Answer :
Final answer:
The OTDR is vital for checking faults in optical fiber cables, providing precise analysis for troubleshooting network issues.
Explanation:
Optical Time Domain Reflectometer (OTDR) is the device useful for checking optical fiber cables for faults. It works by sending a pulse of light into the fiber and analyzing the light that is reflected back to identify any faults or disruptions in the cable.
OTDRs are essential tools in maintaining and troubleshooting optical fiber networks as they can pinpoint the location and measure the extent of any breaks, bends, or other issues in the cables.
An OTDR is crucial for ensuring the efficient performance of optical communication systems by detecting faults and ensuring minimal signal loss in the fiber optic cables.
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