Micropolis hard Disk Drives, Specifications, Support, Specs, Jumpers, Manual, Images

Micropolis 1624-7

Hard Disk Drive

Overview

Model Capacity Size Height Interface Bus Type
Micropolis 1624-7 668MB 5.25" HHT Fast SCSI2

Specifications

Size 5-1/4"
Interface SCSI-2
Encoding Method
Formatted Capacity 668 MB
Disks 4
Heads 7
Cylinders 2112
Sectors variable
Buffer Size N/A
Average Seek 16 msec
Single Track 2.5 msec
Rotation Speed / Avg. Latency 3600 rpm +/- 0.5%
Transfer Rate to / from media 20 Mbits / sec
Transfer Rate to / from buffer N/A
Tracks Per Inch (TPI)
Bits Per Inch (BPI)
Dimensions 8.0"L x 5.75"W x 1.625"H
Weight 5.75 lbs.

Power Requirements

+12V +/-5% +5V +/-5% Power
Spin up 2.0A (max)
Read / Write .9A avg .8A avg
Typical 14 Watts

Notes

Notes: 
Drive Addressing and Interface Termination

         ___________Slave sync(pin 20)
        |   ________Master sync(pin 16)
        |  |  ______Bus parity check option( 7th set of  pins) 
        |  | | _____Write protect option(6th set of pins)
        |  | || ____Spindle control option(4th set of pins)
        |  | ||| ___ID2    
        |  | |||| __ID1        
        |  | ||||| _ID0                    Pin 1  
        |  | ||||||                             |             
        ___________    __________________________      ________ 
      _|    J2           |   |          J1                                |     |   J3        | |
     | |___________|_ |__________________________|___|________|:|
     |                                                         O o|
     |    W31..    _________                                   ||
     |     ...    |_________|                              W8--/|
     |   W2  W1       RN1                                       |
     |                                                          |
     |                                                          |
     |                                                          |
     |                                                          |
     |                                                          |
     |                                                          |
     |                                 Component Side           |
     |                                                          |
     |                                                          |
     |                                              W13.        |
     |                                              W12:        |
     |__________________________________________________________|
ID0, ID1, ID2 SCSI Address Jumpers
  The SCSI ID (drive address) jumpers are identified as ID0, ID1,
  and ID2. ID selection is binary, as shown in the table below.

SCSI
Address		 Jumpers
ID2 ID1 ID0
0 out out out
1 out out in
2 out in out
3 out in in
4 in out out
5 in out in
6 in in out
7 in in in

  For multiple drive installations, on one Host Adapter, each drive must
  have a unique address. Drives are configured as SCSI ID 7 at the factory.

RN1 Interface Terminator
  The Interface Terminator factory installed at RN1 provides
  proper termination for the interface lines. When daisy-chaining
  multiple drives, leave the terminator installed only in the last
  physical drive (or drives) on the daisy chain cable; remove the
  terminator from each of the other drives (or the host computer).

Bus Termination Power Option
  A jumper is installed at W1, at W2, or at W2 and W31 to select the
  source of terminator power (+5V) for the SCSI Bus terminator packs
  on the device electronics board.

  DO NOT INSTALL jumpers at both W1 and W31

  When a jumper is installed at W1(the factory default configuration),
  the drive provides terminator power to it's on-board terminators.

  When a jumper is installed at W2 , terminator power is is provided by
  the host system via the interface cable J1, pin 26 (TERMPWR).

  When a jumper is installed at both W2 and W31 ,the drive provides
  terminator power to its on board terminator and also the SCSI bus via
  interface cable J1,pin 26(TERMPWR).

Spindle Control Options
  A jumper bridging pins 7 and 8 of J2 (the 4th set of pins) is used to
  select the spindle control option.

  When a jumper is installed, the drive must wait for an Start Unit
  command to start the spindle motor.

  When a jumper is not installed (the factory default configuration),
  the drive automatically starts the spindle motor at power-on

Bus Parity Option
  A jumper bridging pins 13 and 14 of J2(7th set of pins) is used to
  select the parity check option.

  When a jumper is installed, the drive generates but does not detect
  parity.

  When a jumper is not installed, (the factory default configuration), the
  drive generates parity and enables parity detection.

Write Protect Option
  A jumper bridging pins 11 and 12 of J2 (the 6th set of pins) is used
  to select the write protect option.

  When a jumper is installed, the drive is write protected. CAUTION: The
  drive can still be formatted.

  When a jumper is not installed(the factory default configuration),
  the drive is not write protected.

Led Color Option
  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 configuration)
  the green LED is selected.

Frame Ground Options
  Jumper W8 selects the frame ground option.

  W8 is installed, the drive's frame ground is connected to logic
  ground.

  When a jumper is not installed at W8 (the factory default
  configuration), frame ground is not connected to logic ground.

Spindle Synchronization Option
  The Rotational Position Locking field (MODE SELECT command, Page Code
  04h) is used to specify spindle synchronization operation; see
  document #110366(SCSI Implementation in Micropolis "MZR" Products) and
  ANSI SCSI Standard.

  Unsynchronized: If the drive is est to Unsynchronized (PRL=01b), it
  ignores the SLAVE SYNC signal.

  Slave: If the drive is set to Slave (RPL=01b), it does not generate the
  MASTER SYNC signal or the SLAVE SYNC signal but synchronizes its
  index to the SLAVE SYNC signal (J2,pin 20) supplied by an external
  source

  Master: If the drive is set to MASTER (RPL=10b), it generates the SLAVE
  SYNC output signal (j2,pin 20) for use directly by the slave drives.

  Master Control: If the drive is set to Master Control (RPL=11b), it
  generates the MASTER SYNC signal(j2,pin 20). This output is used by
  the controller to generate the SLAVE SYNC signal(J2,pin 20) for the
  slave drives.