Harmonic MAXLink HOA 7100 Series Product Manual
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Contents
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Maintenance and Troubleshooting6–2 Copyright © 2004 Harmonic Inc.CAUTION: Improper cleaning of an optical connector can do more harmthan good. Never spray a clean-air product onto the surface ofan optical connector. Spraying air onto an optical connector cancause condensation on the connector surface, leaving waterspots and trapping dust. Failing to wipe a connector on dry lenspaper immediately after wiping on paper wet with isopropylalcohol can also lead to condensation on the connector. Usinglow-grade cleaning paper or other cloth to wipe an opticalconnector can leave microscopic fibers on the optical connectorsurface.6.1.1 Cleaning Patch Cord or Pigtail Fiber Optical ConnectorsTo clean optical connectors, Harmonic recommends using a fiber opticconnector cleaning cartridge (such as NTT Cletop). If a cleaning cartridge isnot 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-plythickness.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 thepaper.4. In one continuous motion, pull the connector from the wet part of thepaper to the dry part.6.1.2 Cleaning MAXLink Amplifier Optical ConnectorsTo 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 theamplifier, 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 toprevent twisting or rotating the connector in order to preventpossible fiber damage.5. Fold a piece of unused dry lens cleaning paper twice, for a four-plythickness.6. Use a drop of high-grade isopropyl alcohol to wet part of the paper. |
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