Hivatkozási szám

MSZ EN 60512-25-1:2002

Dokumentumazonosító

120390

Cím

Csatlakozók elektronikus berendezésekhez. Vizsgálatok és mérések. 25-1. rész: 25a jelű vizsgálat: Áthallás (IEC 60512-25-1:2001)

Angol cím

Connectors for elec-tronic equipment. Tests and measurements. Part 25-1: Test 25a. Crosstalk ratio (IEC 60512-25-1:2001)

Alkalmazási terület

This part of IEC 60512 applies to interconnect assemblies, such as electrical connectors, sockets and cable assemblies. This standard describes test procedures for measuring the magnitude of the electric and magnetic coupling between driven and quiet lines of an interconnect assembly. Both time domain (method A) and frequency domain methods (method B) for single-ended and differential transmission are described. Insertion and reference fixture techniques are also described. 1.2 Definitions For the purpose of this part of IEC 60512, the following definitions apply. 1.2.1 drive signal a step waveform (in the time domain) or a sinusoidal waveform (in the frequency domain) 1.2.2 crosstalk ratio ratio of the signal coupled (induced) into the quiet signal conductor or conductor pair to the magnitude of the signal in the driven conductor or conductor pair. Both signals have the same units of either voltage or current, and the ratio may be expressed in per cent or decibels (dB) 1.2.3 near end crosstalk ratio (NEXT) crosstalk ratio calculated on the quiet line at or in proximity to the sending (signal source) end of the driven line. This is the ratio of the near end quiet line signal amplitude to the near end driven line signal amplitude 1.2.4 far end crosstalk ratio (FEXT) crosstalk ratio calculated on the quiet line at or in proximity to the receiving (destination) end of the driven line. This is the ratio of the far end quiet line signal amplitude to the near end driven line signal amplitude 1.2.5 measurement system rise time rise time measured with fixture in place, without the specimen, and with filtering (or normalization). Rise time is typically measured from 10 % to 90 % level

ICS

31.220.10 Kártyák. Csatlakozók

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2002-03-01

Forrás

idt EN 60512-25-1:2001; idt IEC 60512-25-1:2001

Előd

Utód

Módosítás

Kiegészítő információk

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

kapható formátuma

Papír ,

oldalszáma

21 oldal; L kategória

ára

Nettó: 10600 Ft
Bruttó:
Papír formátum esetén (5% Áfával): 13356 Ft