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GENERAL
The V.3400 can send and receive fax documents at speeds up to 14400
bps when used with the appropriate software. As a fax modem, the
modem conforms to EIA-578 which defines a standard interface
between the DTE (a PC with fax software) and the DCE as a fax
modem.
When used with a Class 1 fax software package, V.3400 is CCITT
Group 3 compatible and can send and receive documents at 2400, 4800,
7200, 9600, 12000, or 14400 bps with any Group 3 fax machine or PC
with a fax modem.
Service Class selection configures the modem for Class 0 data mode or
Class 1 fax mode. The LCD display indicates when fax mode is
enabled. The V.3400 default configuration is for data mode; Service
Class is normally only changed by the software as necessary.
Previous chapters in this manual contain information about the modem
that should be understood prior to fax operation. Those chapters should
be read before this chapter.
Users should understand the fax software manual before attempting fax
communications.
FAX OPERATION
The user's manual for the Class 1 fax software package should provide
most information necessary to configure the software and send and
receive faxes.
The information in Chapter 2 of this manual should be considered as
well, and also the next section of this chapter provides important infor-
mation for proper fax communications.
V.3400
Chapter 9
Fax Operation
9-1

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   Summary of Contents for Motorola V.3400

  • Page 1

    Chapter 9 Fax Operation GENERAL The V.3400 can send and receive fax documents at speeds up to 14400 bps when used with the appropriate software. As a fax modem, the modem conforms to EIA-578 which defines a standard interface between the DTE (a PC with fax software) and the DCE as a fax modem.

  • Page 2

    The user must check the software manual for the particular requirements and refer to Chapter 4 for manual/autoan- swer and TALK/DATA selection. Select the necessary options for fax operation. V.3400...

  • Page 3

    Class 1 software package, but this section briefly summarizes some of them. As a Service Class 1 facsimile DCE, the V.3400 provides the basic services required to support Group 3 facsimile operation. Support from a Class 1 facsimile DTE is required to implement the CCITT T.30...

  • Page 4

    The NO CARRIER result code indicates that a connection could not be established (no carrier detected) within the number of seconds specified in status register S7, or the dial command has been aborted due to a character sent from the DTE. V.3400...

  • Page 5

    CED is completed, the call is released and the modem will send the NO CARRIER result code. On Hook H In fax mode, the H command instructs the modem to stop any transmis- sion and terminate the call by going on hook. V.3400...

  • Page 6

    The modem aborts the command and sends an OK result code if the DTE sends an additional character, which is discarded, during the command execution. This command returns an ERROR result code if issued while the modem is on hook. V.3400...

  • Page 7

    The modem accepts one of the values listed in Table 9-1. Table 9-1. Modulation Values Value Modulation Speed V.21 channel 2 300 bps V.27 ter 2400 bps V.27 ter 4800 bps V.29 7200 bps V.17 7200 bps V.17 7200 bps * V.29 9600 bps V.17 9600 bps V.3400...

  • Page 8

    V.17 14400 bps* * with short train The V.3400 returns an ERROR result code if any of the above commands are issued while the modem is on hook. Facsimile Transmit +FTM= (Mod) +FTM= (Mod) causes the modem to transmit data using the modulation and speed selected with the (Mod) parameter.

  • Page 9

    If the modem detects any carrier or tone that differs from that specified in a +FRM or +FRH command, it sends the +FCERROR result code and returns to command state, allowing the DTE to attempt a recovery. The numeric form of this response is +F4. V.3400...

  • Page 10

    (with HDLC framing up to 9600 bps), fax mode can also be used for BFT if supported by the Class 1 software package. The Binary File Transfer is an option in the fax software package, not a separate mode of operation. 9-10 V.3400...

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