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

   RT1000C-6/RT1000C-8

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 8-bit, ISA                             |
   |-------------------+----------------------------------------|
   | Size:             | Half-length, full-height card          |
   |-------------------+----------------------------------------|
   | Hard drive        | Up to seven SCSI devices               |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   | Floppy drives     | Two 360KB, 720KB, 1.2MB or 1.44MB      |
   | supported:        | drives                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/P-R/20587-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                 |    Location     |
   |------------------------------------------+-----------------|
   | 50-pin SCSI connector - internal         |       J15       |
   |------------------------------------------+-----------------|
   | 50-pin SCSI connector - external         |       J18       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |   | I/O mapped data transfer       |    J8    |   closed   |
   |   | enabled (BIOS-installed        |          |            |
   |   | version)                       |          |            |
   |---+--------------------------------+----------+------------|
   |   | Memory mapped data transfer    |    J8    |    open    |
   |   | enabled (BIOS not installed)   |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Other drive is Drive A:        |    J9    |    open    |
   |---+--------------------------------+----------+------------|
   |   | Floptical drive is Drive A:    |    J9    |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Factory configured - do not    |   J10    |    open    |
   |   | alter                          |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Zero Wait State disabled       |   J14    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Zero Wait State enabled        |   J14    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Terminator power disabled      |   J16    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Terminator power enabled       |   J16    | pins 2 & 3 |
   |   |                                |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            MEMORY ADDRESS (MEMORY-MAPPED MODE)             |
   |------------------------------------------------------------|
   |      Base Address      |    J1     |    J2     |    J3     |
   |------------------------+-----------+-----------+-----------|
   |>>      |     DC00h     |  closed   |   open    |   open    |
   |--------+---------------+-----------+-----------+-----------|
   |        |     C800h     |   open    |   open    |  closed   |
   |--------+---------------+-----------+-----------+-----------|
   |        |     CC00h     |  closed   |   open    |  closed   |
   |--------+---------------+-----------+-----------+-----------|
   |        |     D000h     |   open    |  closed   |  closed   |
   |--------+---------------+-----------+-----------+-----------|
   |        |     D400h     |  closed   |  closed   |  closed   |
   |--------+---------------+-----------+-----------+-----------|
   |        |     D800h     |   open    |   open    |   open    |
   |--------+---------------+-----------+-----------+-----------|
   |        |     E000h     |   open    |  closed   |   open    |
   |--------+---------------+-----------+-----------+-----------|
   |        |     E400h     |  closed   |  closed   |   open    |
   |------------------------------------------------------------|
   | Note:This table applies to versions that do not have a     |
   | BIOS installed (J8 is open).                               |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               I/O ADDRESS (I/O MAPPED MODE)                |
   |------------------------------------------------------------|
   |  Base Address  |      J1      |      J2      |     J3      |
   |----------------+--------------+--------------+-------------|
   |>> |    348h    |    closed    |     open     |    open     |
   |---+------------+--------------+--------------+-------------|
   |   |    280h    |    closed    |    closed    |   closed    |
   |---+------------+--------------+--------------+-------------|
   |   |    290h    |     open     |    closed    |   closed    |
   |---+------------+--------------+--------------+-------------|
   |   |    300h    |    closed    |     open     |   closed    |
   |---+------------+--------------+--------------+-------------|
   |   |    310h    |     open     |     open     |   closed    |
   |---+------------+--------------+--------------+-------------|
   |   |    330h    |    closed    |    closed    |    open     |
   |---+------------+--------------+--------------+-------------|
   |   |    340h    |     open     |    closed    |    open     |
   |---+------------+--------------+--------------+-------------|
   |   |    350h    |     open     |     open     |    open     |
   |------------------------------------------------------------|
   | Note:This table applies to versions that have a BIOS       |
   | installed (J8 is closed).                                  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      INTERRUPT SELECT                      |
   |------------------------------------------------------------|
   |   IRQ    |     J4     |     J5     |    J6     |    J7     |
   |----------+------------+------------+-----------+-----------|
   |   IRQ3   |    open    |    open    |   open    |  closed   |
   |----------+------------+------------+-----------+-----------|
   |   IRQ4   |    open    |    open    |  closed   |   open    |
   |----------+------------+------------+-----------+-----------|
   |   IRQ5   |    open    |   closed   |   open    |   open    |
   |----------+------------+------------+-----------+-----------|
   |   IRQ7   |   closed   |    open    |   open    |   open    |
   +------------------------------------------------------------+