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       # ZOBEX
       
          ZOBEX 4HDC-62W
       
          Data Bus                8-bit ISA                              
          Card Size               Three-quarter length, full-height card 
          Hard Drives supported   Four ST-506/412(MFM) drives            
          Floppy drives supported None                                   
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |     Function      | Location |     Function     | Location |
          |-------------------+----------+------------------+----------|
          | 34-pin control    |    J1    | 20-pin data      |    J4    |
          | cable connector   |          | cable connector  |          |
          |-------------------+----------+------------------+----------|
          | 20-pin data cable |    J2    | 20-pin data      |    J5    |
          | connector - drive |          | cable connector  |          |
          | 0                 |          |                  |          |
          |-------------------+----------+------------------+----------|
          | 20-pin data cable |    J3    |                  |          |
          | connector - drive |          |                  |          |
          | 1                 |          |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |          Function           |     Label     |   Position   |
          |-----------------------------+---------------+--------------|
          | » | IRQ 5 enable            |     JP4/1     |    Closed    |
          |---+-------------------------+---------------+--------------|
          |   | IRQ 5 disable           |     JP4/1     |     Open     |
          |---+-------------------------+---------------+--------------|
          | » | Factory configured - do |      P2       |     Open     |
          |   | not alter               |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Write Protect drive 0   | P3/pins 1 & 2 |     Open     |
          |   | disabled                |               |              |
          |---+-------------------------+---------------+--------------|
          |   | Write Protect drive 0   | P3/pins 1 & 2 |    Closed    |
          |   | enabled                 |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Write Protect drive 1   | P3/pins 3 & 4 |     Open     |
          |   | disabled                |               |              |
          |---+-------------------------+---------------+--------------|
          |   | Write Protect drive 1   | P3/pins 3 & 4 |    Closed    |
          |   | enabled                 |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Write Protect drive 2   | P3/pins 5 & 6 |     Open     |
          |   | disabled                |               |              |
          |---+-------------------------+---------------+--------------|
          |   | Write Protect drive 2   | P3/pins 5 & 6 |    Closed    |
          |   | enabled                 |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Write Protect drive 3   | P3/pins 7 & 8 |     Open     |
          |   | disabled                |               |              |
          |---+-------------------------+---------------+--------------|
          |   | Write Protect drive 3   | P3/pins 7 & 8 |    Closed    |
          |   | enabled                 |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Factory configured - do |     SW1/1     |     Off      |
          |   | not alter (Ext. Stat.   |               |              |
          |   | Reg. Bit 4)             |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Factory configured - do |     SW1/2     |     Off      |
          |   | not alter (Ext. Stat.   |               |              |
          |   | Reg. Bit 5)             |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Factory configured - do |     SW1/3     |     Off      |
          |   | not alter (Ext. Stat.   |               |              |
          |   | Reg. Bit 6)             |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Factory configured - do |     SW1/4     |     Off      |
          |   | not alter (Ext. Stat.   |               |              |
          |   | Reg. Bit 7)             |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Factory configured - do |     SW2/7     | Unidentified |
          |   | not alter               |               |              |
          |---+-------------------------+---------------+--------------|
          | » | Factory configured - do |     SW2/8     | Unidentified |
          |   | not alter               |               |              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PIN 2 CABLE SELECTION FOR CABLE J1             |
          |------------------------------------------------------------|
          |      Setting       |  P1/1   |  P1/2   |  P1/3   |  P1/4   |
          |--------------------+---------+---------+---------+---------|
          |   |     Change     |  Open   |  Open   |  Open   | Closed  |
          |   |   Cartridge    |         |         |         |         |
          |   |     Signal     |         |         |         |         |
          |---+----------------+---------+---------+---------+---------|
          |   |  Head Select   |  Open   |  Open   | Closed  |  Open   |
          |---+----------------+---------+---------+---------+---------|
          | » | Reduced Write  |  Open   | Closed  |  Open   |  Open   |
          |   |    Current     |         |         |         |         |
          |---+----------------+---------+---------+---------+---------|
          |   | Disable pin 2  | Closed  |  Open   |  Open   |  Open   |
          |   |       3        |         |         |         |         |
          |------------------------------------------------------------|
          | Note: Select the ‘Head Select’ setting if the attached     |
          | drive is large capacity with more than 8 heads.            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   DMA CHANNEL SELECTION                    |
          |------------------------------------------------------------|
          |        Channel         |      JP4/1      |      JP4/2      |
          |------------------------+-----------------+-----------------|
          | » |   DMA 3 disabled   |      Open       |      Open       |
          |---+--------------------+-----------------+-----------------|
          |   |   DMA 3 enabled    |     Closed      |     Closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   BASE ADDRESS SELECTION                   |
          |------------------------------------------------------------|
          |  Setting   | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 |
          |------------+-------+-------+-------+-------+-------+-------|
          | » |  300h  |  On   |  On   |  On   |  Off  |  Off  |  On   |
          +------------------------------------------------------------+