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       # UNIDENTIFIED
       
          SAB-757
       
          +------------------------------------------------------------+
          |------------------------------------------------------------|
          | Data bus:         | 16-bit, ISA                            |
          |-------------------+----------------------------------------|
          | Size:             | Half-length, full-height card          |
          |-------------------+----------------------------------------|
          | Hard drive        | Two IDE (AT) interface drives          |
          | supported:        |                                        |
          |-------------------+----------------------------------------|
          | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
          | supported:        | drives                                 |
          +------------------------------------------------------------+
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |                   Function                    |  Location  |
          |-----------------------------------------------+------------|
          | 25-pin parallel port                          |    CN1     |
          |-----------------------------------------------+------------|
          | 9-pin serial port 1 - external                |    CN2     |
          |-----------------------------------------------+------------|
          | 10-pin serial port 2 - internal               |    CN3     |
          |-----------------------------------------------+------------|
          | Game port                                     |    CN4     |
          |-----------------------------------------------+------------|
          | 34-pin control cable connector - floppy drive |    CN5     |
          |-----------------------------------------------+------------|
          | 40-pin IDE (AT) Interface connector           |    CN6     |
          |-----------------------------------------------+------------|
          | 2-pin connector - drive active LED            |    JP5     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |         Function          |   Location   |     Setting     |
          |---------------------------+--------------+-----------------|
          | » | IDE port enabled      | JP1/jumper A |   Pins 2 & 3    |
          |   |                       |              |     closed      |
          |---+-----------------------+--------------+-----------------|
          |   | IDE port disabled     | JP1/jumper A |   Pins 1 & 2    |
          |   |                       |              |     closed      |
          |---+-----------------------+--------------+-----------------|
          | » | Floppy drive enabled  | JP1/jumper B |   Pins 2 & 3    |
          |   |                       |              |     closed      |
          |---+-----------------------+--------------+-----------------|
          |   | Floppy drive disabled | JP1/jumper B |   Pins 1 & 2    |
          |   |                       |              |     closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                SERIAL PORT 1 CONFIGURATION                 |
          |------------------------------------------------------------|
          |   COM/Address    |    JP1/Jumper C    |    JP1/Jumper D    |
          |------------------+--------------------+--------------------|
          | » |  COM1/3F8h   | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   |  COM3/3E8h   | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |  COM4/2E8h   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |   Disabled   | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                SERIAL PORT 2 CONFIGURATION                 |
          |------------------------------------------------------------|
          |   COM/Address    |    JP1/Jumper E    |    JP1/Jumper F    |
          |------------------+--------------------+--------------------|
          | » |  COM2/2F8h   | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   |  COM3/3E8h   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |  COM4/2E8h   | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |   Disabled   | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                PARALLEL PORT CONFIGURATION                 |
          |------------------------------------------------------------|
          |   LPT/Address    |    JP1/Jumper G    |    JP1/Jumper H    |
          |------------------+--------------------+--------------------|
          | » |  LPT1/3BCh   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |  LPT2/378h   | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |  LPT3/278h   | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   |   Disabled   | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               PARALLEL PORT INTERRUPT SELECT               |
          |------------------------------------------------------------|
          |            IRQ             |              JP1              |
          |----------------------------+-------------------------------|
          | »  |         IRQ7          |       Pins 2 & 3 closed       |
          |----+-----------------------+-------------------------------|
          |    |         IRQ5          |       Pins 1 & 2 closed       |
          +------------------------------------------------------------+