Keysight M8121A User Manual page 37

Keysight M8121A Arbitrary Waveform Generator User Guide
Guidelines
• Use a fiber-optic inspection scope to visually inspect the fiber-optic
end.
• Always remove both ends of fiber-optic cables from any instrument,
system, or device before visually inspecting the fiber ends. Disable all
optical sources before disconnecting fiber-optic cables. Failure to do
so may result in permanent injury to your eyes.
• Keep all fiber-optic connectors clean using professional fiber-optic
cleaning products. Many products are available and are easily located
via an Internet search on "fiber optic cleaning products". You can
purchase tools designed specifically for the type of fiber-optic
connector that you are using. For the 24-fiber MPO interface, purchase
one for MPO II – MTP
• Never use metal or sharp objects to clean a connector and never
scrape the connector.
This picture shows physical damage to the glass fiber end of the optical
cable caused by either repeated connections made without removing
loose particles from the fiber end or by using improper cleaning
processes.
This damage can be severe enough to transfer the damage from the
connector end to a good connector with which it comes in contact.
The cure for these problems is disciplined connector care. Visual
inspection of fiber ends can be helpful. Contamination or imperfections
on the cable end face can be detected as well as cracks or chips in the
fiber itself. Use a microscope to inspect the entire end face for
contamination, scratches on the fiber core, raised metal or dents, and any
other imperfections.
Visible imperfections not touching the fiber core may not affect
performance unless the imperfections keep the fibers from contacting.
®
Brand Connectors.
Installation and Maintenance 2
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