Digital Equipment RZ25L SCSI Hard Drive

Default settings are in Bold or are selected by a .
View of J5. View of J6.

J5(A0,A1,A2) or J6(A0,A1,A2): SCSI ID: 0, 1, 2

View of J2.

J2: Features

  • (RES:) Reserved
  • Default Setting:Off: Factory Default Setting
  • Invalid Setting:On:Unsupported Setting.
    •
  • (DS & ME): Spin-Up
    (DS) (ME) Function
    Off Off Spin-Up on Power On
    Off On Spin-Up on SCSI Command
    On Off Spin-Up delayed by 12X the SCSI ID
    On On Spin-Up on Start Unit Command
  • (WP): Write Protection
  • Optional Setting:On: Write Protection Enabled.
  • Default Setting:Off: Write Protection Disabled.
    •
  • (PE): Parity
  • Optional Setting:On: Parity Checking Enabled.
  • Default Setting:Off: Parity Checking Disabled.
  • (RES:) Reserved
  • Default Setting:Off: Factory Default Setting
  • Invalid Setting:On:Unsupported Setting.
    •
  • (TP & TP): Termination Power
    TP TP Function
    Off Off No TP supplied to Drive Term. Resistors or SCSI Bus (pin#26)
    On Off Drive supplies it's own Term. Power
    Off On Drive supplies Term. Power to SCSI Bus (pin#26) only.
    On On Drive supplies Term. Power to itself & SCSI Bus (pin#26)
    (This is also a legal setting.)
    TP Position "A" (Horizontal Across pins closest to the PC Board)
    On Connects Term. Power between the SCSI Bus (pin#26)
    and the Drive's Termination Resistors.
    Off Termination Power Disabled

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