- Tech know how online

tributary unit (TU)

In the Synchronous Digital Hierarchy ( SDH), feeder signals can originate from different levels of the Plesiochronous Digital Hierarchy ( PDH). The individual feeder signals are first packed into a container nominally synchronous to the STM-1 frame according to an ordering principle.

A Tributary Unit (TU) is a virtual container ( VC) extended with the pointer pointing to it. Tributary Units are grouped into Tributary Units Group (TUG) according to a specific scheme and form an Administrative Unit ( AU).

Englisch: tributary unit - TU
Updated at: 23.03.2007
#Words: 76
Links: indium (In), synchronous digital hierarchy (SDH), plesiochronous digital hierarchy (WAN) (PDH), container, synchronous
Translations: DE

All rights reserved DATACOM Buchverlag GmbH © 2023