Chapter 2 – Fax Class 1 and 1.0 Commands

 

 

Command: FTH

Transmit Data with HDLC Framing

Description:

This command causes the modem to transmit data using HDLC protocol and

 

the modulation defined below.

Defined Values:

<mod> Decimal number corresponding to the selected modulation mode and

 

data rates shown in Table 3-2.

Result Codes:

CONNECT Reported for either of two conditions:

 

1.

At the beginning of transmission of the training pattern for the selected

 

modulation.

 

2.

If the Final Frame bit is 0.

 

OK Reported for either of two conditions:

 

1.

If the Final Frame Bit is 1.

 

2.

If the DTE sends only <DLE><ETX> (a null frame) while transmitting flags.

 

ERROR – Reported if five seconds elapse from the time when the modem

 

reported the CONNECT result code without any additional data transmitted

from the DTE; the modem then turns off carrier and returns to the command mode.

Reporting Current or Selected Values: Command: +FTH? Response: +FTH: <mod>

Example: +FTH: 98 For V.17 9600 bps.

Reporting Supported Range of Parameter Values: Command: +FTH? Response: +FTH?

Example: +FTH: 98 For V.17 9600 bps.

Command: +FRH

Receive Data with HDLC Framing

Description:

This command causes the modem to receive frames using HDLC protocol

 

and the modulation defined below. An ERROR response code results if this

 

command is issued while the modem is on-hook.

Defined Values:

<mod> Decimal number corresponding to the selected modulation mode and

 

data rates shown in Table 3-2.

Reporting Current or Selected Values:

 

Command: +FRH?

Response: +FRH: <mod>

 

Example: +FRH: 98 For V.17 9600 bps.

Reporting Supported Range of Parameter Values:

 

Command: +FRH?

 

Response: +FRH?

 

Example: +FRH: 98 For V.17 9600 bps.

Result Codes:

CONNECT Reported for either of two conditions:

 

1.

When the selected carrier is detected with an HDLC flag.

 

2.

If the DTE sends another +FTH=<MOD> command after sending the result

 

code indicating frame reception is complete.

 

+FCERROR – Reported if a different carrier is detected and FAR=0.

 

NO CARRIER – Reported if loss of carrier is detected.

 

OK – Reported for either of two conditions:

 

1.

If a frame was received correctly.

 

2.

If the DTE sends any character other than XON or XOFF while the modem

 

is in the configured flow control.

 

ERROR – Reported if a frame was received in error.

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

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Multi-Tech Systems MT5634SMI V.92 Command FTH Transmit Data with Hdlc Framing, Command +FRH Receive Data with Hdlc Framing
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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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