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    AST RESEARCH, INC.           TECHNICAL BULLETIN # 1075               3-2-95

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    			   BRAVO LC 4/33S FAILS TO CONNECT TO IBM RS/6000

    PROBLEM
    The Bravo LC 4/33S system fails to connect to an IBM RS/6000 through a serial
    port.

    CAUSE
    The Bravo LC 4/33 system has an integrated 16450 UART on the system board.
    The 16450 UART being used does not have a built-in 16-character Transmit and
    Receive FIFO (first in, first out) buffering mode.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    501378-001     BRAVO LC 4/33S

    SOLUTION
    Install an add-in serial card that contains a 16550A UART for faster
    communications of 9600 or higher. If the integrated serial ports are not being
    used, disable them from the add-in serial card.  The add-in serial card can be
    purchased at a local computer store.