When used as a restoral device for Telenetics and Motorola 35XX DSU/CSUs (Figure 4-1), select SDC Option Set 2 in the local and remote SDC Modems. This places the modems in external timing, as digital services typically provide the network timing.

To 33.6 kbps

326XFAST

SDC

To 56 kbps

PSTN

326XFAST

SDC

56/64 kbps

Router

35XX

35XX

Router

NMS

Network Management Channel

Figure 4-1. Single Channel Point-to-Point Digital Link Restoral (A/B Switch)—Option Set 2

Note the following:

•With SDC Option Set 2 selected (for Telenetics, Motorola, non-Telenetics, and non-Motorola DSU/CSUs), the DSUs’ restoral configuration should be set to Timing=Internal.

•In this case, the 326XFAST-SDC DTE Rate must be set to a constant rate as provided by the network (defaults of 56/64 kbps).

•Enable Option Set 2 in both the local and remote modems, and ensure that Mode (AT*SM) is set the same in both modems.

•The SDC modem supports single channel environments only. For example, the SDC modem can restore Port 1 only of the 35XX device.

•The 35XX device, when initiating restoral, must be set to Normal mode (as the 35XX network management channel is virtually a time division multiplexed data stream which cannot be compressed with the SDC product).

•The SDC modem may have the ARS feature enabled. In this case, ARS determines the link rate.

Configuring the Modem

Configuring the Modem 4-23

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Telenetics V.34-SDC, 326X V.34, V.32bis Series manual To 56 kbps
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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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