Micropolis 4345WS Disk Drive
       Ultra SCSI (SCSI-3), Wide, Single-Ended, 68-Pin Unitized Connector

Formatted Capacity
  Per Drive 4.55 GB
  Bytes per Sector 512
  Sectors per Track Variable
  Cylinders 4811
Performance Specifications
  Avg. Seek Time (includes settling time) 7.9 msec
  Avg. Rotational Latency 4.17 msec
  Rotational Speed 7,200 rpm
  Data Transfer Rate at Interface
  Ultra SCSI 40 MB/sec
  Synchronous 20 MB/sec
  Asynchronous 10 MB/sec
  Internal Data Rate
  Inner Zone 76 Mb/sec
  Outer Zone 125 Mb/sec
  MTBF (power-on hours) 650,000 (Office Environment, Class B)
  Positioner Fully balanced rotary voice coil
  Parking Automatic park and lock
General Functional Specifications
  Interface Ultra SCSI (SCSI-3)
  Supports Full Common Command Set Yes
  Drivers/Receivers Wide, Single-Ended
Power Requirements
  +12V ±5% (average) 0.55 A
  +12V ±5% (max during start-up) 1.75 A
  +5V ±5% (average) 1.10 A
Power Dissipation, typical
  Idling 10 Watts (34.1 Btu/hr)
  Seeking 12 Watts (41.0 Btu/hr)


Configuration Options
 SCSI ID
Jumpers at Pin 3-4, 5-6, 7-8, & 9-10 select the SCSI ID.
Each SCSI device on one Host Adapter must have a
unique SCSI ID (0-15). SCSI ID0 is the Default.

 
SCSI ID 9-10 7-8 5-6 3-4   SCSI ID 9-10 7-8 5-6 3-4
      0  N   N   N   N           8  Y   N   N   N
      1  N   N   N   Y           9  Y   N   N   Y
      2  N   N   Y   N          10  Y   N   Y   N
      3  N   N   Y   Y          11  Y   N   Y   Y
      4  N   Y   N   N          12  Y   Y   N   N
      5  N   Y   N   Y          13  Y   Y   N   Y
      6  N   Y   Y   N          14  Y   Y   Y   N
      7  N   Y   Y   Y          15  Y   Y   Y   Y
              Y = jumper installed

 Interface Termination (W4)
  Jumper installed at W4 (Default) - The drive provides
    termination for the interface lines; onboard
    termination is electrically enabled.
  Jumper omitted at W4 - The drive does not provide
    termination for the interface lines; onboard
    termination is electrically disabled.
 
 Terminator Power (W1, W2, W3)
  Jumper installed at W1 (Default) - The drive provides
    terminator power.
  Jumper installed at W2 - The host provides terminator
    power (via Interface Connector J1A).
  Jumper installed at W3 - The drive provides terminator
    power (via J1A) to the SCSI Bus.

 Spindle Control (SP0)
  Jumper installed at SP0, jumper omitted at SP1 - The
    spindle motor starts when SCSI ‘START UNIT’
    command is received.
  Jumpers omitted at SP0 (Default) and at SP1 - The
    spindle motor starts at power-on.

 Spindle Delay (SP1)
  Jumper installed at SP1, jumper omitted at SP0
    Spindle motor start-up is delayed, based on SCSI ID
    (12 seconds per SCSI ID).
  Jumpers omitted at SP1 (Default) and at SP0 - The
    spindle motor starts at power-on.

 Write Protect (WP)
  Jumper installed at WP - The drive is write protected.
  Jumper omitted at WP (Default) - The drive is not write
    protected.
 
 BUS Parity Check (PTY)
  Jumper installed at PTY - The drive neither generates
    nor detects parity.
  Jumper omitted at PTY (Default) - The drive generates
    parity and has parity detection enabled.

 Remote LED
  Open-collector output - Used to drive a user-supplied
  LED to indicate the drive is active.

Option Jumper Block

  35-36    Reserved
  33-34    W3
  31-32    W2
  29-30    W1
  27-28    W4
  25-26    Key 2----Not connected
  24-23    Reserved
  21-22    Reserved
  19-20    Key 1----Not connected
  17-18    PTY------Bus Parity Check Option
  15-16    WP-------Write Protect Option
  13-14    SP1------Spindle Delay Option
  11-12    SP0------Spindle Control Option
  9-10     SCSI ID
  7-8      SCSI ID
  5-6      SCSI ID
  3-4      SCSI ID
  1-2      Remote LED