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       # DECISION COMPUTER INTERNATIONAL CO., LTD.
       
          IPCCPU
       
          Processor        Z80                                           
          Processor Speed  9.83MHz                                       
          Chipset          Unidentified                                  
          Maximum Onboard  32KB SRAM/32KB EPROM                          
          Memory           
          BIOS             Unidentified                                  
          Video Chipset    Unidentified                                  
          Maximum Video    Unidentified                                  
          Memory           
          Video Types      LCD display                                   
          Supported        
          Highest          4 x 20 (text only)                            
          Resolution       
          Supported        
          I/O Options      Serial ports (2), LCD video out, expansion    
                           bus                                           
          Dimensions       80 x 100mm                                    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Function         | Label  |    Function     | Label |
          |-------------------------+--------+-----------------+-------|
          | External battery        |  JP6   | Expansion bus   |  P7   |
          | connector               |        |                 |       |
          |-------------------------+--------+-----------------+-------|
          | 5V DC power in          |   P1   | Reset switch    |  P9   |
          |-------------------------+--------+-----------------+-------|
          | Generic serial port 2   |   P3   | LCD video out   |  P10  |
          |-------------------------+--------+-----------------+-------|
          | Generic serial port 1   |   P4   | IC5 voltage     |  RV1  |
          |                         |        | adjustment      |       |
          |-------------------------+--------+-----------------+-------|
          | Keyboard connector      |   P5   | LCD contrast    |  RV2  |
          | (IPCKEY/IPCKEYM)        |        | adjustment      |       |
          |------------------------------------------------------------|
          | Note:RV1 should be adjusted so that pin 4 of IC5 is 1.3V   |
          | and pin 5 is equal to the voltage going into P1. P3 and P4 |
          | are not RS-232 serial. The interface type is provided by   |
          | one of the boards on the sections for the IPC232ST,        |
          | IPC232CL, and IPC422/485 cards.                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Setting                 | Label | Position  |
          |----------------------------------------+-------+-----------|
          | » | System interrupt timers enabled    |  JP1  |  Closed   |
          |---+------------------------------------+-------+-----------|
          |   | System interrupt timers disabled   |  JP1  |   Open    |
          |---+------------------------------------+-------+-----------|
          | » | MAX960 chip not installed in IC5   |  JP2  |  Closed   |
          |---+------------------------------------+-------+-----------|
          |   | MAX960 chip installed in IC5       |  JP2  |   Open    |
          |---+------------------------------------+-------+-----------|
          | » | Watchdog timer disabled            |  JP3  |   Open    |
          |---+------------------------------------+-------+-----------|
          |   | Watchdog timer enabled             |  JP3  |  Closed   |
          |---+------------------------------------+-------+-----------|
          | » | Power fail interrupt disabled      |  JP4  |   Open    |
          |---+------------------------------------+-------+-----------|
          |   | Power fail interrupt enabled       |  JP4  |  Closed   |
          |---+------------------------------------+-------+-----------|
          | » | Real-time clock interrupt disabled |  JP5  |   Open    |
          |---+------------------------------------+-------+-----------|
          |   | Real-time clock interrupt enabled  |  JP5  |  Closed   |
          |---+------------------------------------+-------+-----------|
          | » | Keyboard enabled                   |  JP7  | Pins 2 &  |
          |   |                                    |       | 3 closed  |
          |---+------------------------------------+-------+-----------|
          |   | Keyboard disabled                  |  JP7  | Pins 1 &  |
          |   |                                    |       | 2 closed  |
          +------------------------------------------------------------+
       
          Card Type         Serial                                       
          Chipset           Unidentified                                 
          I/O Options       Serial port                                  
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function       | Label |      Function       | Label |
          |----------------------+-------+---------------------+-------|
          | Header to main board |  P1   | RS-232 or current   |  P3   |
          | P3 or P4             |       | loop serial port    |       |
          |----------------------+-------+---------------------+-------|
          | DC power in          |  P2   |                     |       |
          +------------------------------------------------------------+
       
          IPCCPU (IPC422/485 SERIAL CARD)
       
          Card Type         Serial                                       
          Chipset           Unidentified                                 
          I/O Options       Serial port                                  
       
 (IMG) IMG 3
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Function         | Label |     Function     | Label |
          |-------------------------+-------+------------------+-------|
          | Header to main board P3 |  P1   | RS-422 or RS-485 |  P3   |
          | or P4                   |       | serial port      |       |
          |-------------------------+-------+------------------+-------|
          | DC power in             |  P2   |                  |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERIAL PORT CONFIGURATION                  |
          |------------------------------------------------------------|
          |     Setting      |        JP2         |        JP3         |
          |------------------+--------------------+--------------------|
          |      RS-422      | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |      RS-485      | Pins 1 & 2 closed  |        Open        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 RECEIVER ENABLE SELECTION                  |
          |------------------------------------------------------------|
          |          Setting          |  JP1/A   |  JP1/B   |  JP1/C   |
          |---------------------------+----------+----------+----------|
          |   RTS enables receiver    |  Closed  |   Open   |   Open   |
          |---------------------------+----------+----------+----------|
          |   DTR enables receiver    |   Open   |   Open   |  Closed  |
          |---------------------------+----------+----------+----------|
          |  Receiver always enabled  |   Open   |  Closed  |   Open   |
          |------------------------------------------------------------|
          | Note:The receiver may not be always enabled in RS-485      |
          | mode.                                                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                MISCELLANEOUS TECHNICAL NOTE                |
          |------------------------------------------------------------|
          | No information is available on the IPC232FS card.          |
          +------------------------------------------------------------+