
4 1 1 0   A    MICROPOLIS
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders    2428| 2048| 1024| 1024
Capacity form/unform  1057/ 1205 MB        Heads           9|   16|   16|   16
Seek time   / track   8.5/ 1.5 ms          Sector/track     |   63|   63|   63
Controller           IDE / ATA2 FAST/ENHA  Precompensation
Cache/Buffer           512 KB SEGMENTED    Landing Zone
Data transfer rate          MB/S int       Bytes/Sector      512
                     10.000 MB/S ext
Recording method     RLL                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C           50    |    -40 65
Power: sleep              W     Humidity     %         5 95    |      5 95
       standby        3.4 W     Altitude    km    -0.061  3.048| -0.305 15.240
       idle           6.0 W     Shock        g        10       |     60
       seek           8.0 W     Rotation   RPM      5400
       read/write     8.0 W     Acoustic   dBA        32
       spin-up            W     ECC        Bit   88,ON THE FLY
                                MTBF         h     500000
                                Warranty Month        60
Lift/Lock/Park     YES          Certificates


**********************************************************************
                        L   A   Y   O   U   T
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MICROPL. 4110 A  PRODUCT DESCRIPTION 136162 REV. A, 1994

  +---------------------------------------------------------+xx
  |  COMPONENT SIDE                                         |XX  J1B
  |  Board No. 136292                                       |  1
  |                                                         |XX
  |                                        xx ST1           |XX
  |                                        xx ID1           |XX
  |                                        xx ID0           |XX
  |                                                         |XX  J1
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |  1
  |                                        xx RESERVED      |XX
  |                                        xx SS1           |XX  J1A
  +---------------------------------------------------------+  1



**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
MICROPL. 4110A  PRODUCT DESCRIPTION 136162 REV. A, 1994

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

 SS1  Spindle Synchronization
 ----------------------------
 Jumper SS1 controls the spindle synchronization function.

 SS1 INSTALLED (factory default)
     The spindle synchronization signal is enabled onto pin 28 of
     Signal Connector J1.

 SS1 NOT INSTALLED
     The spindle synchronization signal is not enabled onto pin 28 of
     Signal Connector J1.



 ST1  Spindle Synchronization Signal
 -----------------------------------
 ST1  INSTALLED
      The drive receives the spindle synchronization signal from pin
      28 of Signal Connector J1.

 ST1  NOT INSTALLED (factory default)
      The drive emits the spindle synchronization signal onto pin 28
      of Signal Connector J1.


 ID0/ID1  Master/Slave Selection
 -------------------------------
 The interface allows up to two drives (a Master and one Slave) to be
 attached to the AT/IDE bus.
        +-----+------+------------------------------------+
        | ID1 | ID0  |Description                         |
        +-----+------+------------------------------------+
        | IN  | IN   |Drive emulates BOTH Master and Slave|
        +-----+------+------------------------------------+
        | IN  | OUT  |Drive is Master, Slave is present   |
        +-----+------+------------------------------------+
        | OUT | IN   |Drive is Slave                      |
        +-----+------+------------------------------------+
        | OUT | OUT  |Drive is Master                     |
        +-----+------+------------------------------------+

 Drive emulates BOTH Master and Slave:
 -------------------------------------
 Specifies that one drive can emulate BOTH the Master drive (Drive 0)
 and the Slave drive (Drive 1). This option allows for existing host
 systems to utilize the full capacity of the drive.

 When the drive is configured as BOTH the Master and the Slave, the
 following partition is implemented:

      Model 4110A
         Drive 0: 1024 cylinders, 16 heads, 63 sectors

         Drive 1: 1024 cylinders, 16 heads, 63 sectors


 Drive is Master, Slave is present:
 ----------------------------------
 Specifies the Master drive (Drive 0) when two drives are used in a
 system. The other drive is Slave.


 Drive is Slave:
 ---------------
 Specifies the Slave drive (Drive 1) when two drives are used in a
 system. The other drive is Master.


 Drive is Master:
 ----------------
 Specifies the Master drive (Drive 0) when one drive is used in a
 system.

 When the drive is configured as a Master or as a Slave, the re-
 commended drive type parameters are as follows:

 Model 4110A: 2048 cylinders, 16 heads, 63 sectors



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                      I   N   S   T   A   L   L
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MICROPL. 4110A  PRODUCT DESCRIPTION 126162 REV. A

 Notes on Installation
 =====================

 Dimensions and Mounting
 -----------------------
 The drive uses industry-standard mounting for 3 1/2-inch, 1-inch high
 Winchester disk drives.

 Recommended orientation is vertical on either side, or horizontal
 with the Device Electronics board down; other mounting orientations
 may be used.

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

 No matter what mounting orientation is used, Micropolis specifies
 that the maximum HDA casting temperature not exceed 60*C (140*F).

 CAUTION
 The mounting screws must be selected so that they do not penetrate
 the bottom mounting holes by more than 0.20 inches or the side
 mounting holes by more than 0.156 inches. Screws that are too long
 may short to PCBA components.


 HDA Casting Temperature
 -----------------------
 Micropolis specifies the maximum HDA casting temperature to be 65*C
 (149*F). Not exceeding this temperature will ensure that head-to-
 media interface never exceeds its temperature limit.

 If the HDA casting temperature measurement cannot be made, the
 ambient air temperature around the drive must be kept at or below
 50*C (122*F).


 J1  Signal Connector
 --------------------
 Signal Connector J1 is a 40-pin connector. The bus interface
 connection is made via this connector. Signals on J1 include the 16-
 bit data bus and control and address lines.

 Recommended Cable: 3M Scotchflex 3302-40 or equivalent
 Pins: AMP 350078-4
 Suggested Wire Size: 18 AWG


 J1A  Power Connector
 --------------------
 Power is supplied to the drive via connector J1A (4-pin, keyed, AMP-
 MATE-N-LOCK).This power connector is the industry standard and is
 used in most applications.

 The recommended mating connector is AMP 1-480424-0 or equivalent;
 the recommended pins are AMP 350078-4, or equivalent.

   pin 1    +12 VDC
   pin 2    +12 Volts Return
   pin 3    + 5 Volts Return
   pin 4    + 5 VDC


 J1B  Power Connector
 --------------------
 J1B is a 3-pin, keyed connector. Both +5V and +12V are supplied to
 the drive via this connector.

 This power connector is usually used by low-power computer systems.
 The pin assignment in the following table differ from the pin
 assignments specified in the current ATA Specification in order to
 maintain compatibility with industry-standard conventions.

 The recommended mating connector is MOLEX 5480 or equivalent.

   pin 1    + 5 VDC
   pin 2    +12 VDC
   pin 3    Return


 Interface Electrical Characteristics
 ------------------------------------
 Interface control, data, and status signals are TTL compatible in
 both send and receive directions. Maximum cable length is 18 inches.

 The following cable specifications are provided to ensure system
 integrity.

 Driver IOL sink current = 12 milliamps (minimum)
 Driver IOH source current is -400 microamps (maximum)
 Cable capacitive loading = 200 picofarads (maximum)



**********************************************************************
                      F   E   A   T   U   R   E  S
**********************************************************************
MICROPL. 4110A  PRODUCT DESCRIPTION 136162 REV. A, 1994


 Some Features of the Drives
 ---------------------------
 - Digital Servo gives faster, more accurate positioning by adapting
   to dynamically changing environmental parameters

 - 30 to 47 MHz internal data transfer rate - highest performance
   AT/IDE drive available in the industry

 - Command Overhead less than 180 milliseconds

 - Supports emulation for both Master and Slave to allow usuage of
   existing DOS-to-BIOS communications

 - "Plug-and-play" compatibility with smaller capacity AT/IDE drives

 - Multiple Segment Read Look-Ahead operations for repetitive and
   sequential access

 - Multi-segment write caching

 - Extended command set includes Read Multiple and Write Multiple
   commands

 - EISA Demand Mode B DMA operation

 - LBA Mode

 - User can reassign bad sectors

 - User can flag bad sectors

 - Four bytes of ECC are transferred to host on Read Long and Write
   Long commands to maintain backward compatibility to existing
   designs

 - Power down command support


 Seek Time
 ---------
       +----------------------------------+--------+
       |                                  | 4110A  |
       +----------------------------------+--------+
       |Track-to-Track         msec. typ. |   1.5  |
       +----------------------------------+--------+
       |Average                msec. typ. |   8.5  |
       |                       msec. max. |  20    |
       +----------------------------------+--------+
       |Latency                msec. avg. |   5.56 |
       +----------------------------------+--------+


 Mechanical Assembly
 -------------------
 The mechanical assembly consists of a sealed head/disk assembly
 (HDA). The HDA consists of a die-cast structure which contains
 virtually all of the drive's mechanical components. Two die-cast
 members create a sealed, clean area. Components included in the clean
 area are the servo head and data heads, magnetic disks, rotary
 positioner, and spindle.


 Air Filtration System
 ---------------------
 The drives are designed to provide contamination control within the
 HDA throughout the life of the drive with zero maintenance. Air
 within the HDA is continuously recirculated and filtered through a
 high efficiency filter.

 A breather filter protects the HDA from inward contamination
 migration during air pressure changes associated with drive
 temperature or atmospheric pressure variations.


 Adjustments and Maintenance
 ---------------------------
 The drives require no adjustments or periodic maintenance;
 additionally, no mechanical adjustments are required to prepare a
 system for handling or shipment.


