Harmonic MAXLink HOA 7100 Series, Руководство по эксплуатации продукта

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Maintenance and Troubleshooting
6–2 Copyright © 2004 Harmonic Inc.
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, Harmonic recommends 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
thickness.
2. Use a drop of high-grade isopropyl alcohol to wet part of the paper.
3. Lay the connector on the lens cleaning paper with the tip touching the
paper.
4. In one continuous motion, pull the connector from the wet part of the
paper to the dry part.
6.1.2 Cleaning MAXLink Amplifier Optical Connectors
To clean the optical connector of a MAXLink amplifier:
1. Unscrew the locking screw on the fiber tray.
The fiber tray and locking screw are located on the rear panel of the
amplifier, as shown in Section
3.4 Rear Panel Diagrams on page 3-3.
2. Pull the handle to open the fiber tray.
3. Disengage spiral tubing from u-clip on fiber tray.
4. Release the internal optical connector from the internal bulkhead adaptor.
The end of the internal fiber connector can now be cleaned.
CAUTION: When releasing the optical connector from the bulkhead adaptor,
take care to keep the spiral tubing from sliding into the chassis.
CAUTION: When the fiber connector is extended from the unit, take care to
prevent twisting or rotating the connector in order to prevent
possible fiber damage.
5. Fold a piece of unused dry lens cleaning paper twice, for a four-ply
thickness.
6. Use a drop of high-grade isopropyl alcohol to wet part of the paper.