2400 BPS Internal Modem  (250-1037D)  Specifications   Faxback Doc. # 5026

Compatibility: Hayes                 Receiver Sensitivity: -43 dBm.
        Modem: CCITT V.22 bis at           Transmit Level: -10 dBm.
               2400 bps.                  Tone Dial Level: N/A.
               Bell 212A & CCITT           Line Impedance: 600 ohms
               V.22 at 1200 bps.       Ringer Equivalence: NA
               Bell 103J/113 at 300            Modulation:
               bps.                              300 Baud: Frequency Shift
       Dialer: "AT" command set.                           Keyed (FSK)
   Data Rates: 2400, 1200, 300 bps.             1200 Baud: Differential Phase
 Speed Select: Automatic.                                  Shift Keyed (DPSK)
   CMD Buffer: 42 characters.                   2400 Baud: 16-point Quadrature
      Speaker: On.                                         Amplitude Modula-
 Data Formats: N/A.                                        tion/Phase Shift
Testing Modes: Analog (local) loopback                     Keyed (QAM/PSK)
               both initiate & respond.           Dialing: Pulse (10 pps)
               Software command                            Tone (Including *
               controlled.                                 and #; duration
                                                           95 ms, adjustable).



(smm 07/28/93)