UNIDENTIFIED
============

   PM-540

   Card Type     Multi I/O card                                   
   Hard Drives   Two IDE drives                                   
   supported     
   Floppy drives Two 360KB, 720KB, 1.2MB, or 1.44MB drives        
   supported     
   I/O options   Hard drive connector, floppy drive connector,    
                 serial ports (2), parallel port                  
   Data Bus      16-bit ISA                                       
   Card Size     Half-length, full-height card                    

<gopher://bitreich.org/I/th99/c/U-Z/21712-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Function      | Location |     Function     | Location |
   |-------------------+----------+------------------+----------|
   | 4-pin connector - |    J1    | 10-pin serial    |    J4    |
   | drive active LED  |          | port 2 -         |          |
   |                   |          | internal         |          |
   |-------------------+----------+------------------+----------|
   | 40-pin primary    |    J2    | 9-pin serial     |    J5    |
   | IDE(AT) connector |          | port 1 -         |          |
   |                   |          | external         |          |
   |-------------------+----------+------------------+----------|
   | 34-pin cable      |    J3    | 25-pin parallel  |    J6    |
   | connector -       |          | port - external  |          |
   | floppy drive      |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                I/O ADDRESS ENABLE SELECTION                |
   |------------------------------------------------------------|
   |      I/O address       |       JP1       |       JP2       |
   |------------------------+-----------------+-----------------|
   |>> |      Enabled       |     Closed      |     Closed      |
   |---+--------------------+-----------------+-----------------|
   |   |      Disabled      |      Open       |      Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PORT ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |        Setting         |      JP3/E      |      JP3/F      |
   |------------------------+-----------------+-----------------|
   |>> |    LPT1 (378h)     |     Closed      |      Open       |
   |---+--------------------+-----------------+-----------------|
   |   |    LPT2 (278h)     |      Open       |     Closed      |
   |---+--------------------+-----------------+-----------------|
   |   |      Disabled      |      Open       |      Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 1 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |        Setting         |      JP3/A      |      JP3/C      |
   |------------------------+-----------------+-----------------|
   |>> |    COM1 (3F8h)     |     Closed      |      Open       |
   |---+--------------------+-----------------+-----------------|
   |   |    COM3 (3E8h)     |      Open       |     Closed      |
   |---+--------------------+-----------------+-----------------|
   |   |    COM4 (2E8h)     |     Closed      |     Closed      |
   |---+--------------------+-----------------+-----------------|
   |   |      Disabled      |      Open       |      Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 2 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |        Setting         |      JP3/B      |      JP3/D      |
   |------------------------+-----------------+-----------------|
   |>> |    COM2 (2F8h)     |     Closed      |      Open       |
   |---+--------------------+-----------------+-----------------|
   |   |    COM3 (3E8h)     |     Closed      |     Closed      |
   |---+--------------------+-----------------+-----------------|
   |   |    COM4 (2E8h)     |      Open       |     Closed      |
   |---+--------------------+-----------------+-----------------|
   |   |      Disabled      |      Open       |      Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 1 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |      IRQ       |    JP4/F     |    JP4/G     |    JP4/H    |
   |----------------+--------------+--------------+-------------|
   |>> |    IRQ4    |     Open     |     Open     |   Closed    |
   |---+------------+--------------+--------------+-------------|
   |   |    IRQ5    |     Open     |    Closed    |    Open     |
   |---+------------+--------------+--------------+-------------|
   |   |    IRQ9    |    Closed    |     Open     |    Open     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 2 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |      IRQ       |    JP4/C     |    JP4/D     |    JP4/E    |
   |----------------+--------------+--------------+-------------|
   |>> |    IRQ3    |     Open     |     Open     |   Closed    |
   |---+------------+--------------+--------------+-------------|
   |   |    IRQ5    |    Closed    |     Open     |    Open     |
   |---+------------+--------------+--------------+-------------|
   |   |    IRQ9    |     Open     |    Closed    |    Open     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |           IRQ           |      JP4/A      |     JP4/B      |
   |-------------------------+-----------------+----------------|
   |    |        IRQ5        |      Open       |     Closed     |
   |----+--------------------+-----------------+----------------|
   |>>  |        IRQ7        |     Closed      |      Open      |
   |----+--------------------+-----------------+----------------|
   |    |      Disabled      |      Open       |      Open      |
   +------------------------------------------------------------+