Manual

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CHAPTER 7
Wiring test on fibre-optic conductors and SFP modules
7.1. Safety precautions
ATTENTION!
Never look directly into the socket of the SFP module, at connector surfaces, open fibre ends or
into connectors. The danger exists that light in the non-visible spectrum could be emitted and
permanently damage your eyes.
If you are not sure whether the device is switched on or if the fibre is conducting light, always be on
the safe side and assume that light could be emitted.
Treat open fibres properly; fibre splinters can pose an injury hazard.
Protect your eyes when working on open fibres; fibre splinters can cause permanent eye damage.
Never leave fibre remnants lying around open and never dispose of such remnants loose with
domestic wastes; the fibre splinters pose an injury hazard.
Before cleaning SFP modules, we recommend removing them from the instrument. This ensures
that light cannot be admitted inadvertently during the cleaning process.
CAUTION!
Observe the maximum measuring range when connecting SFP modules to a light conducting link
(see specifications for individual SFP modules). Exceeding this distance can lead to damage to the
SFP modules.
7.2. Instructions for cleaning SFP modules and patch cables
NOTE:
Before connecting the measuring cables to the SFP modules, ensure that the connectors on the
measuring cables are clean.
Clean the ferrule on the SFP sockets with dry, lint-free, non-scratching materials.
The connectors can be cleaned with suitable fibre-glass cleaning cloths or cleaning swabs. TREND
recommends cleaning set #1219-00-1621 for care of the SFP modules and patch cables.