ATTO TECHNOLOGY, INC.

EXPRESSPCI-DC

Card Type               Hard drive controller card
Processor               RISC
Hard Drives supported   Up to 30 Ultra/Wide SCSI devices
Floppy drives supported None
Data Bus                32-bit PCI
Card Size               Half-length, full-height card
RAID levels supported   0

[Image]

                                CONNECTIONS

       Function           Location           Function          Location

  68-pin SCSI channel        J1         68-pin SCSI               J4
  0 connector -                         channel 1
  external                              connector -
                                        internal

  68-pin SCSI channel        J2         4-pin connector -        JP1
  1 connector -                         drive active LED
  external

  68-pin SCSI channel        J3
  0 connector -
  internal

                             TERMINATION LEDS

     LED           Color           Status              Condition

    LED1        Unidentified         On          Low order byte on SCSI
                                                   channel terminated

    LED1        Unidentified         Off           Low order byte not
                                                       terminated

    LED2        Unidentified         On          High-order byte on SCSI
                                                   channel terminated

    LED2        Unidentified         Off           High order byte not
                                                       terminated

            Note: The ExpressPCI-DC automatically configures its own
            termination and provides feed back via two LEDs located on
            the top edge of the card. Exceptions to automatic
            configuration are listed in the Miscellaneous Technical Notes
            table.

                       MISCELLANEOUS TECHNICAL NOTES

            Termination must be manually configured under two conditions.
            The ExpressPCI-DC will not automatically configure
            termination when narrow (8-bit) devices are attached to the
            internal connector and wide (16-bit) devices are attached to
            the external connector, or vice-versa. In these cases, the
            on-board terminators must be set to terminate high-order byte
            (the ExpressPCI-DC must lies at the end of the high-order
            bus). Refer to the ExpressPro-Tools Bus Configuration
            Utilities section in the ExpressPro-Tools User’s Manual for
            appropriate settings. Active termination is strongly
            recommended.