(synchronous digital

См. также в других словарях:

• Synchronous Digital Hierarchy — Synchronous Digital Hierarchy,   SDH …   Universal-Lexikon

• Synchronous Digital Hierarchy — Die Synchronous Digital Hierarchy (SDH) ist eine der Multiplextechniken im Bereich der Telekommunikation, die das Zusammenfassen von niederratigen Datenströmen zu einem hochratigen Datenstrom erlaubt. Das gesamte Netz ist dabei synchron.… …   Deutsch Wikipedia

• Synchronous Digital Hierarchy — SDH Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. {{{image}}}   Sigles d une seule lettre   Sigles de deux lettres > Sigles de trois lettres …   Wikipédia en Français

• Standardized digital transmission rates for the synchronous digital hierarchy (SDH), the synchronous optical network (SONET), and the optical carrier (OC) hierarchy — ▪ Table Standardized digital transmission rates for the synchronous digital hierarchy (SDH), the synchronous optical network (SONET), and the optical carrier (OC) hierarchy* SDH system SONET system OC level transmission rate in megabits per… …   Universalium

• Synchronous Digital Hierarchy —    Abbreviated SDH. A set of fiber optic based standards from the ITU for use with SONET and ATM in Europe …   Dictionary of networking

• Synchronous optical networking — (SONET) and Synchronous Digital Hierarchy (SDH), are two closely related multiplexing protocols for transferring multiple digital bit streams using lasers or light emitting diodes (LEDs) over the same optical fiber. The method was developed to… …   Wikipedia

• Synchronous Optical Network —    Abbreviated SONET. A set of fiber opticbased communications standards with transmission rates from 51.84Mbps to 13.22Gbps.    First proposed by Bellcore in the mid1980s, SONET was standardized by ANSI, and the ITU adapted SONET in creating the …   Dictionary of networking

• Digital pattern generator — A digital pattern generator is a piece of electronic test equipment or software used to generate digital electronics stimuli. Digital electronics stimuli are a specific kind of electrical waveform varying between two conventional voltages that… …   Wikipedia

• Digital Transmission Hierarchies — In telecommunications, the two following distinct digital hierarchical structures exist: Plesiochronous Digital Hierarchy (PDH) Synchronous Digital Hierarchy (SDH) This article related to telecommunications is a stub. You can help Wikipedia by… …   Wikipedia

• Digital telephony — is the use of digital electronics in the provision of digital telephone services and systems. Since the 1960s a digital core network has almost entirely replaced the old analog system, and much of the access network has also been digitized.… …   Wikipedia

• Digital Research — Inc. DRI Type Subsidiary Industry Computer software Founded Pacific Grove, California (1976) Headquarters …   Wikipedia