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Hard Drive: RODIME: RO5057R 49MB 5.25"/HH RLL ST506




R O 5 0 5 7 R    RODIME
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/HH              Cylinders    1224|     |     |
Capacity form/unform    49/   57 MB        Heads           3|     |     |
Seek time   / track  28.0/ 5.0 ms          Sector/track   26|     |     |
Controller           RLL / ST506           Precompensation 65535
Cache/Buffer               KB              Landing Zone
Data transfer rate    0.938 MB/S int       Bytes/Sector      512
                      0.938 MB/S ext
Recording method     RLL 2/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C        10 60    |    -40 70
Power: sleep              W     Humidity     %        10 85    |      5 90
       standby       13.6 W     Altitude    km    -0.305  1.830|
       idle               W     Shock        g         2       |     30
       seek          22.0 W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA        48
       spin-up            W     ECC        Bit
                                MTBF         h      20000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,FCC,UL1950               

Layout

RODIME RO 5000R SERIES HARD DISK DRIVE PRODUCT SPEC. PRO-22058-1

  +---------------------------------------------------------+
  |                                              (under PCB)|XX J3
  |                                                         |XX
  |                                                         |
  |                                                         |XX
  |                                                         |XXJ2
  |                                                         |XX
  |                                                         |X1
  |                                                         |
  |                                             * *4        |XX
  |                                      Drive  * *3        |XX
  |                                      Select * *2        |XX
  |                                             * *1    ++  |XX
  |                                          Terminator ||  |XX
  |                                          Resistor   ||  |XX J1
  |                                                     ||  |XX
  |                                                     ++  |X1
  +---------------------------------------------------------+

      2    J1       34  2    J2    20
     +XXXXXXXXXXXXXXXX--XXXXXXXXXXXX--------+
     |1             33  1          19XXXXXXX|
     |                                  J3  |
     |                                      |
     +--------------------------------------+
                                     Power

Jumpers

RODIME RO 5000R SERIES HARD DISK DRIVE PRODUCT SPEC. PRO-22058-1

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

Up to four RO 5000R series disk drives may be connected to any host
system. Each drive is provided with 4 pairs of pins to select the
drive for drives numbering from 1 to 4. A drive is selected by
shorting the relevant pair of pins with the jumper provided.

   +-----------+---------+---------+---------+---------+
   | Drive     |         |         |         |         |
   | Select    |Pins 1   |Pins 2   |Pins 3   |Pins 4   |
   +-----------+---------+---------+---------+---------+
   | Drive 1   |CLOSED   |OPEN     |OPEN     |OPEN     |
   +-----------+---------+---------+---------+---------+
   | Drive 2   |OPEN     |CLOSED   |OPEN     |OPEN     |
   +-----------+---------+---------+---------+---------+
   | Drive 3   |OPEN     |OPEN     |CLOSED   |OPEN     |
   +-----------+---------+---------+---------+---------+
   | Drive 4   |OPEN     |OPEN     |OPEN     |CLOSED   |
   +-----------+---------+---------+---------+---------+

 J3  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

Install

RODIME RO 5000R SERIES HARD DISK DRIVE PRODUCT SPEC. PRO-22058-1

Drive Mounting and Installation
-------------------------------
The RO 5000R Series disk drives may be mounted in a host system in
any orientation. The shipping lock effectively locks the actuator
during shipment and releases on power on.

A clearance of at least 0.1 inch must be provided between all drive
and the host frame to ensure functional vibration isolation. The
breather holes on the drive top cover must not be obstructed.

Mounting Holes
--------------
Thread 6-32 2A
12 Total
Max length: 0.125"

Cable Interconnection - 4 Drive System
--------------------------------------

       HOST
   +-----------+                                +-----------------+
   |           +---o---Control------------------+J1     Drive 1   |
   |           |   |    +-------Data------------+J2               |
   |           |   |    |             +-Power---+J3        ...    |
   |           |   |    |             |         +-----------------+
   |           |   |    |             |
   |           |   |    |             |         +-----------------+
   |Controller |   o----+-------------+---------+J1     Drive 2   |
   |           |   |    | +-----------+---------+J2               |
   |           |   |    | |           o---------+J3        ...    |
   |           |   |    | |           |         +-----------------+
   |           |   |    | |           |
   |           |   |    | |           |         +-----------------+
   +-----------+   o----+-+-----------+---------+J1     Drive 3   |
   +-----------+   |    | | +---------+---------+J2               |
   |           +---+----+ | |         o---------+J3        ...    |
   |           +---+------+ |         |         +-----------------+
   |           |   |        |         |
   |Data       +---+--------+         |         +-----------------+
   |Separator  |   +------------------+---------+J1     Drive 4   |
   |           +----------------------+---------+J2               |
   |           |                      o---------+J3        XXX    |
   +-----------+                      |         +-----------------+
                       DC voltages----+

... = Terminator Pack removed

XXX = Terminator Pack installed

Up to four RO 5000R series disk drives may be connected to any host
system. When connecting more than one drive to the host, the control
lines may be "daisy-chained" but the data lines require to be
radially (individually) connected. Each drive is provided with a
removeable resistor pack for the control interface lines (near J1)
and this pack must be removed from all except the last drive in the
chain.

J1 Control Connector
---------------------
Control signals for the drive are provided via the 34 pin edge
connector 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 from 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.

J2 Data Connector
------------------
Radial connection of read/write data signals is provided via a 20 pin
edge connector 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.

J3 Power Connector
-------------------
DC power is provided via a 4 pin AMP Mate-N-Lock connector part
number 350211-1, or equivalent, mounted via the solder side of the
board. The recommended mating connector is AMP P/N 1-480424-0
utilising AMP pins P/N 350078-4.

Cabling
-------
It is recommended that the control and data interface signals should
be carried by flat ribbon or twisted pair cable of maximum length 20
feet. The power cables should likewise be twisted pairs of each line
voltage and return.

Radio Frequency Interference
----------------------------
Electric field shall not exceed 2 volts/meter RMS in the range
1.5Hz to 10GHz.

Magnetic Field
--------------
There shall be no source of constant magnetic field which yields more
than 0.0005 tesla measured in the location occupied by the magnetic
heads.

Features

RODIME RO 5000R SERIES HARD DISK DRIVE PRODUCT SPEC. PRO-22058-1

Product Description
===================

General
-------
The RO 5000R series disk drives are random access storage devices
that use up to four 130mm diameter magnetic disks to provide up to
133.875 megabytes of unformatted on line capacity. (One megabyte
equals 1,000,000 bytes)

A servo surface is used in conjunction with a rotary voice-coil
positioner to achieve an average access time of 28 msec.

A microprocessor with 8K of program memory is used to control drive
operations. These operations include velocity control for all seeks,
fault detection, and interface.

Mechanical Assemblies
---------------------
The drive uses the sealed enclosure principle of Winchester head/disk
technology that provides a minimum contamination environment to
maintain head/media integrity.

An internal filter minimizes airborne contaminants within the drive
housing. A breather filter located at a minimum pressure area of the
enclosure ensures that internal pressures at critical sealing areas
are maintained above ambient.

Recording Heads and Disks
-------------------------
The drive contains up to four thin-film sputtered disks with one
read/write head per disk surface. With the exception of the servo
disk, data is recorded on both sides of each disk - one surface of
the servo disk is dedicated to servo information for the positioner.
Data is recorded to the disk using 2,7 RLL (run-length limited)
coding.

The electrical interface between the recording heads and the
electronics board is by means of a flat flexible circuit cable which
incorporates the preamplifier circuits for all of the recording
heads.

LED Indicator and Fault Codes
-----------------------------
A red LED indicator is provided on the facia and indicates that the
drive is selected and ready. This LED is also used to flash error
codes should certain fault conditions arise in the drive.

The selected-and-ready 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. For example, short-short-long-
short = 0010 = fault code 2.

    +-----+------+--------------------------------------------------+
    |Fault|Binary| Description                                      |
    |Code |      |                                                  |
    +-----+------+--------------------------------------------------+
    | 01  | 0001 | No sync.                                         |
    +-----+------+--------------------------------------------------+
    | 02  | 0010 | No Track 0                                       |
    +-----+------+--------------------------------------------------+
    | 03  | 0011 | Motor speed outside +/- 1% tolerance after       |
    |     |      | power-up                                         |
    +-----+------+--------------------------------------------------+
    | 04  | 0100 | Motor speed outside +10%, -5% tolerance in normal|
    |     |      | operation                                        |
    +-----+------+--------------------------------------------------+
    | 05  | 0101 | Track cross timeout                              |
    +-----+------+--------------------------------------------------+
    | 06  | 0110 | STEP received while "write gate" is TRUE         |
    +-----+------+--------------------------------------------------+
    | 07  | 0111 | Write fault                                      |
    +-----+------+--------------------------------------------------+
    | 08  | 1000 | Microprocessor failed RAM self test              |
    +-----+------+--------------------------------------------------+
    | 09  | 1001 | Microprocessor failed ROM self test              |
    +-----+------+--------------------------------------------------+
    | 10  | 1010 | No index                                         |
    +-----+------+--------------------------------------------------+
    | 11  | 1011 | Motor not up to speed                            |
    +-----+------+--------------------------------------------------+

Illegal Addresses
-----------------
Each drive will be accompanied by a map indicating the number of
bytes from INDEX which should not be used by the host. These will be
identified by cylinder, head and byte number. No illigal addresses
will exist in cylinders 0. The maximum number of illigal addresses
allowed per drive model is as follows:

        RO 5130R: 40
        RO 5095R: 30
        RO 5057R: 18

Data Access Time
----------------
The data access time is defined as the cylinder access time plus
rotational latency of the required address.

Average latency: 8.3 ms
Average data access time ramp mode: 36.3 ms
Head switching time: 5us (maximum)

Drive Life
----------
The minimum drive service life is 36,000 power on hours. The drive is
capable of 10,000 start/stop operations during service life.

Data Interface
--------------
The RO 5000R series disk drives transmit and receive differential
data coded in 2,7 RLL code. Decoding is performed by the host.













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