Chapter 3 – Fax Class 2 Commands

 

 

Format conversion, +FFC

 

Class 2.0/2.1

 

Write syntax:

+FFC=<vrc>,<dfc>,<lnc>,<wdc>

Valid values:

see table below

Default values:

manufacturer’s option

Mandatory values: 0,0,0,0

This compound parameter determines the modem response to mismatches between the Phase C data delivered after the +FDT command and the data format parameters negotiated for the facsimile session. For mismatch checking, the modem depends on the host to indicate the data format with embedded <DLE><format> character pairs.

If these format indicators are not provided, the modem shall assume that the format is as negotiated for that session.

For each subparameter, value 0 determines that mismatch checking is disabled, and all format codes of this type are ignored. Value 1 determines that mismatch checking is enabled, with session termination if the format codes do not match the negotiated format reported in +FCS: responses. Other values enable degrees of format conversion. Unspecified values are reserved.

Setting

Description

vrc=0

Vertical resolution format codes ignored

vrc=1

Vertical resolution checking enabled

vrc=2

Vertical resolution conversion enabled for 1-D data

vrc=3

Vertical resolution conversion enabled for 2-D data

dfc=0

Data format codes ignored

dfc=1

Data format checking enabled

dfc=2

Data format conversion enabled

lnc=0

Page length format codes ignored

lnc=1

Page length checking enabled

lnc=2

Page length conversion enabled for 1-D data

lnc=3

Page length conversion enabled for 2-D data

wdc=0

Page width format codes ignored

wdc=1

Page width checking enabled

wdc=2

Page width conversion enabled

Class 2

Not Applicable

 

Note that the four arguments of the Class 2.0/2.1 command +FFC cover the same

 

technical content as these four separate Class 2 commands (which are described in

 

detail below):

+FVRFC (for vertical resolution),

+FDFFC (for data compression format version), +FLNFC (for page length format conversion), and +FWDFC (for page width format conversion).

Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C)

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Multi-Tech Systems MT5634SMI V.92, MT5634SMI V.34 manual Class 2.0/2.1, Format conversion, +FFC
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MT5634SMI V.34, MT5634SMI V.92 specifications

The Multi-Tech Systems MT5634SMI is a versatile and robust external modem designed to cater to a variety of communication needs. As a V.92/V.34 standard modem, it provides reliable and efficient data connections for both home and business users. Its unique blend of features and technologies makes it an excellent choice for users looking to achieve optimal performance in their data transmission.

One of the standout features of the MT5634SMI is its support for the V.92 standard, which offers faster throughput and enhanced performance compared to prior standards. With V.92, users can experience download speeds of up to 56 Kbps and upload speeds reaching 48 Kbps. This improved speed is particularly beneficial for users who frequently download large files or engage in data-intensive activities.

The modem also includes the V.34 technology, which further enhances its capabilities by improving connection reliability and data integrity over various line conditions. Utilizing advanced error correction and data compression techniques, the V.34 modem ensures a smoother and faster communication experience. This makes it ideal for users in areas with fluctuating line quality or those who require stable connections for online conferencing or telecommuting.

In terms of form factor, the MT5634SMI is an external modem, which allows for easy installation and portability. Its compact design ensures it can fit into any workspace without taking up much room or adding clutter. The modem connects to computers via standard serial ports, making it compatible with a wide range of devices, both modern and legacy.

Additional features of the MT5634SMI include built-in diagnostics to assist troubleshooting and ensure smooth operation. It supports multiple operating environments, catering to users operating on various systems, providing versatility for both home and office settings. The modem's compatibility with popular operating systems guarantees that users can easily integrate it into their existing setups without a hassle.

In conclusion, the Multi-Tech Systems MT5634SMI V.92/V.34 modem stands out as a reliable choice for anyone needing high-speed internet connectivity. With its strong feature set, enhanced technologies, and user-friendly design, it is an asset for enhancing communication and data transfer capabilities. Whether for personal use or business applications, the MT5634SMI delivers performance and reliability, making it a valuable addition to any technology arsenal.
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