BUSLOGIC, INC.

BT-757D, BT-757S

 Data bus:                  32-bit, EISA

 Size:                      Full-length, full-height card

 Hard drive supported:      Up to seven SCSI devices

 Floppy drives supported:   Two 360KB, 720KB, 1.2MB, 1.44MB, or 2.88MB
                            drives

[Image]

                              CONNECTIONS

                    Function                           Location

  4-pin connector - drive active LED                      J1

  34-pin control cable connector - floppy drive           J2

  50-pin SCSI connector - internal                        J3

  68-pin SCSI connector - internal                        J4

  68-pin SCSI connector - external                        J5

                        USER CONFIGURABLE SETTINGS

                Function
                                             Location
                                                               Setting

  »
      Termination power to 50-pin
      connector enabled
                                                W1
                                                               closed


      Termination power to 50-pin
      connector disabled
                                                W1
                                                                open

  »
      Termination power to internal
      68-pin conn. enabled
                                                W2
                                                               closed


      Termination power to internal
      68-pin conn. disabled
                                                W2
                                                                open

  »
      Termination power to external
      68-pin conn. enabled
                                                W3
                                                               closed


      Termination power to external
      68-pin conn. disabled
                                                W3
                                                                open

  »
      Floppy drive enabled
                                                W8
                                                               closed


      Floppy drive disabled
                                                W8
                                                                open

                                STATUS LED

      LED                  Status                      Function

                  on briefly after start-up      Self-test successful

      LED1                blinking                   SCSI active

                  3 blinks, pause, 3 blinks   Searching for SCSI device
                          sequence

                       MISCELLANEOUS TECHNICAL NOTES

    BT-757D is a differential SCSI controller. Terminators RP2, 4, 6, 8,
   10, and 12 contain 150ohm resistors. Terminators RP3, 5, 7, 9, 11, and
                       13 contain 330ohm resistors.

     BT-757S is shipped with three resistor packs on-board, at the same
     locations as RP6, 7, and 13. Each pack contains 110ohm resistors.