RANCHO TECHNOLOGY, INC.
=======================

   RT1600

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

<gopher://bitreich.org/I/th99/c/P-R/20771-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                   |  Location   |
   |----------------------------------------------+-------------|
   | 34-pin control cable connector - floppy      |     J2      |
   | drive 0                                      |             |
   |----------------------------------------------+-------------|
   | 34-pin control cable connector - floppy      |     J3      |
   | drive 1                                      |             |
   |----------------------------------------------+-------------|
   | 50-pin SCSI connector-internal               |     J4      |
   |----------------------------------------------+-------------|
   | 50-pin SCSI connector-external               |     P1      |
   |----------------------------------------------+-------------|
   | 2-pin connector - chassis ground             |     J7      |
   |----------------------------------------------+-------------|
   | 2-pin connector - drive active LED           | J5/jumper O |
   |----------------------------------------------+-------------|
   | 2-pin connector - drive active LED           | J5/jumper P |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Location  | Setting |
   |--------------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     B     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     E     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     G     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     H     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     I     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     J     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     K     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     E     |         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Location  | Setting |
   |--------------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     O     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J1/jumper |  open   |
   |   | alter                            |     Q     |         |
   |---+----------------------------------+-----------+---------|
   |   | BIOS installed                   | J5/jumper | closed  |
   |   |                                  |     A     |         |
   |---+----------------------------------+-----------+---------|
   |   | BIOS not installed               | J5/jumper |  open   |
   |   |                                  |     A     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Floppy drive enabled             | J5/jumper | closed  |
   |   |                                  |     B     |         |
   |---+----------------------------------+-----------+---------|
   |   | Floppy drive disabled            | J5/jumper |  open   |
   |   |                                  |     B     |         |
   |---+----------------------------------+-----------+---------|
   |>> | ATA disabled                     | J5/jumper | closed  |
   |   |                                  |     C     |         |
   |---+----------------------------------+-----------+---------|
   |   | ATA enabled                      | J5/jumper |  open   |
   |   |                                  |     C     |         |
   |---+----------------------------------+-----------+---------|
   |>> | I/O address = 330h               | J5/jumper |  open   |
   |   |                                  |     D     |         |
   |---+----------------------------------+-----------+---------|
   |   | I/O address = 230h               | J5/jumper | closed  |
   |   |                                  |     D     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J5/jumper | closed  |
   |   | alter                            |     G     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J5/jumper | closed  |
   |   | alter                            |     H     |         |
   |---+----------------------------------+-----------+---------|
   |>> | SCSI active termination enabled  | J5/jumper | closed  |
   |   |                                  |     I     |         |
   |---+----------------------------------+-----------+---------|
   |   | SCSI active termination disabled | J5/jumper |  open   |
   |   |                                  |     I     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Factory configured - do not      | J5/jumper |  open   |
   |   | alter                            |     J     |         |
   |---+----------------------------------+-----------+---------|
   |>> | PIO data transfer mode enabled   | J5/jumper | closed  |
   |   |                                  |     K     |         |
   |---+----------------------------------+-----------+---------|
   |   | DMA data transfer mode enabled   | J5/jumper |  open   |
   |   |                                  |     K     |         |
   |---+----------------------------------+-----------+---------|
   |   | Zero wait state enabled          | J5/jumper | closed  |
   |   |                                  |     Q     |         |
   |---+----------------------------------+-----------+---------|
   |   | Zero wait state disabled         | J5/jumper |  open   |
   |   |                                  |     Q     |         |
   |---+----------------------------------+-----------+---------|
   |>> | Remote terminator power disabled |    J6     |  open   |
   |---+----------------------------------+-----------+---------|
   |   | Remote terminator power enabled  |    J6     | closed  |
   |---+----------------------------------+-----------+---------|
   |>> | Current back-flow diode CR1      |    J8     |  open   |
   |   | enabled                          |           |         |
   |---+----------------------------------+-----------+---------|
   |   | Current back-flow diode CR1      |    J8     | closed  |
   |   | disabled                         |           |         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        DMA CHANNEL                         |
   |------------------------------------------------------------|
   |   DMA    |J1/jumper|J1/jumper|J1/jumper|J1/jumper|J5/jumper|
   |          |    A    |    C    |    D    |    F    |    L    |
   |----------+---------+---------+---------+---------+---------|
   |>>|  DMA5  | closed  |  open   | closed  |  open   | closed  |
   |-+--------+---------+---------+---------+---------+---------|
   | |  DMA7  |  open   | closed  |  open   | closed  |  open   |
   |-+--------+---------+---------+---------+---------+---------|
   | |Disabled|  open   |  open   |  open   |  open   |   n/a   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     INTERRUPT REQUEST                      |
   |------------------------------------------------------------|
   |   IRQ   |  J1/L  |  J1/M  |  J1/N  | J1/P  | J5/M  | J5/N  |
   |---------+--------+--------+--------+-------+-------+-------|
   |>>| IRQ10 | closed |  open  |  open  | open  | open  | open  |
   |-+-------+--------+--------+--------+-------+-------+-------|
   | | IRQ11 |  open  | closed |  open  | open  |closed |closed |
   |-+-------+--------+--------+--------+-------+-------+-------|
   | | IRQ12 |  open  |  open  | closed | open  | open  |closed |
   |-+-------+--------+--------+--------+-------+-------+-------|
   | | IRQ15 |  open  |  open  |  open  |closed |closed | open  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    MEMORY ADDRESS - J5                     |
   |------------------------------------------------------------|
   |      Address      |      Jumper E      |     Jumper F      |
   |-------------------+--------------------+-------------------|
   |       C800h       |        open        |       open        |
   |-------------------+--------------------+-------------------|
   |       D800h       |       closed       |       open        |
   +------------------------------------------------------------+