Maintenance
5–2
Copyright © 2002 Harmonic Inc.
5.1.1
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 4-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 across the paper from the
wet part to the dry part.
5.1.2
Cleaning Transmitter Module Optical Connectors
Follow these steps to properly clean the optical connector of a PWRLink II
transmitter module:
1. Remove the transmitter module from the HLP 4200 platform.
2. Remove the optical connector plate, including the Optical Out shutter, by
unscrewing the two screws. See Figure 1-1 on page 1-2.
3. Pull the connector plate away, removing it
no more than 3 inches
from the
back plate of the unit, and release the internal optical connector from the
internal bulkhead adaptor.
Pulling the connector out more than 3 inches may
cause breakage of the fiber.
The end of the internal fiber connector can now be cleaned.
4. Fold a piece of unused dry lens cleaning paper twice, for a 4-ply thickness.
5. Use a drop of high-grade isopropyl alcohol to wet part of the paper.
6. Lay the connector on the lens cleaning paper with the tip touching the
paper.
7. In one continuous motion, pull the connector across the paper from the
wet part to the dry part.
8. Once the cleaning is complete, re-insert the internal fiber connector into
the bulkhead adaptor and press the two parts together carefully.
9. Carefully replace the connector plate.
10. Screw the two plate screws back in the Optical Out shutter.