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• Keep connectors covered when not in use.
• Use dry connections whenever possible.
• Use the cleaning methods described in this section.
• Use care in handling all fiber-optic connectors.
• When inserting a fiber-optic connector into a front-panel adapter, make sure that the fiber end
C A U T I O N
General Information
Cleaning Optical Connectors
Cleaning Optical Connectors
Accurate and repeatable measurements require clean connections. Use the following guidelines
to achieve the best possible performance when making measurements on a fiber-optic system:
does not touch the outside of the mating connector or adapter.
Because of the small size of cores used in optical fibers, care must be used to ensure good con-
nections. Poor connections result from core misalignment, air gaps, damaged fiber ends, contam-
ination, and improper use and removal of index-matching compounds.
Use dry connections. Dry connectors are easier to clean and to keep clean. Dry connections can
be used with physically contacting connectors (for example, Diamond HMS-10, FC/PC, DIN,
and ST). If a dry connection has 40 dB return loss or better, making a wet connection will proba-
bly not improve, and can actually degrade, performance.
Agilent Technologies strongly recommends that index matching compounds not be applied to
their instruments and accessories. Some compounds, such as gels, may be difficult to remove and
can contain damaging particulates. If you think the use of such compounds is necessary, refer to
the compound manufacturer for information on application and cleaning procedures.
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