
ZOOM TELEPHONICS, INC.

V.34 I

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
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

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                                CONNECTIONS

        Purpose           Location            Purpose            Location

  Line out                  CN1       Diagnostic connector         CN3

  Line in                   CN2       Speaker                      CN4

                        BASE I/O ADDRESS SELECTION

       Port              IRQ               J1                  J2

   COM1: (3F8h)           4          Pins 2 & 3, 5 &    Pins 4 & 5 closed
                                        6 closed

   COM2: (3E8h)           3          Pins 1 & 2, 5 &    Pins 1 & 2 closed
                                        6 closed

   COM3: (2F8h)           4          Pins 2 & 3, 4 &    Pins 4 & 5 closed
                                        5 closed

   COM4: (2E8h)           3          Pins 1 & 2, 4 &    Pins 1 & 2 closed
                                        5 closed

   COM3: (2F8h)           2          Pins 2 & 3, 4 &    Pins 2 & 3 closed
                                        5 closed

   COM4: (2E8h)           2          Pins 1 & 2, 4 &    Pins 2 & 3 closed
                                        5 closed

   COM3: (3E8h)           5          Pins 2 & 3, 4 &    Pins 5 & 6 closed
                                        5 closed

   COM4: (2E8h)           5          Pins 1 & 2, 4 &    Pins 5 & 6 closed
                                        5 closed

                         Proprietary AT Command Set

               See document V1397 for a full command summary.

