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Text File  |  1989-09-15  |  8KB  |  174 lines
  1.                  MICROPOLIS 1578 DISK DRIVE
  2.                        SPECIFICATIONS
  3.  
  4.                                   Model Number
  5. Unformatted Capacity:               1578-15
  6.  
  7.   Total Mbytes        ---------------- 382.3 ---------------------
  8.   Disk Platters       -------------------- 8 ---------------------
  9.   Read/Write Heads    ------------------- 15 ---------------------
  10.   Cylinders           ----------------- 1224 ---------------------
  11.   Bytes per track     --------------- 20,832 ---------------------
  12.  
  13. Formatted Capacity (typical)
  14.  
  15.   Total Mbytes        ---------------- 331.7 ---------------------
  16.   Bytes per Sector    ------------------ 512 ---------------------
  17.   Sectors per Track   ------------------- 36 ---------------------
  18.  
  19. PC Setup
  20.  
  21.   When using SCSI in a PC, the most common method is to run your
  22.   setup program and define No Drives Present. The SCSI Host Adapter
  23.   will automatically self-configure on power-up. To install the
  24.   drive, follow the manufacturer's instructions to use the on-board
  25.   BIOS routine or software that was supplied with the Host Adapter.
  26.  
  27. Performance Specifications
  28.  
  29.   Seek Time (including settling time)     Track-to-Track   4 msec
  30.                                           Average         16 msec
  31.                                           Maximum         35 msec
  32.   Average Rotational Latency                            8.33 msec
  33.   Rotational Speed                              3600 rpm +/- 0.5%
  34.   Data Transfer Rate at Interface
  35.     Synchronous                                    4.0 Mbytes/sec
  36.     Asynchronous                                   1.6 Mbytes/sec
  37.   Internal Data Rate                                 10 Mbits/sec
  38.   MTBF                                              150,000 hours
  39.   Positioner                     Fully balanced rotary voice coil
  40.   Parking                                 Automatic park and lock
  41.  
  42. General Functional Specifications
  43.  
  44.   Interface                                                  SCSI
  45.   Supports Full Common Command Set
  46.   Write Precompensation Start Cylinder                       1224
  47.   Reduced Write Current Start Cylinder                       1224
  48.   Landing Zone                                               1224
  49.   Mounting Plane                                  Any orientation
  50.  
  51. Power Requirements
  52.  
  53.   +12V +/-5%                                            2.25A avg
  54.                                       (4.25A max during start-up)
  55.   +5V +/-5%                                              2.0A avg
  56.   Power dissipation, typical                             32 Watts
  57.  
  58. Drive Addressing and Interface Termination
  59.  
  60.                                                 PIN 1
  61.             J2                     J1              |
  62.       ____________   _______________________________      J3
  63.    __|            |_|                               |___________ 
  64.   |  |____________| |_______________________________| |  POWER  |
  65.   |                     RN202     RN203     RN204     |_________|
  66.   |                                                             |
  67.   |                                                             |
  68.   |                             ... W201                        |
  69.   |                             123                             |
  70.   |                                                             |
  71.   |                                                      W5     |
  72.   |                                                      W4     |
  73.   |   (Component Side)                                  W20     |
  74.   |                                                     ID0     |
  75.   |                                                     ID1     |
  76.   |                                                     ID2     |
  77.   |                                                             |
  78.  
  79.  
  80.                 ____ ID2
  81.                | ___ ID1
  82.                || __ ID0                        PIN 1
  83.           J2   |||                 J1              |
  84.       ____________   _______________________________      J3
  85.    __|            |_|                               |___________
  86.   |  |____________| |_______________________________| |  POWER  |
  87.   |                     RN202     RN203     RN204     |_________|
  88.   |  W4 W5                                                      |
  89.   |                                                         W21 |
  90.   |                             W1 W2                           |
  91.   |                                                             |
  92.   |                             W11                             |
  93.   |                                                             |
  94.   |                                                      W20    |
  95.   |   (Component Side)                                          |
  96.   |                                                             |
  97.   |                                                             |
  98.   |                                                             |
  99.   |                                                             |
  100.  
  101.  
  102. ID0, ID1, ID2 SCSI Address Jumpers
  103.   The SCSI ID (drive address) jumpers are identified as ID0, ID1,
  104.   and ID2. ID selection is binary, as shown in the table below.
  105.  
  106.    SCSI              Jumpers
  107.   Address        ID2   ID1   ID0
  108.   -------        ---   ---   ---
  109.      0           out   out   out
  110.      1           out   out    in
  111.      2           out    in   out
  112.      3           out    in    in
  113.      4            in   out   out
  114.      5            in   out    in
  115.      6            in    in   out
  116.      7            in    in    in
  117.  
  118.   For  multiple drive installations, on one Host Adapter,each drive
  119.   must unique address. Drives are configured as SCSI ID 0 at the
  120.   factory.
  121.  
  122. RN202, RN203, RN204 Interface Terminator
  123.   The Interface Terminators factory installed at RN202, RN203, and
  124.   RN204 provide proper termination for the interface lines. When
  125.   daisy-chaining multiple drives, leave the terminators installed
  126.   only in the last physical drive on the daisy chain cable; remove
  127.   all three terminators from each of the other drives. In most 
  128.   PC/AT installations, the C: drive is actually at the end of the
  129.   cable and should retain the terminators.
  130.  
  131. W201 or W1, W2 Terminator Options
  132.   W201 positions 1-2 and 2-3 (or W1 and W2, respectively, on second
  133.   board shown) select the source of terminator power (+5V) for the
  134.   interface terminators. If a jumper is installed at positions 1-2
  135.   (W1) and no jumper is installed at position 2-3(W2)(the factory
  136.   default configuration), the drive provides terminator power. This
  137.   configuration is used for PC/AT applications. If no jumper is
  138.   installed at W201 position 1-2(W1) but a jumper is installed at
  139.   position 2-3(W2), terminator power must be provided by the host
  140.   computer system via interface connector J1, pin 26.
  141.  
  142. W11 Bus Option
  143.   W11 (only present on Rev C and higher boards of the second type
  144.   shown) allows the drive to supply interface terminator power to
  145.   the SCSI Bus. If W11 is not installed (the factory default
  146.   configuration), the drive does not supply SCSI bus interface
  147.   terminator power. W11 should not be installed for PC/AT
  148.   applications.
  149.  
  150. W5 Spindle Option
  151.   W5 selects the spindle control option. If W5 is installed, the
  152.   drive waits for a Start Spindle command (after power is applied)
  153.   to start the spindle motor. If W5 is not installed (the factory
  154.   default configuration), the drive automatically starts the
  155.   spindle motor at power-on. W5 is not installed for PC/AT
  156.   installations.
  157.  
  158. W4 Bus Parity Check Option
  159.   W4 selects the parity check option. If W4 is installed, the drive
  160.   neither generates nor detects parity. If W4 is not installed (the
  161.   factory default configuration), the drive generates parity and
  162.   enables parity detection. W4 is not installed most PC/AT
  163.   applications. Verify the correct configuration required by your
  164.   Host Adapter.
  165.  
  166. W21 Ground Options
  167.   W21(only implemented on Rev C and higher boards of the second
  168.   type shown) is used to connect the drive's logic ground to frame
  169.   ground. The factory default configuration, which should