COMTROL CORPORATION

HOSTESS 550/MC 16

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

[Image]

                         CONNECTIONS

            Purpose                       Location

  100 Pin interface connector               CN1

                 RS-232/RS-422 MODE SELECTION

       Jumper               RS-232               RS-422

      JP1A - D         Pins 1 & 2 closed   Pins 2 & 3 closed

      JP2A - D         Pins 1 & 2 closed   Pins 2 & 3 closed

      JP3A - D         Pins 1 & 2 closed   Pins 2 & 3 closed

      JP4A - D         Pins 1 & 2 closed   Pins 2 & 3 closed

      JP5A - D         Pins 1 & 2 closed   Pins 2 & 3 closed

      JP6A - D         Pins 1 & 2 closed   Pins 2 & 3 closed

      JP7A - D         Pins 1 & 2 closed   Pins 2 & 3 closed

      JP8A - D         Pins 1 & 2 closed   Pins 2 & 3 closed

      JP9A - D         Pins 1 & 2 closed   Pins 2 & 3 closed

      JP10A - D        Pins 1 & 2 closed   Pins 2 & 3 closed

      JP11A - D        Pins 1 & 2 closed   Pins 2 & 3 closed

      JP12A - D        Pins 1 & 2 closed   Pins 2 & 3 closed

      JP13A - D        Pins 1 & 2 closed   Pins 2 & 3 closed

      JP14A - D        Pins 1 & 2 closed   Pins 2 & 3 closed

      JP15A - D        Pins 1 & 2 closed   Pins 2 & 3 closed

      JP16A - D        Pins 1 & 2 closed   Pins 2 & 3 closed

                       MISCELLANEOUS TECHNICAL NOTE

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