    AST RESEARCH, INC.          TECHNICAL BULLETIN # 0947                6-24-94

                            ASCENTIA 900N AND MEGAHERTZ MODEM

    PROBLEM:        When running PROCOM PLUS under DOS in Windows, the Megahertz
                    modem echoes multiple characters on the screen in response to
                    the AT&V command.  This problem occurs intermittently with 50
                    Mhz and continuously with 75 Mhz.

    CAUSE:          Modem-specific problem with Megahertz PCMCIA P/N CC324FM,
                    UPC # 09030.

    SYSTEMS
    AFFECTED:           AST                                             REVISION
                    PART NUMBER           DESCRIPTION                     LEVEL

                    501299-2XX      ASCENTIA 900N 4/50 CS10                All
                    501300-3XX      ASCENTIA 900N 4/50 CT9                 All
                    501302-2XX      ASCENTIA 900N 4/75 CS10                All
                    501304-3XX      ASCENTIA 900N 4/75 CT10                All

    SOLUTION:       If you experience the problem stated above, Megahertz is
                    extending the following options:

                    1. Megahertz will gladly exchange the product for the XJ124FM
                       modem model.  This is the XJACK version of the modem and
                       has been verified to be compatible with the Ascentia 900N.
                       Contact the Megahertz Support Center at (801) 320-7000.
                    2. Megahertz will gladly upgrade the modem through their
                       upgrade program.  Contact Megahertz Sales Support at
                       (800) 527-8677, ext. 6772.  The price is dependent upon the
                       new modem chosen.
                    3. Return the modem to the place of purchase for a full refund.
                       Contact the Megahertz Support Center  at (801) 320-7000 if
                       there are any difficulties in returning the item.
                    4. If the modem in question is an OEM (Original Equipment
                       Manufacturer) modem that appears to be a Megahertz modem,
                       return the item to the company whose name appears on the
                       modem.  Megahertz can not provide support for any
                       non-branded Megahertz product.

    NOTE:           The original documentation with Megahertz is on file at AST
                    Service in Irvine, CA.