positioning
 system.


 Indicators
 ----------
 One red LED indicator is provided on the facia and is illuminated
 when the drive is READY and SELECTED. This LED is also used to
 indicate fault conditions in the drive. During power-on the LED will
 flash until the drive is READY and will go off if the drive is not
 SELECTED. If an error condition exists, a fault code will be flashed
 on the LED.


 Front Panel Fault Codes
 -----------------------
 In addition to its normal function of indicating READY and SELECTED
 status, the front panel LED is used to flash error messages should
 certain fault conditions arise on the drive. A four bit binary code
 is used (long flash = logical 1, short flash = logical 0) with the
 most significant bit occuring first:

 e.g. Short, short, long, short = 2 (0010)

    +------------+--------------------------------------------------+
    | Fault Code | Description                                      |
    +------------+--------------------------------------------------+
    | 01 (0001)  | No sync                                          |
    +------------+--------------------------------------------------+
    | 02 (0010)  | No Track Zero                                    |
    +------------+--------------------------------------------------+
    | 03 (0011)  | Motor speed outside +/- 1% tolerance at end of   |
    |            | power-up sequence                                |
    +------------+--------------------------------------------------+
    | 04 (0100)  | Motor speed outside +10%, -5% tolerance in normal|
    |            | operation                                        |
    +------------+--------------------------------------------------+
    | 05 (0101)  | Track cross time out / Seek error                |
    +------------+--------------------------------------------------+
    | 06 (0110)  | STEP received while WRITE GATE is true           |
    +------------+--------------------------------------------------+
    | 07 (0111)  | WRITE FAULT                                      |
    +------------+--------------------------------------------------+
    | 08 (1000)  | Microprocessor self-test fail (RAM)              |
    +------------+--------------------------------------------------+
    | 09 (1001)  | Microprocessor self-test fail (ROM)              |
    +------------+--------------------------------------------------+
    | 10 (1010)  | No INDEX                                         |
    +------------+--------------------------------------------------+
    | 11 (1011)  | Motor not up to speed                            |
    +------------+--------------------------------------------------+

 Fault codes 1, 2, 3, 8, 9, 10, and 11 are valid during the intitial
 power-up sequence of the drive. The remaining codes are valid during
 normal operation. All fault codes are latched by the processor and
 the drive must be restarted to clear.


 Illegal Addresses Map
 ---------------------
 Each drive has a label indicating the illegal of defective areas on
 the disk in bytes from index form. These illegal areas have been
 identified at the factory and contain a repeatable disk defect of one
 bit in length or greater. No such illegal address will exist on
 cylinder 0.

 Illegal Addresses      RO 5065  RO 5090
 ---------------------------------------
 Maximum allowed            30       40


 Seek Time, including settling
 -----------------------------
 ramp mode step rate =  5 us
 Track-to-Track      =  5 ms
 Average             = 28 ms
 Maximum             = 55 ms


 Write Pre-Compensation
 ----------------------
 No Write Precompensation is necessary on the RO 5000 Series disk
 drives.


 Low Level Format
 ----------------
 A "Low-Level Format" will be required if the drive has not been used
 in a DOS environment previously. All new RODIME drives require a low
 level format.


