Harmonic HRR 4104, Product Manual

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Maintenance and Troubleshooting
5–2 Copyright © 2005 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 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.
5.1.2 Cleaning HRR 4104 Optical Connectors
To clean the optical connectors of the HRR 4104 receiver:
1. Disconnect the fibers from the optical connectors in the face plate.
2. Use a fiber optic cleaning swab (part number F1-25184 from Fiber
Instrument Sales, or similar) and wet with high-grade isopropyl alcohol.
3. Insert the cleaning swab directly into the adapter until it fully touches the
connector end face inside.
4. Apply light pressure while rotating the swab clockwise one full turn.
5. Insert a second clean (dry) cleaning swab into the adapter until it fully
touches the connector end face inside.
6. Again, apply light pressure while rotating the swab clockwise one full
turn.
7. Reconnect the fibers to the optical connectors.
5.2 Troubleshooting
Should a problem occur, see if the symptoms are listed in Table 5-1.
Table 5-1: Troubleshooting Solutions
Symptom Solution
Platform does not recognize
the HRR 4104 module Verify that the controller cable is connected
between the CPS module and HLP 4200 platform
(see the
CPS 42xx Product Manual ).
Verify that the HRR 4104 module is fully engaged
with the HMC 4008 carrier. Verify that the
HMC 4008 carrier is fully engaged in the
platform.
If that does not correct the problem, contact
Customer Service (see Section 5.3).