synchronous digital hierarchy वाक्य
उदाहरण वाक्य
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- Based on Synchronous Digital Hierarchy ( SDH ) and Pleisochronous Digital Hierarchy ( PDH ) technology, the transmission infrastructure would also enable the company to enhance the quality of its voice, data and video transmissions.
- The Telephone Organization of Thailand _ TOT _ will first try to renegotiate the contracts with the six suppliers for the Synchronous Digital Hierarchy project, the agency's chairman, Mechai Viravaidya, was quoted as saying in reports Thursday.
- A few years before a new standard for optical transmission systems called Synchronous Digital Hierarchy ( SDH ) had been developed and ratified as a global standard as a replacement for existing Plesiochronous Digital Hierarchy ( PDH ) equipment.
- EoPDH is based on a collection of technologies and standards that allow telecommunications Carriers to make use of their extensive networks of legacy PDH and SONET / SDH ( Synchronous Digital Hierarchy ) equipment to provide new Ethernet services.
- Tejas optical netowrking products are based on Dense Wave Division Multiplexing ( DWDM ), Optical Transport Networks ( OTN ), Packet Transport Networks ( PTN ) and Synchronous Digital Hierarchy ( SDH ) or synchronous optical networking ( SONET ) Technology.
- Transport networks, the underlying optical fiber-based layer of telecommunications networks, have evolved from DCS ( Digital Cross-connect system )-based mesh architectures in the 1980s, to SONET / SDH ( Synchronous Optical Networking / Synchronous Digital Hierarchy ) ring architectures in the 1990s.
- The NDTN is the only major alternative telecommunications backbone in the Philippines, the other being operated by PLDT . The network also includes RCPI's existing Synchronous Digital Hierarchy ( SDH ) microwave network with spur links that also extends from Luzon to Mindanao.
- The article talks about optical fibre, the standards for transmission across optical fibre ( Synchronous Optical Networking and Synchronous Digital Hierarchy ), the various standards for digital broadcasts ( ATSC, DVB and ISDB ), the various protocols used in LANs and the Internet, etc.
- Backbone transport networks replaced PDH networks with synchronous digital hierarchy ( SDH ) or synchronous optical networking ( SONET ) equipment over the ten years ending around the turn of the millennium ( 2000 ), whose floating payloads relaxed the more stringent timing requirements of PDH network technology.
- These resources consisted of a 2, 200, 000 km long nationwide optical network, based on Asynchronous Transfer Mode ( ATM ), Synchronous Digital Hierarchy ( SDH ) and Dense Wavelength Division Multiplexing ( DWDM ) technologies and several submarine cables, in particular with the USA, Japan, Germany and Russia.
- It is in length and uses Wavelength Division Multiplexing ( " WDM " ) technology with Synchronous Digital Hierarchy ( " SDH " ) transmission to increase capacity and enhance the quality of the signal, especially over long distances ( this cable stretches from North Germany to Australia and Japan ).
- Synchronous Optical Networking ( SONET, in the U . S . and Canada ) and Synchronous Digital Hierarchy ( SDH, in the rest of the world ) are the standard multiplexing protocols used to carry high-data-rate digital bit-streams over optical fiber using lasers or highly coherent light from light-emitting diodes ( LEDs ).
- The infrastructure components which Telekom will instal include both copper and fibre optic cables to support high bandwidth multimedia communications and synchronous digital hierarchy ( SDH ) transmission; systems equipment; public switch telephone network ( PSTN ) and integrated service digital network ( ISDN ) switches; a trunk network system; asynchronous transfer mode ( ATM ) core; and access switches and a customer access network.
- At the time of the design of ATM, 155 Mbit / s Synchronous Digital Hierarchy ( SDH ) with 135 Mbit / s payload was considered a fast optical network link, and many plesiochronous digital hierarchy ( PDH ) links in the digital network were considerably slower, ranging from 1.544 to 45 Mbit / s in the USA, and 2 to 34 Mbit / s in Europe.
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