U.S. ROBOTICS, INC.

SPORTSTER 1200PC

Modem Type             Data (synchronous/asynchronous)
Maximum Data Rate      1200bps
Data Bus               8-bit ISA
Data Modulation        Bell 103A/212A
Protocol

[Image]

                                CONNECTIONS

         Purpose           Location            Purpose           Location

  Line out                    CN1       Volume                     SW2

  Line in                     CN2

                DTR SIGNAL

  Setting                   SW1/1

  » DTR forced high           On

  DTR normal                 Off

                            RESULT CODES

  Setting                                       SW1/2

  » Verbose result codes enabled                 Off

  Numeric result codes enabled                   On

           RESULT CODES DISPLAY

  Setting                   SW1/3

  » Display enabled           On

  Display disabled           Off

             ECHO COMMANDS DISPLAY

  Setting                        SW1/4

  » Local echo enabled            Off

  Local echo disabled             On

                                AUTO ANSWER

  Setting                                             SW1/5

  » Modem does not answer on first                     On
  ring

  Modem answers on first ring                          Off

           CARRIER DETECT

  Setting               SW1/6

  » CD normal            Off

  CD forced high         On

                  MULTLINE INSTALLATION

  Setting                               SW1/7

  » Single phone connected               Off

  Multiple phones connected               On

                        AT COMMAND SET

  Setting                                  SW1/8

  » AT command set recognized                On

  AT command set disabled                   Off

                    COM PORT CONFIGURATION

        Port                  J1                  J2

    COM1: (3F8h)       Pins 1 & 2 closed   Pins 1 & 2 closed

    COM2: (3E8h)       Pins 2 & 3 closed   Pins 1 & 2 closed

    COM3: (2F8h)       Pins 1 & 2 closed   Pins 2 & 3 closed

    COM4: (2E8h)       Pins 2 & 3 closed   Pins 2 & 3 closed

           INTERRUPT SELECTION

         IRQ                  J3

          3           Pins 3 & 5 closed

          4           Pins 1 & 3 closed

          5           Pins 2 & 4 closed

          7           Pins 4 & 6 closed

      Disabled               Open

                         Proprietary AT Command Set

                         ANALOG LOOPBACK SELF TEST

  Type:          Register

  Format:        AT [cmds] S16=n [cmds]

  Example:       ATS16=139<CR>

  Description:   Selects the tone dialing test.

  Command                                Function

       0         Data mode.

       1         Analog loopback.

       2         Dial testing.

       4         Test pattern.

       5         Analog loopback and test pattern.