PERCEPTIVE SOLUTIONS, INC.
==========================

   PATHFINDER PSI-2100

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 16-bit ISA                             |
   |-------------------+----------------------------------------|
   | Size:             | Half-length, full-height card          |
   |-------------------+----------------------------------------|
   | Hard drive        | Up to seven Fast SCSI-2 devices        |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
   | supported:        | drives                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/P-R/20976-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                 |    Location     |
   |------------------------------------------+-----------------|
   | 50-pin SCSI connector - external         |       P1        |
   |------------------------------------------+-----------------|
   | 34-pin cable connector - floppy drive    |       P2        |
   |------------------------------------------+-----------------|
   | 50-pin SCSI connector - internal         |       P3        |
   |------------------------------------------+-----------------|
   | 4-pin connector - drive active LED       |       P4        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function               |  Location   | Setting |
   |------------------------------------+-------------+---------|
   |>> | Floppy drive interface is      |     J6      |  Open   |
   |   | primary                        |             |         |
   |---+--------------------------------+-------------+---------|
   |   | Floppy drive interface is      |     J6      | Closed  |
   |   | secondary                      |             |         |
   |---+--------------------------------+-------------+---------|
   |>> | Factory configured - do not    | J7/pins 5 & |   N/A   |
   |   | alter                          |      6      |         |
   |---+--------------------------------+-------------+---------|
   |>> | Factory configured - do not    | J7/pins 7 & |   N/A   |
   |   | alter                          |      8      |         |
   |---+--------------------------------+-------------+---------|
   |>> | Hard drive format GBP            | J8/pins 1 & | Closed  |
   |   |                                |      2      |         |
   |---+--------------------------------+-------------+---------|
   |   | Hard drive format > 1 GB (255  | J8/pins 1 & |  Open   |
   |   | heads x 63 sectors)            |      2      |         |
   |---+--------------------------------+-------------+---------|
   |>> | Factory configured - do not    | J8/pins 3 & |   N/A   |
   |   | alter                          |      4      |         |
   |---+--------------------------------+-------------+---------|
   |>> | Synchronous Negotiation        | J8/pins 5 & |  Open   |
   |   | enabled                        |      6      |         |
   |---+--------------------------------+-------------+---------|
   |   | Synchronous Negotiation        | J8/pins 5 & | Closed  |
   |   | disabled                       |      6      |         |
   |---+--------------------------------+-------------+---------|
   |>> | Factory configured - do not    |     J15     |   N/A   |
   |   | alter                          |             |         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   BIOS ADDRESS SELECTION                   |
   |------------------------------------------------------------|
   |      Address      |  J7/pins 13 & 14   |  J7/pins 15 & 16  |
   |-------------------+--------------------+-------------------|
   |   | C8000-CFFFFh  |        Open        |      Closed       |
   |---+---------------+--------------------+-------------------|
   |   | D0000-D7FFFh  |       Closed       |       Open        |
   |---+---------------+--------------------+-------------------|
   |>> | D8000-DFFFFh  |        Open        |       Open        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |  INT   |       J4        | J8/pins 7 & 8 |       J11       |
   |--------+-----------------+---------------+-----------------|
   |   | 10 |   Pins 1 & 2    |     Open      |   Pins 1 & 2    |
   |   |    |     closed      |               |     closed      |
   |---+----+-----------------+---------------+-----------------|
   |>> | 11 |   Pins 1 & 2    |    Closed     |   Pins 3 & 4    |
   |   |    |     closed      |               |     closed      |
   |---+----+-----------------+---------------+-----------------|
   |   | 12 |   Pins 2 & 3    |    Closed     |   Pins 5 & 6    |
   |   |    |     closed      |               |     closed      |
   |---+----+-----------------+---------------+-----------------|
   |   | 14 |   Pins 2 & 3    |     Open      |   Pins 7 & 8    |
   |   |    |     closed      |               |     closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                       DMA SELECTION                        |
   |------------------------------------------------------------|
   | Channel |       J2       |       J5       |      J13       |
   |---------+----------------+----------------+----------------|
   |>>  | 6  |   Pins 1 & 2   |   Pins 1 & 2   |   Pins 1 & 2   |
   |    |    |     closed     |     closed     |     closed     |
   |----+----+----------------+----------------+----------------|
   |    | 7  |   Pins 2 & 3   |   Pins 2 & 3   |   Pins 2 & 3   |
   |    |    |     closed     |     closed     |     closed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                DMA TRANSFER RATE SELECTION                 |
   |------------------------------------------------------------|
   |    Rate     | J7/pins 1 | J7/pins 3 | J7/pins | J7/pins 11 |
   |             |    & 2    |    & 4    | 9 & 10  |    & 12    |
   |-------------+-----------+-----------+---------+------------|
   |>> |   5.0   |  Closed   |   Open    | Closed  |    Open    |
   |   | MB/sec  |           |           |         |            |
   |---+---------+-----------+-----------+---------+------------|
   |   |  5.56   |   Open    |  Closed   | Closed  |    Open    |
   |   | MB/sec  |           |           |         |            |
   |---+---------+-----------+-----------+---------+------------|
   |   |  6.25   |  Closed   |  Closed   | Closed  |    Open    |
   |   | MB/sec  |           |           |         |            |
   |---+---------+-----------+-----------+---------+------------|
   |   |  7.14   |   Open    |  Closed   |  Open   |   Closed   |
   |   | MB/sec  |           |           |         |            |
   +------------------------------------------------------------+