U.S. ROBOTICS, INC.

SPORTSTER 28,800 INTERNAL

Modem Type                   Data (synchronous/asynchronous)/Fax
Maximum Data Rate            28.8Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     8-bit ISA
Fax Class                    Class I & II.0
Data Modulation Protocol     Bell 103A/212A

                             ITU-T V.21, V.22, V.22bis, V.23, V.32,
                             V.32bis, V.34

                             Rockwell V.FC
Fax Modulation Protocol      ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis

[Image]

                                CONNECTIONS

         Purpose           Location            Purpose           Location

  Line out                    CN1       Line in                    CN2

                COM PORT SETTINGS

  COM        J1/1      J1/2      J1/3      J1/4

  COM1      Closed     Open      Open      Open

  » COM2     Open     Closed     Open      Open

  COM3       Open      Open     Closed     Open

  COM4       Open      Open      Open     Closed

                             INTERRUPT SELECT

  Interrupt      J2/1        J2/2         J2/3         J2/4        J2/5

    IRQ2        Closed       Open         Open         Open        Open

    IRQ3         Open       Closed        Open         Open        Open

    IRQ4         Open        Open        Closed        Open        Open

    IRQ5         Open        Open         Open        Closed       Open

    IRQ7         Open        Open         Open         Open       Closed

              DTR SIGNAL

  Setting                SW1/1

  » DTR normal            Off

  DTR forced high          On

                           RESULT CODES

  Setting                                     SW1/2

  » Verbal result codes enabled                Off

  Numeric result codes enabled                  On

   RESULT CODES DISPLAY

  Setting       SW1/3

  » Enabled       On

  Disabled       Off

       ECHO DISPLAY

  Setting       SW1/4

  » Enabled      Off

  Disabled        On

        AUTO ANSWER

  Setting         SW1/5

  » Disabled       On

  Enabled          Off

           CARRIER DETECT

  Setting               SW1/6

  » CD normal            Off

  CD forced high         On

           SOFTWARE RESET

     Setting            SW1/7

  » CD normal            Off

  CD forced high         On

     AT COMMAND SET

  Setting      SW1/8

  Enabled       On

  Disabled      Off

                         Proprietary AT Command Set

               See document V1248 for a full command summary.