
ADAPTEC

ACB-5500

  Data bus:                  None (SCSI to ST506 interface)

  Size:                      Drive card

  Hard drives supported:     SCSI to four RLL ST506 drives

  Floppy drives supported:   None

[Image]

                             CONNECTIONS

                    Function                          Location

  34-pin control cable connector-hard drive(s)           CN1

  20-pin data cable connector-drive 0                    J2

  20-pin data cable connector-drive 1                    J3

  20-pin data cable connector-drive 2                    J4

  20-pin data cable connector-drive 3                    J5

  4-pin connector-DC power                               J7

  50-pin SCSI connector-to host adapter                  J8

                         USER CONFIGURABLE JUMPERS

               Function                     Location          Setting

     SCSI bus reset is "hard"             J6/jumper 1         closed

      SCSI bus reset is "soft"             J6/jumper 1          open

     Factory configured - do not          J6/jumper 2          open
      alter

     LUN 0 is a hard-sectored drive       J6/jumper 3         closed

      LUN 0 is not a hard-sectored         J6/jumper 3          open
      drive

     LUN 1 is a hard-sectored drive       J6/jumper 4         closed

      LUN 1 is not a hard-sectored         J6/jumper 4          open
      drive

     Factory configured - do not          J6/jumper 5          open
      alter

     Self-diagnostics enabled             J6/jumper 6         closed

      Normal operation                     J6/jumper 6          open

     SCSI parity check enabled            J6/jumper 7         closed

      SCSI parity check disabled           J6/jumper 7          open

                               SCSI ADDRESS

    SCSI ID         J6/jumper 8        J6/jumper 9        J6/jumper 10

          0            open                open               open

          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

