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       # SEALEVEL SYSTEMS, INC.
       
          REL-16
       
          Card Type           Relay Output board                         
          Chip Set            Unidentified                               
          I/O Options         Parallel ports (2) via DB37 port           
          Data Bus            8-bit ISA                                  
          Card Size           Half-length, full-height                   
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |           Function            |           Label            |
          |-------------------------------+----------------------------|
          | 37-pin parallel port          |             P2             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 BASE I/O ADDRESS SELECTION                 |
          |------------------------------------------------------------|
          |Setting|SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6|SW1/7|SW1/8|
          |-------+------+------+------+------+------+-----+-----+-----|
          | 000h  |  On  |  On  |  On  |  On  |  On  | On  | On  | On  |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 008h  |  On  |  On  |  On  |  On  |  On  | On  | On  | Off |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 018h  |  On  |  On  |  On  |  On  |  On  | On  | Off | Off |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 038h  |  On  |  On  |  On  |  On  |  On  | Off | Off | Off |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 078h  |  On  |  On  |  On  |  On  | Off  | Off | Off | Off |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 780h  | Off  | Off  | Off  | Off  |  On  | On  | On  | On  |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 7C0h  | Off  | Off  | Off  | Off  | Off  | On  | On  | On  |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 7E0h  | Off  | Off  | Off  | Off  | Off  | Off | On  | On  |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 7F0h  | Off  | Off  | Off  | Off  | Off  | Off | Off | On  |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 7F8h  | Off  | Off  | Off  | Off  | Off  | Off | Off | Off |
          |------------------------------------------------------------|
          |                           Note:                            |
          |                                                            |
          |A total of 255 base address settings are available. The     |
          |switches are a binary representation of the decimal memory  |
          |addresses. SW1/8 is the Least Significant Bit and switch    |
          |SW1/1 is the Most Significant Bit. The switches have the    |
          |following decimal values: SW1/8=8, SW1/7=16, SW1/6=32,      |
          |SW1/5=64, SW1/4=128, SW1/3=256, SW1/2=512, SW1/1=1024. Turn |
          |off the switches and add the values of the switches to      |
          |obtain the correct memory address. (Off=1, On=0)            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               MISCELLANEOUS TECHNICAL NOTES                |
          |------------------------------------------------------------|
          | Output ports are connected to 16 dip reed relays. Relays   |
          | close when energized.                                      |
          +------------------------------------------------------------+