RELIALOGIC CORPORATION PRIVATE, LTD.
====================================

   XIRLINK, INC.

   XL-525/XL-521

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 32-bit, VL-bus                         |
   |-------------------+----------------------------------------|
   | Size:             | Three/quarter-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/20714-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                    Function                     | Location |
   |-------------------------------------------------+----------|
   | 50-pin SCSI connector - internal                |    J1    |
   |-------------------------------------------------+----------|
   | 34-pin control cabled connector - floppy drive  |    J2    |
   | 1                                               |          |
   |-------------------------------------------------+----------|
   | 34-pin control cabled connector - floppy drive  |    J3    |
   | 0                                               |          |
   |-------------------------------------------------+----------|
   | 10-pin serial port 1                            |    J4    |
   |-------------------------------------------------+----------|
   | 10-pin serial port 2                            |    J5    |
   |-------------------------------------------------+----------|
   | 26-pin parallel port connector                  |    J6    |
   |-------------------------------------------------+----------|
   | Game port                                       |    J7    |
   |-------------------------------------------------+----------|
   | 4-pin connector - drive active LED              |   JP19   |
   |-------------------------------------------------+----------|
   | 50-pin SCSI connector - external                |    P1    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |   | Active termination enabled     |   JP2    |    Open    |
   |---+--------------------------------+----------+------------|
   |   | Active termination disabled    |   JP2    |   Closed   |
   |---+--------------------------------+----------+------------|
   |>> | Floppy drive enabled           |   JP6    | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive disabled          |   JP6    | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Game port enabled              |   JP13   |   Closed   |
   |---+--------------------------------+----------+------------|
   |   | Game port disabled             |   JP13   |    Open    |
   |---+--------------------------------+----------+------------|
   |>> | Parallel port IRQ7 selected    |   JP14   | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Parallel port IRQ5 selected    |   JP14   | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |------------------------------------------------------------|
   | Note:The location of JP2 is not specified in               |
   | manufacturer's documentation.                              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                MEMORY AND I/O ADDRESS - JP3                |
   |------------------------------------------------------------|
   |   Memory    | I/O Address | Jumper A | Jumper B | Jumper C |
   |   Address   |             |          |          |          |
   |-------------+-------------+----------+----------+----------|
   |  Disabled   |    140h     |  Closed  |  Closed  |  Closed  |
   |-------------+-------------+----------+----------+----------|
   |  Disabled   |    150h     |   Open   |  Closed  |  Closed  |
   |-------------+-------------+----------+----------+----------|
   |    C800h    |    160h     |  Closed  |   Open   |  Closed  |
   |-------------+-------------+----------+----------+----------|
   |    CC00h    |    170h     |   Open   |   Open   |  Closed  |
   |-------------+-------------+----------+----------+----------|
   |    D000h    |    140h     |  Closed  |  Closed  |   Open   |
   |-------------+-------------+----------+----------+----------|
   |    D400h    |    150h     |   Open   |  Closed  |   Open   |
   |-------------+-------------+----------+----------+----------|
   |    D800h    |    160h     |   Open   |   Open   |  Closed  |
   |-------------+-------------+----------+----------+----------|
   |    DC00h    |    170h     |   Open   |   Open   |   Open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   INTERRUPT SELECT - JP5                   |
   |------------------------------------------------------------|
   |    IRQ    | Jumper  | Jumper  | Jumper  | Jumper  | Jumper |
   |           |    A    |    B    |    C    |    D    |   E    |
   |-----------+---------+---------+---------+---------+--------|
   |>> | IRQ11 |  Open   |  Open   |  Open   | Closed  |  Open  |
   |---+-------+---------+---------+---------+---------+--------|
   |   | IRQ10 |  Open   |  Open   |  Open   |  Open   | Closed |
   |---+-------+---------+---------+---------+---------+--------|
   |   | IRQ12 |  Open   |  Open   | Closed  |  Open   |  Open  |
   |---+-------+---------+---------+---------+---------+--------|
   |   | IRQ14 | Closed  |  Open   |  Open   |  Open   |  Open  |
   |---+-------+---------+---------+---------+---------+--------|
   |   | IRQ15 |  Open   | Closed  |  Open   |  Open   |  Open  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 1 CONFIGURATION - JP16             |
   |------------------------------------------------------------|
   |   COM/Address    |      Jumper A      |      Jumper B      |
   |------------------+--------------------+--------------------|
   |>> |  COM1/3F8h   | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |  COM2/2F8h   | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |  COM3/338h   | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 2 CONFIGURATION - JP17             |
   |------------------------------------------------------------|
   |   COM/Address    |      Jumper A      |      Jumper B      |
   |------------------+--------------------+--------------------|
   |>> |  COM2/2F8h   | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |  COM1/3F8h   | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |  COM4/238h   | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          SERIAL PORTS 1 &AMP; 2 INTERRUPT SELECT           |
   |------------------------------------------------------------|
   |     Port 1      |    Port 2    |           JP15            |
   |-----------------+--------------+---------------------------|
   |>> |    IRQ4     |     IRQ3     | Pins 1 & 2, 3 & 4 closed  |
   |---+-------------+--------------+---------------------------|
   |   |    IRQ3     |     IRQ4     | Pins 1 & 3, 2 & 4 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT CONFIGURATION - JP18             |
   |------------------------------------------------------------|
   |     Address      |      Jumper A      |      Jumper B      |
   |------------------+--------------------+--------------------|
   |       278h       | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |       378h       | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |       3BCh       | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |     Disabled     | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+