Option Set Descriptions—326X V.32bis and V.34 Modems

Option Set 1—Async Calls to Central Site Using the AT ACU

With Option Set 1, the modem communicates over dial lines using an asynchronous data format. This option set is appropriate for home or office use where you plan to dial, for example, into a central-site computer, minicomputer, an electronic bulletin board, or a personal computer. When you first install the modem, it is set to power up with Option Set 1 as the factory default. The modem recognizes the standard AT Command Set and the Telenetics-enhanced AT Command set.

To satisfy common asynchronous communications software packages, Option Set 1 holds several EIA 232-D (ITU V.24) control signals asserted (see Tables 4-1and

4-2). The modem originates calls and answers incoming calls according to the setting of S-Register 0 (see the “S-Registers”section in Chapter 5 for more information).

At the beginning of each connection, the modem negotiates the highest common data rate with the remote modem set to its factory default setting or automode. The modem also uses the adaptive rate feature in the V.34, V.32bis, orV.32 modulation modes. This ensures maximum throughput when line quality is poor.

Option Set 2—Sync Answering Central Site Without an ACU

Option Set 2 satisfies the needs of a synchronous application where most calls are to a central site (see Table 4-1).

Because calls are received primarily at the central site, the modem is set to answer calls automatically. With DTR=108.2, the local DTE can control the DTR signal. This allows the local DTE to use DTR transitions to connect the modem to the central site at the beginning of transmission and disconnect it when transmission ends.

At the beginning of each connection, the modem negotiates the highest common data rate with the remote modem. The modem uses the adaptive rate feature in the V.34, V.32bis, or V.32 modulation modes. This ensures maximum throughput when line quality is poor.

Option Set 3—Sync Calls to Central Site Using the V.25bis ACU

Option Set 3 satisfies the needs of a synchronous application, where the remote modems originate calls to a central site (see Table 4-1).

With Option Set 3, the modem originates calls with its V.25bis ACU. The DTR option is set to 108.2 so that the V.25bis ACU can manipulate the DTR signal. All other options in the ACU OPT’S category are set for a typical synchronous DTE.

At the beginning of each connection, the modem negotiates the highest common data rate with the remote modem. The modem uses the adaptive rate feature in the V.34, V.32bis, or V.32 modulation modes. This ensures maximum throughput when line quality is poor.

Configuring the Modem

Configuring the Modem 4-7

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Telenetics V.32bis Series, V.34-SDC, 326X V.34 manual Option Set Descriptions-326X V.32bis and V.34 Modems
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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.
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