ATTO TECHNOLOGY, INC.
=====================

   SILICONEXPRESS II

    Data bus:                 32-bit, NuBus                       

    Size:                     Full-length, full-height card       

    Hard drive supported:     Up to seven SCSI devices            

    Floppy drives supported:  None                                

<gopher://bitreich.org/I/th99/c/A-B/20637-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                 |    Location     |
   |------------------------------------------+-----------------|
   | 25-pin SCSI-2 connector - external       |       CN1       |
   |------------------------------------------+-----------------|
   | 50-pin SCSI-2 connector - internal       |       J1        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        SCSI BUS ID                         |
   |------------------------------------------------------------|
   |     ID     |  J2/jumper 1  |  J2/Jumper 2  |  J2/Jumper 3  |
   |------------+---------------+---------------+---------------|
   |>> |   7    |    closed     |    closed     |    closed     |
   |---+--------+---------------+---------------+---------------|
   |>> |   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      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Function             |   Location   |  Setting  |
   |---------------------------------+--------------+-----------|
   |>> | TRMPWR supplied by          |      F       | installed |
   |   | SiliconExpress II to SCSI   |              |           |
   |   | bus                         |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | TRMPWR disabled             |      F       |  removed  |
   |---+-----------------------------+--------------+-----------|
   |>> | Factory configured - do not | J2/jumper 4  |   open    |
   |   | alter                       |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | Factory configured - do not | J2/jumper 5  |   open    |
   |   | alter                       |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | Factory configured - do not | J2/jumper 6  |   open    |
   |   | alter                       |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | Factory configured - do not | J2/jumper 7  |   open    |
   |   | alter                       |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | Factory configured - do not | J2/jumper 8  |    N/A    |
   |   | alter                       |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | Factory configured - do not | J2/jumper 9  |    N/A    |
   |   | alter                       |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | Factory configured - do not | J2/jumper 10 |    N/A    |
   |   | alter                       |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | Only external SCSI drive(s) |  RN4 & RN5   | installed |
   |   | attached                    |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | Only internal SCSI drive(s) |  RN4 & RN5   | installed |
   |   | attached                    |              |           |
   |---+-----------------------------+--------------+-----------|
   |>> | External & internal SCSI    |  RN4 & RN5   |  removed  |
   |   | drive(s) attached           |              |           |
   +------------------------------------------------------------+