Chapter 3: Terminal Menu Operation and Structure

Dial Out/Initial Channels

Write security: 3; Read security: 5

This is the number of B-channels to dial-up on the initial connection. Possible choices are 1 (def) and 2.

Connection List/Bandwidth

The bandwidth parameters that govern this connection are set here.

Bandwidth/On Demand

The parameters under this menu control the data rates required to change bandwidth.

Bandwidth/Mode Write security: 3; Read security: 5

When this option is set to On, the Express XL/XLT will apply its bandwidth- on-demand features for this Connection List profile. If set to Off, none are per- formed.

Bandwidth/Idle Timeout Write security: 3; Read security: 5

This is the number of seconds the ISDN line must be idle before hanging up this connection. A value of 0 (def) means the Express XL/XLT will never drop the link based on the idle timer. The range is 0 to 255.

Bandwidth/Preempt Time Write security: 3; Read security: 5

Occasionally an application will require to connect to a different location be- fore the current connection’s idle timer has timed out. This causes the appli- cation to have to wait for idle timer before it can use the B-channel. This preempt time allows the Connection List that is active to be dropped sooner than the normal idle time. The value ranges from 0 to 255 and is in seconds. When bandwidth is needed for another application, the idle timer is compared to this preempt time. If the idle timer is greater, the connection is preempted. If set to 255 (def), the connection is never preempted. If set to 0, the connection is disconnected immediately when another application is requested.

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ADTRAN Express XLT user manual Dial Out/Initial Channels, Connection List/Bandwidth, Bandwidth/On Demand

Express XLT, Express XL specifications

ADTRAN has established itself as a leading provider of telecommunications solutions, and among its impressive lineup, the ADTRAN Express XL and Express XLT stand out as robust offerings designed for the evolving demands of modern networks. These devices cater to service providers and enterprises looking to enhance their broadband delivery capabilities while ensuring cost-efficiency and reliability.

The ADTRAN Express XL is a high-capacity, next-generation fiber optic access platform. It is engineered to support a wide array of technologies, including Passive Optical Network (PON) standards such as GPON and XGSPON. The Express XL's architecture allows for seamless scalability, making it a perfect fit for both small-scale deployments and expansive network rollouts. What sets it apart is its ability to deliver ultra-fast broadband services to residential, business, and mobile backhaul customers with its impressive throughput capabilities.

On the other hand, the Express XLT builds upon the success of the Express XL by incorporating advanced features aimed at maximizing operational efficiency. It supports technologies including Active Ethernet and offers flexible network configurations to meet specific service requirements. Both models utilize ADTRAN’s innovative Dynamic Bandwidth Allocation technology, which dynamically allocates bandwidth to users based on real-time demand, ensuring optimal performance and user satisfaction.

A key characteristic of both ADTRAN Express XL and XLT is their energy efficiency. Designed to minimize operational costs, these units use power-saving technologies that reduce energy consumption without compromising performance. Furthermore, they include built-in support for network functions virtualization (NFV) and software-defined networking (SDN), providing operators with the agility to adapt their networks in response to changing market conditions.

In addition to their advanced technological underpinnings, the Express XL and XLT boast an intuitive management interface, simplifying network monitoring and management tasks. They also feature comprehensive telemetry and analytics capabilities that help operators gain insights into network performance, optimize configurations, and troubleshoot potential issues before they affect end users.

Ultimately, the ADTRAN Express XL and Express XLT are pivotal components for service providers aiming to deliver high-speed broadband services effectively. With their blend of flexibility, scalability, and energy efficiency, these access platforms are well-positioned to meet the current and future demands of telecommunications networks worldwide.