Configuring the Modem

In this option set, the local and remote modems are configured for SDC operation. The modems default to Fast Call=Lvl3, and use LAPM error correction with modified V.42bis data compression. Enable Option Set 4 in both the local and remote modems, and ensure that Mode (AT*SM) is set the same in both modems.

Refer to “326X V.32bis and 326XFAST Modem Application Examples” below.

If you operate your modems in leased-line mode with Option Set 4, and one modem has software Revision 7.8 or 7.9, set the Fast Call parameter (AT*FC, Modulation Opts Menu) to Off in both modems.

Configuring an Option Set

This section describes how to configure and save an option set.

From the Modem Front Panel:

1)Read “Preparing for Operation,” earlier in this chapter.

2)Identify the option set for your application. The default is Option Set 1.

3)Display SELECT OPTIONS on the front panel (refer to Chapter 2 to review the function of front panel control keys).

4)Press until the modem displays SELECT OPTIONS:n, where n=1-4.

5)Press to select an option set. The modem displays SELECT OPTIONS=n.

Using the ATZ Command:

1)Read “Preparing for Operation,” earlier in this chapter.

2)Identify the option set for your application. The default is Option Set 1.

3)Type ATZn<CR>, where n=1-4.

NOTE: The modem disconnects from the line when the ATZ command is entered, and any test in progress is immediately terminated. Since anyAT command following the ATZ command is ignored by the modem, make sure ATZ is the last command entered in the command string.

To create a customized option set:

Using the AT&W Command:

1)Using the ATZn command, select an option set n that most closely suits the application.

2)Use AT commands (see Appendix A) to change parameter options. For example, to change RTS/CTS delay from its time in S-Register 26, to 15 ms, enter AT*DL1<CR>. The front panel displays OK.

3)Enter AT&Wn, where n specifies the address (option set) where the new customized option set is stored.

The front panel displays SAVING OPTIONS.

4)After a few seconds, your modifications are stored in the modem’s nonvolatile memory, and the modem front panel displays SAVE COMPLETED!

5)Do not turn off modem power until SAVE COMPLETED! appears.

4-10 Configuring the Modem

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Telenetics V.32bis Series, V.34-SDC, 326X V.34 manual Configuring an Option Set, To create a customized option set

326X V.34, V.32bis Series, V.34-SDC specifications

Telenetics has been a key player in the field of telecommunications, offering advanced modem solutions that cater to diverse communication needs. Among their notable products are the V.34-SDC and V.32bis series, including the 326X V.34 modem. These modems have been designed to enhance data transmission reliability and speed in various applications.

The Telenetics V.34-SDC modem represents a significant leap in technology, supporting data rates of up to 28.8 Kbps. This modem utilizes the advanced V.34 modulation scheme, which optimizes the use of existing telephone lines to deliver impressive performance, especially for users requiring high-speed data transmission. The V.34-SDC model also features robust error correction and data compression techniques, ensuring that users receive accurate data even over less than ideal connections. With its extended line-conditioning capabilities, the V.34-SDC modem can efficiently handle long distances and poor line conditions.

Equally noteworthy is the V.32bis series, which provides backward compatibility with V.32 modems, enabling seamless integration into existing systems. Capable of speeds up to 14.4 Kbps, the V.32bis modems are ideal for businesses and environments where legacy systems remain in use. It features adaptive equalization and advanced echo cancellation, ensuring a clear signal is maintained throughout the data transmission process. This versatility allows users to connect with various devices across different infrastructures.

The 326X V.34 modem further exemplifies Telenetics' commitment to high performance. It combines the V.34 capabilities with enhanced security features, offering users encryption options for sensitive data. This is particularly crucial for businesses that need to safeguard their information against potential vulnerabilities during transmission. The 326X also supports various data communication protocols, making it adaptable for multiple platforms and applications.

In summary, Telenetics’ V.34-SDC, V.32bis series, and 326X V.34 modems stand out for their high-speed data transmission, compatibility, advanced error correction, and security features. These technologies make them excellent choices for both enterprise and networking applications where reliable communication is vital. Telenetics continues to innovate, delivering modem solutions that meet the evolving demands of the telecommunications landscape.