PRACTICAL PERIPHERALS, INC.

PRACTICAL 336 EXTERNAL VOICE/DATA/FAX

Card Type                    Modem (synchronous)
Chipset                      Unidentified
I/O Options                  Microphone in, speaker out, voice,
                             speakerphone
Maximum Data Rate            33.6Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     Serial
Fax Class                    Unidentified
Data Modulation              Unidentified
Fax Modulation               Unidentified
Error Correction/Compression Unidentified

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                                CONNECTIONS

           Function             Label           Function            Label

  Telephone line out            CN1     Speaker out                 CN5

  Telephone line in             CN2     DC power in                 CN6

  RS-232/422                    CN3     Power switch                SW1

  Microphone in                 CN4

                             DIAGNOSTIC LED(S)

    LED          Color         Status                Condition

     MR       Unidentified       On                 Power is on

     MR       Unidentified       Off                Power is off

     TR       Unidentified       On              DTR signal is high

     TR       Unidentified       Off             DTR signal is low

     SD       Unidentified       On          Modem is transmitting data

     SD       Unidentified       Off       Modem is not transmitting data

     RD       Unidentified       On           Modem is receiving data

     RD       Unidentified       Off        Modem is not receiving data

     OH       Unidentified       On              Modem is off-hook

     OH       Unidentified       Off              Modem is on-hook

     CD       Unidentified       On           Carrier signal detected

     CD       Unidentified       Off        Carrier signal not detected

     RI       Unidentified       On               Phone is ringing

     RI       Unidentified       Off            Phone is not ringing

     HS       Unidentified       On         Modem is operating at 4800bps
                                                     or faster

     HS       Unidentified       Off        Modem is operating at slower
                                                    than 4800bps

         SUPPORTED STANDARD COMMANDS

            The command set is unidentified.