Glossary

strips the frame relay frame off of each frame to produce the original LAN frame, and passes the LAN frame on to the end device. Routers connect multiple LAN segments to each other or to a WAN. Routers route traffic on the Level 3 LAN protocol (e.g., the internet protocol address). See also bridge.

SDLC

synchronous data link control. A link-level communications protocol used in an IBM systems network architecture (SNA) network that manages synchronous, code-transparent, serial information transfer over a link connection. SDLC is a subset of the HDLC protocol developed by ISO.

service

The provision of telecommunications to customers by a common carrier, administration, or private operating agency using voice, data, and/or video technologies.

SNA

systems network architecture. The IBM protocol group which governs mainframe communication.

SNMP

simple network management protocol. A control and reporting scheme widely used to manage devices from different vendors. SNMP operates on top of the internet protocol.

SR

data set ready. A signal on the DTE interface that indicates if the communications is connected and ready to start handshaking control signals so communications can begin.

statistical multiplexing

Interleaving the data input of two or more devices on a single channel or access line for transmission through a frame relay network. Interleaving of data is accomplished using the DLCI.

switched network

The network of dial-up telephone lines using circuit switching to provide communications services to network users.

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ADTRAN 1200214L1, 1204002L1, 1204006L1 user manual Sdlc, 129

1204002L1, 1200214L1, 1204006L1 specifications

ADTRAN, a renowned provider of networking and communications equipment, has developed a range of products designed to enhance telecommunications infrastructure. Among these are the models ADTRAN 1204006L1, 1200214L1, and 1204002L1. Each of these devices combines innovative features and cutting-edge technology to offer robust solutions for modern networking demands.

The ADTRAN 1204006L1 is designed for high-performance fiber optic networking. It supports advanced wavelength-division multiplexing (WDM) technology, enabling multiple data streams to be transmitted simultaneously over a single fiber line. This feature significantly increases network capacity and efficiency, making it ideal for service providers who require a scalable solution. Furthermore, the 1204006L1 includes integrated Ethernet switching capabilities, simplifying network management and reducing operational complexity.

On the other hand, the ADTRAN 1200214L1 focuses on delivering reliable DSL services. This device utilizes VDSL2 technology to provide high-speed internet access over copper lines, making it suitable for both residential and small business applications. The 1200214L1 also features advanced line management capabilities, allowing for improved performance and stability in varying network conditions. With its flexible deployment options, this model can be integrated into existing infrastructures without significant upgrades.

Lastly, the ADTRAN 1204002L1 is a versatile network access device that supports both T1 and Ethernet services. This dual-functionality makes it an exceptional choice for businesses that require a reliable connection for voice and data services. The 1204002L1 is equipped with advanced QoS (Quality of Service) features, ensuring that critical applications receive priority bandwidth. This model also supports carrier-grade reliability, enabling service providers to offer consistent and high-quality services to end-users.

Collectively, these ADTRAN products showcase the company's commitment to innovation and reliability in telecommunications. With their diverse range of technologies—ranging from fiber optics to DSL and T1 services—ADTRAN provides flexible solutions that cater to the needs of various users, from individual consumers to large enterprises. The combination of high-performance capabilities and user-friendly features positions ADTRAN's offerings as essential tools in today’s interconnected world. Businesses can thus leverage these advanced technologies to enhance their connectivity and meet the evolving demands of their customers.