Comcast LT1550-E, Инструкция по эксплуатации

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LT1550-E
www.comcast-sa.com
6. Maintenance and Troubleshooting
6.1 Cleaning Fiber Optic Connectors
DANGER: The fiber optic connector carries invisible laser
radiation while working, so should avoid charged
operation.
Dirty optical connectors are the leading source of poor performance in a
broadband optical fiber network. Dirty optical connectors lead to optical signal
loss and reflections, which in turn can seriously degrade signal-to-noise (SNR)
performance and, in some cases, distortion performance. We recommend that
you clean all mating fiber connectors before connecting them to an optical
transmitter.
In addition, if you suspect that the optical connector of LT1550-E may have
been exposed to contamination (by a dirty fiber cable connector, for example),
you should properly clean the LT1550-E optical connector before connecting
the optical fiber.
CAUTION: Improper cleaning of an optical connector can do more
harm than good. Never spray a clean-air product onto
the surface of an optical connector. Spraying air onto
an optical connector can cause condensation on the
connector surface, leaving water spots and trapping
dust. Failing to wipe a connector on dry lens paper
immediately after wiping on paper wet with isopropyl
alcohol can also lead to condensation on the
connector. Using low-grade cleaning paper or other
cloth to wipe an optical connector can leave
microscopic fibers on the optical connector Surface.
6.1.1 Cleaning Patch Cord or Pigtail Fiber Optical Connectors
To clean optical connectors, we recommend using a fiber optic connector
cleaning cartridge (such as NTT Cletop). If a cleaning cartridge is not available,
follow these steps.
To clean the optical connector of a patch cord or pigtail:
1.
Fold a piece of unused dry lens cleaning paper twice, for a four-ply