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

   EXPRESSPCI-PSC

   Card Type               Hard drive controller card             
   Processor               RISC                                   
   Hard Drives supported   Up to 15 Ultra/Wide SCSI devices       
   Floppy drives supported None                                   
   Data Bus                32-bit PCI                             
   Card Size               Half-length, full-height card          
   RAID levels supported   0                                      

<gopher://bitreich.org/I/th99/c/A-B/21495-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |  Function   | Location |        Function        | Location |
   |-------------+----------+------------------------+----------|
   | 50-pin SCSI |    J1    | 4-pin connector -      |    J3    |
   | connector - |          | drive active LED       |          |
   | internal    |          |                        |          |
   |-------------+----------+------------------------+----------|
   | 68-pin SCSI |    J2    | 68-pin SCSI connector  |    J4    |
   | connector - |          | - internal             |          |
   | external    |          |                        |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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-PSC 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                |
   |------------------------------------------------------------|
   |      Only two SCSI connectors (J1&J2, J2&J3 or J3&J1) can  |
   |      be used simultaneously. All three SCSI connectors     |
   |      cannot be used at one time.                           |
   |                                                            |
   |      Termination must be manually configured under two     |
   |      conditions. The ExpressPCI-PSC 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-PSC 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.                              |
   +------------------------------------------------------------+