
1 6 5 3 - 4    MICROPOLIS
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/HH              Cylinders    1249|     |     |
Capacity form/unform    92/      MB        Heads           4|     |     |
Seek time   / track  16.0/     ms          Sector/track   36|     |     |
Controller           ESDI                  Precompensation
Cache/Buffer               KB              Landing Zone
Data transfer rate    1.250 MB/S int       Bytes/Sector      512
                            MB/S ext
Recording method     RLL                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C                 |
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle               W     Shock        g                 |
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h     150000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

**********************************************************************
                        L   A   Y   O   U   T
**********************************************************************
MICROPL. 1653  PRODUCT DESCRIPTION

  +---------------------------------------------------------+
  |               +-+-+-+-+-+-+-+-+           (J12 Reserved)|XX J12
  |               +-+-+-+-+-+-+-+-+                         |
  |              W1W2W3W4W5DA3DA2DA1                        |XX
  |                                                         |XX
  |                                                         |XX J2
  |                                                     ++  |X1
  |      COMPONENT SIDE                                 ||  |
  |                                                     ||  |XX
  |                                          Interface  |RN1|XX
  |                                          Terminator ++  |XX
  |                                                         |XX
  |    W13                                                  |XX J1
  |  ++-+                                                   |X1
  |  ++-+ LED                                               |
  |W12                                         Frame Gr.+W14|XX
  |                                                     ++  |XX J3
  +---------------------------------------------------------+   Power
                                                         (Solder Side)



**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
MICROPL. 1653  PRODUCT DESCRIPTION

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

 x = Jumper set at factory


 Drive Select  DA3/DA2/DA1
 -------------------------
  +--------+------------------------+
  |Drive   |    Select Jumpers      |
  |Address |   DA3    DA2    DA1    |
  +--------+------------------------+
  |  1     |   OPEN   OPEN   CLOSED |
  |  2     |   OPEN   CLOSED OPEN   |
  |  3     |   OPEN   CLOSED CLOSED |
  |  4     |   CLOSED OPEN   OPEN   |
  |  5     |   CLOSED OPEN   CLOSED |
  |  6     |   CLOSED CLOSED OPEN   |
  |  7     |   CLOSED CLOSED CLOSED |
  +--------+------------------------+


 Drive Address 0 is used as a "deselect" (i.e., no drive is selected).

 The three Drive Adress lines are decoded to select the
 correspondingly addressed drive. In multiple-drive systems, each
 drive must have its own unique address.

 Terminator Pack RN1 provides proper termination for the interface
 lines. When daisy-chaining the 1653 drives, the terminator is
 installed only in the last drive on the daisy chain.


 W1  Hard- or Soft-sectored mode
 -------------------------------
     CLOSED  The drive is configured to operate in the SOFT SECTOR
             mode. Address mark generation and detection are enabled,
             and the Sector/Address Mark Found interface signal is
             used to report address mark found. Sector size is
             selected by the host controller.
     OPEN    The drive is configured to operate in the HARD SECTOR
             mode. The Sector/Address Mark Found signal is used to
             transmit sector pulses to the host controller.
             (Factory default configuration)


 W2/W3/W4  Hard Sector Configuration
 -----------------------------------
     +--------+---------------------------+------------------------+
     |Sectors |     Bytes/Sector          |    Jumpers             |
     |        | Formatted   Unformatted   |  W4      W3      W2    |
     +--------+---------------------------+------------------------+
     |   35   |    512          595       |  OPEN    OPEN    OPEN  |
     |  *36   |    512          578       |  OPEN    OPEN    CLOSED|
     |   19   |   1024         1096       |  OPEN    CLOSED  OPEN  |
     |    9   |   2048         2314       |  OPEN    CLOSED  CLOSED|
     |    5   |   4096         4166       |  CLOSED  OPEN    OPEN  |
     |   32   |    512          651       |  CLOSED  OPEN    CLOSED|
     |   64   |    256          325       |  CLOSED  CLOSED  OPEN  |
     |    1   |  20832        20832       |  CLOSED  CLOSED  CLOSED|
     +--------+---------------------------+------------------------+
 * Factory default configuration

 The number of bytes/sector may be specified using the Set Bytes Per
 Sector command or by selecting a default sector configuration with
 option jumpers W2, W3, and W4.

 Note that the factory default sector configuration is 36 sectors (W2
 installed, W3 and W4 not installed).


 W5  Spindle Control Option
 --------------------------
     CLOSED  The drive must wait for a Start Spindle command to start
             the spindle motor.
     OPEN    The drive automatically starts the spindle motor at
             power-on. (Factory default configuration)


 W12/W13  LED
 ------------
 A jumper is installed at W12 or W13 to select the color of the LED.

 When a jumper is installed at W12, the red LED is selected.

 When a jumper is installed at W13 (the factory default configura-
 tion), the green LED is selected.


 W14 Frame Ground Option
 ------------------------
     CLOSED  Frame ground is connected to logic ground.
  x  OPEN    Frame ground is not connected to logic ground


 J12 RESERVED!


