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add/drop multiplexer (SDH) (ADM)

By means of an add/drop multiplexer( ADM), individual channels of an SDH hierarchy with a low bit rate can be taken out of or added to a transmission channel with a high bit rate.

How the add/drop multiplexer works

How the add/drop multiplexer works

An add/drop multiplexer is a type of low-powercross-connect. Such a device can add or drop lower ratetraffic into or out of the aggregated higher rate channel. InPDH systems, by specifying the exact location, in the SDH payload, of the transmission systems used by the Plesiochronous Digital Hierarchy ( PDH), an add/drop multiplexer can access them directly without having to traverse the entire multiplex hierarchy.

Englisch: add/drop multiplexer (SDH) - ADM
Updated at: 23.09.2021
#Words: 104
Links: multiplexer (MPX), adaptive delta modulation (ADM), synchronous digital hierarchy (SDH), hierarchy, bit rate (BR)
Translations: DE

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