
MYLEX CORPORATION

DAC960SX (DBX960S-3-UDR)

DAC960SX (DBX960S-6-UDR)

DAC960SX (DBX960S-6-FWR)

Card Type              Hard drive controller card
Processor              RISC
Maximum Onboard Memory 128MB DRAM (EDO supported)
Hard Drives supported  Up to 30 Ultra SCSI devices
Floppy drives          None
supported
Data Bus               Up to two host Single-ended/Differential Wide
                       Ultra-SCSI channels
Form Factor Size       5.25 inch
RAID levels supported  0, 1, 0+1, 3, 5, JBOD

[Image]

                                CONNECTIONS

         Function            Location         Function          Location

  LCD panel interface          J1       Diagnostic port            J6

  Battery back-up              J2       Edge connector             J7

  Daughterboard connector      J3       Edge connector             J8
  1

  Daughterboard connector      J4
  2

                        USER CONFIGURABLE SETTINGS

                Function                      Label           Position

     Channel 0 termination enabled       J5/pins 1 & 2        Closed

      Channel 0 termination disabled      J5/pins 1 & 2         Open

     Channel 1 termination enabled       J5/pins 3 & 4        Closed

      Channel 1 termination disabled      J5/pins 3 & 4         Open

     Host channel 0 termination          J5/pins 5 & 6        Closed
      enabled

      Host channel 0 termination          J5/pins 5 & 6         Open
      disabled

     Factory configured - do not         J5/pins 7 & 8         Open
      alter

     Factory configured - do not         J5/pins 9 & 10        Open
      alter

    DRAM CONFIGURATION

  Size        Bank 0

   8MB      (2) 1M x 36

  16MB      (2) 2M x 36

  32MB      (2) 4M x 36

  64MB      (2) 8M x 36

  128MB    (2) 16M x 36

                         TERMINATION CONFIGURATION

            Notes: When using differential SCSI, external termination
            must be used and termination on the controller and
            daughterboard must be disabled. I.e., all termination jumpers
            (JP1/1-JP1/5) should be opened. (See User Configurable
            Settings.)

            If Narrow SCSI (8-bit) is connected to any channel, the
            controller must be at one end of the bus with termination
            enabled (J5) on that channel.

            If dual mode system, terminate SCSI bus externally.

                       MISCELLANEOUS TECHNICAL NOTES

  The DAC960SX controller (which can reside within a DAC9060SXI
  enclosure) interfaces between the host system and a disk array. The
  controller is installed with one of several distribution boards:
  DBX960X-3-UDR, DBX960S-6-FWR and DBX960S-6-UDR. A DBI960SX
  daughterboard can be installed with the latter two, providing a 3
  channel upgrade. A battery backup unit can be installed with all.

DBX960SXI (ENCLOSURE)

[Image]

DBX960SXI Front Panel

                                CONNECTIONS

        Function          Location           Function          Location

  ESC key/return to          J1        Alarm key/reset           ALARM
  previous screen                      audible alarm

  Keys defined by          J2-J5       Unidentified               J7
  Instruction Line
  (last line of the
  LCD display menu

  Enter key/execute          J6
  selected functions

Card Type               Distribution board
Hard Drives supported   Up to 12 UltraSCSI Wide/Narrow devices
Floppy drives supported None
Data Bus                One host Differential Wide Ultra-SCSI channel

[Image]

Distribution Board DBX960S-3-UDR

                                CONNECTIONS

         Function           Location          Function         Location

  10-pin serial port -         J1        50-pin SCSI channel      J8
  internal                               1 connector -
                                         internal

  68-pin SCSI connector -      J2        Power connector          J9

  host channel 0

  10-pin connector - dual      J3        18-pin connector -       J10
  controller                             channel 1 fault
  communications port                    indicator

  68-pin SCSI channel 0        J4        18-pin connector -       J11
  connector - internal                   channel 0 fault
                                         indicator

  50-pin SCSI channel 0        J5        20-pin connector -       J12
  connector -                            AEMI (Array
                                         Enclosure
  internal                               Management
                                         Interface)

  68-pin SCSI channel 1        J7        Power connector          J13
  connector -

  internal

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     Factory configured - do not alter          J6/5           N/A

     Serial port protocol is SLP1               J6/6          Open

      Serial port protocol is VT100              J6/6         Closed

     Factory configured - (serial port          J6/7         Closed
      baud rate is 19.2)

     Controller is only controller in           J6/8         Closed
      system or

      Controller is primary in two
      controller system

      Controller is secondary in two             J6/8          Open
      controller system

            HOST CHANNEL SCSI ID SELECTION

  SCSI ID    JP6/1      JP6/2      JP6/3      JP6/4

     0        Open       Open      Open       Open

     1       Closed      Open      Open       Open

     2        Open      Closed     Open       Open

     3       Closed     Closed     Open       Open

     4        Open       Open     Closed      Open

     5       Closed      Open     Closed      Open

     6        Open      Closed    Closed      Open

     7       Closed     Closed    Closed      Open

     8        Open       Open      Open      Closed

     9       Closed      Open      Open      Closed

    10        Open      Closed     Open      Closed

    11       Closed     Closed     Open      Closed

    12        Open       Open     Closed     Closed

    13       Closed      Open     Closed     Closed

    14        Open      Closed    Closed     Closed

    15       Closed     Closed    Closed     Closed

                         TERMINATION CONFIGURATION

            Note: Differential resistor packs RP1, RP2 and RP3 must be
            installed to enable Host Channel 0 termination and removed to
            disable termination.

Card Type               Distribution board
Hard Drives supported   Up to 30 UltraSCSI Wide/Narrow devices
Floppy drives supported None
Data Bus                Up to two host Ultra-SCSI Wide channels

[Image]

Distribution Board DBX960S-6-FWR

                                CONNECTIONS

      Function          Location           Function            Location

  68-pin SCSI drive        J1       20-pin connector - AEMI       J10
  channel 2                         (Array Enclosure
  connector -                       Management Interface)
  internal

  68-pin SCSI drive        J2       Power connector               J11
  channel 0
  connector -
  internal

  68-pin SCSI drive        J3       10-pin serial port            J12
  channel 3                         connector
  connector -
  internal

  68-pin SCSI drive        J4       18-pin connector -            J13
  channel 1                         drive channel 1 fault
  connector -                       indicator
  internal

  68-pin SCSI host         J5       18-pin connector -            J14
  channel 1/drive                   drive channel 0 fault
  channel 4 -                       indicator
  internal

  68-pin SCSI host         J7       18-pin connector -            J15
  channel 0                         drive channel 2 fault
  connector -                       indicator
  internal

  Power connector          J8       18-pin connector -            J16
                                    drive channel 3 fault
                                    indicator

  18-pin connector -       J9       10-pin connector - dual       J17
  drive channel 4                   controller
  fault indicator                   communications port

            Note: Host channel 1 and drive channels 2 and 3 are only
            available if daughterboard DBI960SX is installed.

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     Factory configured - do not alter          J6/5           N/A

     Serial port protocol is SLP1               J6/6          Open

      Serial port protocol is VT100              J6/6         Closed

     Factory configured - (serial port          J6/7         Closed
      baud rate is 19.2)

     Controller is only controller in           J6/8         Closed
      system or

      Controller is primary in two
      controller system

      Controller is secondary in two             J6/8          Open
      controller system

           HOST CHANNEL 0 SCSI ID SELECTION

  SCSI ID    JP6/1      JP6/2      JP6/3      JP6/4

     0        Open       Open      Open       Open

     1       Closed      Open      Open       Open

     2        Open      Closed     Open       Open

     3       Closed     Closed     Open       Open

     4        Open       Open     Closed      Open

     5       Closed      Open     Closed      Open

     6        Open      Closed    Closed      Open

     7       Closed     Closed    Closed      Open

     8        Open       Open      Open      Closed

     9       Closed      Open      Open      Closed

    10        Open      Closed     Open      Closed

    11       Closed     Closed     Open      Closed

    12        Open       Open     Closed     Closed

    13       Closed      Open     Closed     Closed

    14        Open      Closed    Closed     Closed

    15       Closed     Closed    Closed     Closed

           HOST CHANNEL 1 SCSI ID SELECTION

  SCSI ID     J6/9      J6/10      J6/11      J6/12

     0        Open       Open      Open       Open

     1       Closed      Open      Open       Open

     2        Open      Closed     Open       Open

     3       Closed     Closed     Open       Open

     4        Open       Open     Closed      Open

     5       Closed      Open     Closed      Open

     6        Open      Closed    Closed      Open

     7       Closed     Closed    Closed      Open

     8        Open       Open      Open      Closed

     9       Closed      Open      Open      Closed

    10        Open      Closed     Open      Closed

    11       Closed     Closed     Open      Closed

    12        Open       Open     Closed     Closed

    13       Closed      Open     Closed     Closed

    14        Open      Closed    Closed     Closed

    15       Closed     Closed    Closed     Closed

Card Type               Distribution board
Hard Drives supported   Up to 24 UltraSCSI Wide/Narrow devices
Floppy drives supported None
Data Bus                Up to two Differential Wide Ultra-SCSI channels

[Image]

Distribution Board DBX960S-6-UDR

                                CONNECTIONS

       Function           Location          Function           Location

  68-pin SCSI drive          J1       68-pin SCSI host            J7
  channel 2 connector                 channel 0 connector
  - internal                          - internal

  68-pin SCSI drive          J2       Power connector             J8
  channel 3 connector
  - internal

  68-pin SCSI drive          J3       10-pin serial port          J9
  channel 0 connector                 connector
  - internal

  68-pin SCSI drive          J4       80-pin connector -          J10
  channel 1 connector                 fault and status
  - internal                          port

  68-pin SCSI host           J5       10-pin connector -          J11
  channel 1 connector                 reserved for testing
  - internal

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     Factory configured - do not alter          J6/5           N/A

     Serial port protocol is SLP1               J6/6          Open

      Serial port protocol is VT100              J6/6         Closed

     Factory configured - (serial port          J6/7         Closed
      baud rate is 19.2)

     Controller is only controller in           J6/8         Closed
      system or

      Controller is primary in two
      controller system

      Controller is secondary in two             J6/8          Open
      controller system

           HOST CHANNEL 0 SCSI ID SELECTION

  SCSI ID    JP6/1      JP6/2      JP6/3      JP6/4

     0        Open       Open      Open       Open

     1       Closed      Open      Open       Open

     2        Open      Closed     Open       Open

     3       Closed     Closed     Open       Open

     4        Open       Open     Closed      Open

     5       Closed      Open     Closed      Open

     6        Open      Closed    Closed      Open

     7       Closed     Closed    Closed      Open

     8        Open       Open      Open      Closed

     9       Closed      Open      Open      Closed

    10        Open      Closed     Open      Closed

    11       Closed     Closed     Open      Closed

    12        Open       Open     Closed     Closed

    13       Closed      Open     Closed     Closed

    14        Open      Closed    Closed     Closed

    15       Closed     Closed    Closed     Closed

           HOST CHANNEL 1 SCSI ID SELECTION

  SCSI ID     J6/9      J6/10      J6/11      J6/12

     0        Open       Open      Open       Open

     1       Closed      Open      Open       Open

     2        Open      Closed     Open       Open

     3       Closed     Closed     Open       Open

     4        Open       Open     Closed      Open

     5       Closed      Open     Closed      Open

     6        Open      Closed    Closed      Open

     7       Closed     Closed    Closed      Open

     8        Open       Open      Open      Closed

     9       Closed      Open      Open      Closed

    10        Open      Closed     Open      Closed

    11       Closed     Closed     Open      Closed

    12        Open       Open     Closed     Closed

    13       Closed      Open     Closed     Closed

    14        Open      Closed    Closed     Closed

    15       Closed     Closed    Closed     Closed

Card Type              Daughterboard
Hard Drives supported  Up to 18 UltraSCSI Wide/Narrow devices
Floppy drives          None
supported
Data Bus               One Single-ended/Differential Wide Ultra-SCSI
                       channel

[Image]

DBI960SX Daughterboard

                                CONNECTIONS

        Function           Location          Function           Location

  Edge connector             CN1      DAC960SX controller          J2
  (drive)                             connector

  Edge connector             CN2      DAC960SX controller          J3
  (drive)                             connector

                        USER CONFIGURABLE SETTINGS

                Function                      Label           Position

     Channel 2 termination enabled           JP1/1            Closed

      Channel 2 termination disabled          JP1/1             Open

     Channel 3 termination enabled           JP1/2            Closed

      Channel 3 termination disabled          JP1/2             Open

     Channel 4 termination enabled           JP1/3            Closed

      Channel 4 termination disabled          JP1/3             Open

     Factory configured - do not alter       JP1/4             Open

     Factory configured - do not alter       JP1/5             Open

                         TERMINATION CONFIGURATION

            Notes: All termination jumpers (JP1/1-JP1/5) should remain
            closed on the daughterboard unless operating in dual host
            mode or using a differential SCSI distribution board.

            When using differential SCSI, external termination must be
            used and termination on the controller and daughterboard must
            be disabled. All termination jumpers (JP1/1-JP1/5 should be
            opened.)

            If dual host mode is not used, all JP1 termination jumpers
            should be closed.

                       MISCELLANEOUS TECHNICAL NOTES

  The DBI960SX supports three SCSI channels. Two are drive channels and
  the third can be configured as either a second host channel or a third
  drive channel.

[Image]

Battery Backup Unit

                                CONNECTIONS

        Function          Location          Function           Location

  3-pin connector -          J1        2-pin connector -          J4
  external battery                     VCC source for
  source                               external LED

  12-pin connector to        J3
  controller board

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     Backup power source is internal             J2            INT
      (on-board batteries)

      Backup power source is external             J2            EXT
      (off-board batteries)

  Note: J2 is located on the reverse side of the Battery Backup card.

                         REFRESH TIMING SELECTION

         Timing                     J5                       J6

      Self-refresh                 N/A                      SELF

     Normal refresh                NORM                     C/R

    Extended refresh               LPWR                     C/R

  (for low power memory

