COMTROL CORPORATION

HOSTESS I/MC

Card Type          I/O controller
Chipset/Controller NEC Corporation
I/O Options        Serial ports (8 or 16)
Maximum DRAM       8MB

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                                CONNECTIONS

       Purpose           Location           Purpose           Location

  100 Pin interface         CN1        Upgrade connector         P1
  connector                            3

  Upgrade connector         J1         Upgrade connector         P2
  1                                    4

  Upgrade connector         J2
  2

  Note:Connectors J1 and J2 interface with connectors P1 and P2.

        DRAM CONFIGURATION

    Size      Bank 0      Bank 1

    2MB       (1)1Mx36   (1)1Mx36

    8MB       (1)4Mx36   (1)4Mx36

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          RS-232 MODE SELECTION

       Jumper               RS-232

       JP1/A-D        Pins 1 & 2 closed

       JP2/A-D        Pins 1 & 2 closed

       JP3/A-D        Pins 1 & 2 closed

       JP4/A-D        Pins 1 & 2 closed

       JP5/A-C        Pins 1 & 2 closed

       JP6/A-C        Pins 1 & 2 closed

       JP7/A-C        Pins 1 & 2 closed

       JP8/A-C        Pins 1 & 2 closed

       JP9/A-C        Pins 1 & 2 closed

      JP10/A-C        Pins 1 & 2 closed

      JP11/A-C        Pins 1 & 2 closed

      JP12/A-C        Pins 1 & 2 closed

      JP13/A-C        Pins 1 & 2 closed

      JP14/A-C        Pins 1 & 2 closed

      JP15/A-C        Pins 1 & 2 closed

      JP16/A-C        Pins 1 & 2 closed

          RS-422 MODE SELECTION

       Jumper               RS-422

       JP1/A-C        Pins 2 & 3 closed

        JP1/D         Pins 1 & 2 closed

       JP2/A-C        Pins 2 & 3 closed

        JP2/D         Pins 1 & 2 closed

       JP3/A-C        Pins 2 & 3 closed

        JP3/D         Pins 1 & 2 closed

       JP4/A-C        Pins 2 & 3 closed

        JP4/D         Pins 2 & 3 closed

       JP5/A-C        Pins 2 & 3 closed

       JP6/A-C        Pins 2 & 3 closed

       JP7/A-C        Pins 2 & 3 closed

       JP8/A-C        Pins 2 & 3 closed

       JP9/A-C        Pins 2 & 3 closed

      JP10/A-C        Pins 2 & 3 closed

      JP11/A-C        Pins 2 & 3 closed

      JP12/A-C        Pins 2 & 3 closed

      JP13/A-C        Pins 2 & 3 closed

      JP14/A-C        Pins 2 & 3 closed

      JP15/A-C        Pins 2 & 3 closed

      JP16/A-C        Pins 2 & 3 closed

                       MISCELLANEOUS TECHNICAL NOTE

     Serial ports are located on an interface box which connects to the
             Hostess IM/C via the 100-pin interface connector.