Ipx

Glossary

interworking

Communication between two types of networks or end equipment. This may or may not involve a difference in signalling or protocol elements supported.

Internet Protocol

A TCP/IP protocol describing software that tracks the Internet address of nodes, routes outgoing message, and recognizes incoming messages. Used in gateways to connect networks at OSI network Level 3 and above.

Internetwork Packet Exchange. A Novell NetWare protocol used to move in- formation across networks.

ISDN

Integrated Services Digital Network. A network architecture that enables end- to-end digital connections. The network supports diverse services through in- tegrated access arrangements and defines a limited set of standard, multipur- pose interfaces for equipment vendors, network providers, and customers.

Interworking with a public switched telephone network is retained.

jabber

An error condition in which a network device continually transmits garbage onto the network. In IEEE 802.3, a data packet whose length exceeds that pre- scribed in the standard.

jitter

The slight movement of a transmission signal in time or phase that can intro- duce errors and loss of synchronization for high-speed synchronous commu- nications. See phase jitter.

LATA

Local Access and Transport Area. One of 161 local telephone serving areas in the United States, generally encompassing the largest standard statistical met- ropolitan areas. Subdivisions established as a result of the AT&T divestiture that now distinguish local from long distance service. Circuits with both end- points within the LATA (intraLATA) are generally the sole responsibility of the local telephone company, while circuits that cross outside the LATA (in- terLATA) are passed on to an interexchange carrier.

loopback

A diagnostic procedure where data is sent to the device being tested, and the output of the device is fed directly back to its input, looped around, and the returning data is checked against that which was sent.

Media Access Control (MAC)

As defined by the IEEE, the lower of the two sublayers of the OSI reference model data link layer. The MAC sublayer is concerned with media access is- sues, such as whether token passing or contention is used.

152

Express XL/XLT User Manual

61200070L1-1

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.

ADTRAN Express XLT user manual Ipx

Models: Express XLT Express XL