COMTROL CORPORATION

HOSTESS S

Card Type          I/O controller
Chipset/Controller Texas Instruments (UART)
I/O Options        Serial ports (2)
Maximum DRAM       N/A

[Image]

                                CONNECTIONS

       Purpose           Location           Purpose           Location

  Optional second           CN1        9-pin serial              DB9
  DB25 connector                       connector

  25-pin serial            DB25
  connector

                I/O ADDRESS SELECT

   Address      SW1/1        SW1/2        SW1/3

  200h-207h       On           On          On

  280h-287h       On           On          Off

  2COh-287h       On          Off          On

  300h-307h       On          Off          Off

  Reserved       Off           On          On

  Reserved       Off           On          Off

  Reserved       Off          Off          On

               SERIAL PORT INTERRUPT SELECT

   IRQ      SW2/4     SW2/5     SW2/6     SW2/7    SW2/8

   IRQ2      Off       Off       Off       Off      On

   IRQ3      Off       Off       Off       On       Off

   IRQ5      Off       Off       On        Off      Off

  IRQ10      Off       On        Off       Off      Off

  IRQ11       On       Off       Off       Off      Off

              LINE TO LINE TERMINATION SELECT

     Jumper         Setting               Meaning

      JP1           Closed       Receive clock for port 1

      JP2           Closed       Receive signal for port 1

      JP3           Closed       Transmit clock for port 1

      JP4           Closed       Receive signal for port 2

  Note:The default position for the jumpers is open.