COMSPHERE 3800Plus Modems

Table 8-5

(2 of 4)

Leased Line Configuration Options

*LeasedLine Rate: 28800(V34)

Nxt 28800(V34) 33600 31200 26400(V34) 24000(V34) 21600(V34) 19200(V34) 16800(V34) 14400(V34) 12000(V34) 9600(V34) 7200(V34) 4800(V34) 2400(V34)

- OR -

Nxt 19200(V32t) 16800(V32t) 14400(V32b) 12000(V32b) 9600(V32b) 7200(V32b) 4800(V32b)

- OR -

Nxt 2400(V22bis)

- OR -

Nxt 14400(V.33) 12000(V.33) 9600(V.29) 7200(V.29) 4800(V.29)

Leased-Line Rate. Determines the modem's data rate and modulation scheme for operation on leased lines. In Async mode, the DTE rate must equal the leased-line rate. Leased Line Rate sets the upper limit rate and modulation; lower speed connections may still be possible.

What Leased Line Rate configuration options are displayed depends the setting of Modulation.

28800(V34), 33600, 31200, 26400(V34), 24000(V34), 21600(V34), 19200(V34), 16800(V34), 14400(V34), 12000(V34), 9600(V34), 7200(V34), 4800(V34), 2400(V34) ± These modulation schemes are available on 2-wire or 4-wire leased lines. The modem operates using V.34 modulation at the data rate selected. The modem can be forced by the remote modem to a lower data rate. The 33,600 and 31,200 bps rates are Paradyne extensions of the CCITT V.34 recommendation.

19200(V.32t), 16800(V32t), 14400(V.32bis), 12000(V.32bis), 9600 (V.32bis), 7200(V.32bis), 4800(V.32bis) ± These modulation schemes are available on 2-wire or 4-wire leased lines. If a fixed V.32bis rate is selected, the modem can still be commanded to fall back by a remote modem.

2400(V.22bis) ± This modulation scheme is available on 2-wire and 4-wire leased lines.

14400(V.33), 12000(V.33) ± These modulation schemes are available only on 4-wire leased lines, and only with modems that have the optional V.33 Leased-Line feature installed.

9600(V.29), 7200(V.29), 4800(V.29) ± These modulation schemes are available only on 4-wire leased lines, and only with modems that have the optional V.29 Leased-Line feature installed.

NOTE: It is recommended that both modems use the same fixed data rate.

The factory default is 28800(V34).

AT command equivalent is S-register S44=n.

*Autorate: Enable

Nxt Enable Disable

Autorate. The modems adapt to VF line condition and connect at the optimum rate during initial line establishment. Once connected, the modem automatically lowers the line rate if line conditions become impaired. When line conditions improve, the modem automatically shifts up to the highest data rate the line can support. This autorating only occurs between 4800 bps and 19,200 bps during V.32bis and V.32terbo connections and between 2400 bps and 33,600 bps during V.34 connections.

The factory default is Enable.

AT command equivalent is S-register S82=n.

* This configuration option is only available if the Sync Leased factory preset template is selected.

8-28

November 1996

3980-A2-GB30-20

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Paradyne 3800PLUS manual Autorate Enable Nxt Enable Disable
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3800PLUS specifications

The Paradyne 3800PLUS is a sophisticated networking device designed for various applications in high-demand environments, such as telecommunications and enterprise networks. This versatile solution is well-regarded for its robust performance, providing reliable and efficient connectivity for businesses and service providers.

One of the standout features of the Paradyne 3800PLUS is its ability to deliver high-speed data transmission. Supporting multiple protocols, it ensures seamless connectivity for data, voice, and video over the same infrastructure, reducing the need for multiple devices and simplifying network management. The device is capable of supporting both synchronous and asynchronous data formats, making it suitable for diverse networking needs.

With its advanced multiple service options, the Paradyne 3800PLUS supports various connection types, including T1, E1, and DSL, allowing it to adapt to different local area network (LAN) settings. This flexibility makes it a preferred choice for organizations that require support for both legacy systems and modern technologies. Furthermore, the device offers built-in support for various network management protocols, such as SNMP, simplifying monitoring and configuration.

Security is a significant concern in today's networking landscape, and the Paradyne 3800PLUS addresses this with integrated security features that help ensure data integrity and privacy. The device supports encryption and authentication techniques, which protect against unauthorized access and safeguard sensitive information transmitted over the network.

The Paradyne 3800PLUS is also designed with ease of use in mind. Its web-based interface simplifies configuration and management, making it accessible for network administrators regardless of their technical expertise. Additionally, the device is equipped with diagnostic tools and indicators that facilitate troubleshooting, enabling quicker resolution of connectivity issues.

In terms of scalability, the Paradyne 3800PLUS can accommodate the growing needs of businesses and service providers. Its modular design allows for easy upgrades and the addition of new features, ensuring that the network infrastructure can evolve with changing demands.

In summary, the Paradyne 3800PLUS stands out as an advanced networking solution known for its high-speed capabilities, support for various protocols, integrated security measures, user-friendly management interface, and scalability. These characteristics make it an ideal choice for organizations seeking a reliable and efficient networking solution to enhance their operations and support future growth.
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