The OTDR is used for most
measurements and is more or less the universal fiber optic measuring
instrument. The OTDR is used for quality control of cable on drums and after laying
and for determining splice loss, verification of an installation and fault
tracing.
Modern OTDR instruments allow easy
change of the laser diode module with a flick of a switch, which facilitates
measurements at different wave lengths.
The different fiber parameters
should be verified of the same wavelength as that of the system to be connected
to the installation. For single mode fiber cable, 1550 nm is the most common
wavelength but fibers should be tested at 1310 nm.
As a rule, the instruments have
built in printers that provide a hard copy of measurement results. An external
video plotter can also be connected to an OTDR.
An alternative to a complete OTDR is
an OTDR printed board assembly, which can be installed in most PCs.
Measurements are carried out in the same manner as with an OTDR instrument but
the results are stored in the PC for print out or storage on a diskette.
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Very nice info Thanks for post.....
ReplyDeleteOTDR
Splicing machine
USB OTDR
JDSU OTDR
FIBER OPTIC CABLE
OTDR COST