Fluke DTX-1800 Technical Reference Handbook page 161

•
Avoid touching reflective surfaces (such as metal)
to the end of a fiber cable plugged into the OTDR
when the OTDR is operating. An open fiber
connector end face has about a 4% reflection.
Holding a reflective surface near the connector
end face may cause much greater than a 4%
reflection, which may damage the photodetector
in the OTDR.
•
Read the instructions for splice machines before
using the OTDR to monitor splicing procedures.
The OTDR can interfere with the light injection
detection techniques used by some splicers.
Using the OTDR Module
Safety Information
7
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