ADVANCED DIGITAL INFORMATION CORPORATION

DISK CO-PROCESSOR BOARD

 Data bus:                  16-bit, ISA

 Size:                      Full-length, full-height card

 Hard drive supported:      Up to 15 SCSI devices

 Floppy drives supported:   N/A

[Image]

                    CONNECTIONS

              Function                 Location

  37-pin SCSI connector - external        CN1

  50-pin SCSI connector - internal        CN2

  UPS monitor connector                   CN3

               PAL/CHANNELS/ADDRESS/INTERRUPT CONFIGURATION

  Channel
              PAL U3.11
                            PAL U4.11
                                             I/O
                                           Address
                                                          UPS
                                                       Address
                                                                    IRQ

     1
             814-198-001
                            814-197-001
                                            340h
                                                         346h
                                                                   IRQ11

     1
             31-1020-01
                            31-1022-01
                                            340h
                                                         346h
                                                                   IRQ11

     2
             814-198-001
                            814-197-002
                                            348h
                                                         34Eh
                                                                   IRQ12

     2
             31-1020-01
                            31-2043-01
                                            348h
                                                         34Eh
                                                                   IRQ12

     3
             814-198-002
                            814-197-001
                                            320h
                                                         326h
                                                                   IRQ10

     3
             31-2044-01
                            31-1022-01
                                            320h
                                                         326h
                                                                   IRQ10

     4
             814-198-002
                            814-197-002
                                            328h
                                                         32Eh
                                                                   IRQ15

     4
             31-2044-01
                            31-2043-01
                                            328h
                                                         32Eh
                                                                   IRQ15

                 PAL/CHANNELS/ADDRESS/JUMPER CONFIGURATION

  Channel   S1   S5/A     S5/B     S5/C     S5/D    S11/A   S11/B   S11/C

    1       2    open     open     open    closed   2 & 3   2 & 3   2 & 3
            &
            3

    2       2   closed    open     open     open    2 & 3   1 & 2   1 & 2
            &
            3

    3       2    open    closed    open     open    2 & 3   1 & 2   2 & 3
            &
            3

    4       2    open     open    closed    open    2 & 3   2 & 3   1 & 2
            &
            3

  Note: Pin numbers designated are in the closed position.