A Network Timing Concept for Switzerland

Abstract

Studies on network timing started in Switzerland in 1974, pre paring the future conversion to digital transmission and switching, stimulated by the development of integrated electronics. First generation equipment was specified and developed in 1975/76, when early international standards recommending 10-11 long term stability were drafted. Further work led to the present network timing concept in which the network is divided into 3 regions, each cesium-controlled in a preselected master-slave mode with 4 levels of hierarchy. All major (2nd order) nodes are served by triple-redundant, microprocessor-controlled precision crystal oscillators. The third order level is constituted by the digital switching centers.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1985
Accession Number
ADA494730

Entities

People

  • Paul Voros
  • Peter Kartaschoff
  • Pierre A. Probst

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Amplifiers
  • Classification
  • Clocks
  • Crystal Oscillators
  • Demographic Cohorts
  • Electronic Equipment
  • Frequency
  • Hierarchies
  • Information Operations
  • Oscillators
  • Power Supplies
  • Standards
  • Switching
  • Switzerland
  • Time Intervals

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Positioning, Navigation, and Timing (PNT) Technology.
  • Systems Analysis and Design

Technology Areas

  • Microelectronics