TIA/EIA-455-226:2002

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FOTP-226 IEC 61746 Calibration of Optical Time-Domain Reflectometers (OTDR’s)

Published By	Publication Date	Number of Pages
TIA	2002	78

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Description

This International Standard provides procedures for calibrating
single-mode optical time domain reflectometers (OTDRs). It only
covers OTDR measurement errors and uncertainties. It does not cover
correction of the OTDR response.

In order for an OTDR to qualify as a candidate for complete
calibration using this standard, it is to be equipped with the
following minimum feature set:

a) a programmable index of refraction, or equivalent
parameter;

b) the ability to present a display of a trace
representation, with a logarithmic power scale and a linear
distance scale;

c) two markers/cursors, which display the loss and distance
between any two points on a trace display;

d) the ability to measure absolute distance (location) from the
OTDR's zero-distance reference;

e) the ability to measure the displayed power level
relative to a reference level (for example, the clipping
level).

Additional information