Configuring the Modem for SDC Operation

Configuring the Modem

You can configure the 326XFAST-SDC Modem for SDC in one of these ways:

•Select Option Set 2, 3, or 4Leased, discussed below

•Configure the modem as follows:

—Select one of the reliable data transfer modes (Reliable, Auto Reliable, or Speed Auto Reliable).

—Choose an Auto-Call Unit (ACU)—AT, V.25bis, LPDA, or None—using the ACU Select option, ACU OPT’S category.

—Select a bit-synchronous data format (depending on the ACU type). Refer to Appendix A for additional information on each of these methods.

Ensuring Optimum Network Performance in SDC Mode

The following parameters are critical for ensuring optimum network performance:

•Fast Call (AT*FC)

•DTE Rate (AT*DE)

•Flow (AT*FL)

•TpDlyMin (AT*TD)

Table 4-4shows 326X-SDC option set default settings.

Carefully note the following when configuring the modem for SDC operation:

•Fast Call. Both modems must be configured the same in order to connect. If one of the modems does not support Fast Call, change the default setting to Off.

•DTE Rate. For better link utilization and throughput, higher values than the default may be appropriate. (Refer to the DTE Rate description in Appendix A.) Refer to “Optimizing Network Performance” in the preceding section for more information.

•Flow/TpDlyMin. The default options assume the DTE can accept nondisruptive clock stoppage. For DTEs that cannot handle Rx/Tx clock stoppage without disrupting data, select a different option. In this situation, Telenetics recommends that the default values not be used.

SDC Sample Applications

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

SDC Option Set 1 functions the same as described above for non-SDC modems. Refer to that section for application examples.

SDC Option Set 2—Sync Dial A/B Restoral

Single Channel Point-to-Point Digital Link Restoral (via A/B Switch)

When used as a dial backup device for a digital network, the SDC modem provides economical dial backup and/or disaster recovery, at synchronous speeds matching speeds available on the DDS circuit.

4-22 Configuring the Modem

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.

Telenetics V.32bis Series manual Configuring the Modem for SDC Operation, SDC Sample Applications

Models: 326X V.34 V.32bis Series V.34-SDC