digital transmission hierarchy
1Digital transmission group — In telecommunication, a digital transmission group is a group of digitized voice or data channels or both with bit streams that are combined into a single digital bit stream for transmission over communications media. Digital transmission groups… …
2Digital 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… …
3Standardized 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… …
4Digital Signal 0 — (DS0) is a basic digital signaling rate of 64 kbit/s, corresponding to the capacity of one voice frequency equivalent channel.[1] The DS0 rate, and its equivalents E0 and J0, form the basis for the digital multiplex transmission hierarchy in… …
5Digital signature — This article is about secure cryptographic signatures. For simple signatures in digital form, see Electronic signature. A digital signature or digital signature scheme is a mathematical scheme for demonstrating the authenticity of a digital… …
6Digital Earth Reference Model — The term Digital Earth Reference Model (DERM) was coined by Tim Foresman in context with a vision for an all encompassing geospatial platform as an abstract for information flow in support of Al Gore’s vision for a Digital Earth.[1] The Digital… …
7Plesiochronous Digital Hierarchy — The Plesiochronous Digital Hierarchy (PDH) is a technology used in telecommunications networks to transport large quantities of data over digital transport equipment such as fibre optic and microwave radio systems. The term plesiochronous is… …
8Plesiochronous digital hierarchy — Hiérarchie numérique plésiochrone Pile de protocoles 7 • Application 6 • Présentation 5 • Session 4 • …
9Plesiochronous data hierarchy — Hiérarchie numérique plésiochrone Pile de protocoles 7 • Application 6 • Présentation 5 • Session 4 • …
10иерархия цифровой передачи второго порядка — — [http://www.iks media.ru/glossary/index.html?glossid=2400324] Тематики электросвязь, основные понятия EN second order digital transmission hierarchy …
