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

Changing Default Configuration Settings

Depending on application requirements, you may need to change the following:

•Buffer Delay (AT*DB, EC/DC OPTS category), when enabled, allows buffered data in the communications link to be effectively transmitted to the

other modem before the modems disconnect. Enable this feature if your application does not ensure a complete transfer of data before the modems disconnect.

•When the 326X is configured for Option Set 1: if you do not use theAT ACU to send commands to operate the modem, you must customize the DTE port by selecting these options:

—DTE Rate. Set the modem’s DTE rate to match the asynchronous DTE’s rate using the DTE Rate option (AT*DE, TERMINAL OPTS category).

—Parity. Set the modem’s parity to match the parity set in the asynchro- nous DTE using the Parity option (AT*RP, ACU OPTS category).

—Character Length. Set the modem’s character length (Char Length, ACU OPTS category) to match the length set in the asynchronous DTE.

(Refer to Appendix A for parameter and setting descriptions.)

•In Option Set 1, the default settings assume you will use the AT ACU to oper- ate the modem (for example, the default for ACU Select=AT; EIA signals are set high). If you plan on using DTR transitions (“DTR Dialing”) to signal the modem to make a call (rather than AT Commands), do the following:

1)Set Default Dial=1 (AT*DA, ACU OPTS category).

2)Store a number in memory location 1 (using Enter Phone #, AT&Z, 9600 T/D? category).

3)Set DTR=108.1 (AT&D, TERMINAL OPTS category). When DTR is raised, the modem will dial the specified call.

•If the DTE does not require EIA signal pins to be held high, adjust the EIA settings (TERMINAL OPTS category) to match your application requirements.

•In Option Set 1, the modem is set for XON/XOFF (software) flow control. If your application requires hardware flow control, change the Flow setting (AT*FL, TERMINAL OPTS category).

Configuring the Modem

Configuring the Modem 4-17

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Telenetics V.34-SDC manual Option Set 1-Async Calls to Central Site Using AT ACU, Changing Default Configuration Settings
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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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