Transcription of Stratum Levels Defined - Raltron
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Stratum Levels Defined - Raltron
Technical NotesTechnical NotesProduct and Technology Application NotesRaltron Electronics Corporation 10651 NW 19th St. Miami, Florida 33172 : 305-593-6033 Fax: 305-594-3973 e-mail: Internet: Levels DefinedAn American National Standards Institute (ANSI) standard entitled Synchronization Interface Standardsfor Digital Networks ( ) was first released in 1987. This document defines the stratumlevels and minimum performance requirements for digital network synchronization. The requirements forthe Stratum Levels are shown in Table A, which provides a comparison and summary of the drift and sliprates for the strata clock 1 is Defined as a completely autonomous source of timing, which has no other input, other thanperhaps a yearly calibration. The usual source of Stratum 1 timing is an atomic standard (Cesium Beam orHydrogen Maser) or reference oscillator (OCXO). The minimum adjustable range and maximum drift isdefined as a fractional frequency offset f/f of 1 x 10-11 or less.
Technical Notes Product and Technology Application Notes Raltron Electronics Corporation 10651 NW 19th St. Miami, Florida 33172 U.S.A. Tel: 305-593-6033 Fax: 305-594 ...
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