Troubleshooting
48
61287802F1-34B
Revision B
7.3.1.1
Cleaning Suggestions
Following is a list of suggestions for cleaning connectors, ferrules, and bulkheads:
■ Always maintain dust caps and dust plugs installed when connectors or adapters are not
mated. Store spare dust caps in a zip-lock bag when not in use.
■ Avoid allowing unmated connectors to touch surrounding unrelated surfaces and do not
touch a connector or bulkhead ferrule for any reason other than while performing the
cleaning process.
■ Use a fiberscope or videoscope to verify proper cleaning of connectors prior to mating
connecting components together.
■ Use an appropriate quality fabric type cleaner and pure alcohol (reagent grade, 99.5%
pure) when cleaning the endface of connectors. The alcohol can be applied with either
laboratory grade lint-free tissues or with pre-moistened optical grade wipes.
■ Use microporous fabric spiral wrapped cleaning tips to clean bulkhead ferrules.
■ Do not use compressed air to clean optical bulkheads.
7.3.1.2
Cleaning the Connectors
To clean the connector, complete the following:
1. Wrap the cleaning wipe around the exposed connector endface, apply firm pressure, and
twist the wipe around the ferrule back and forth in quarter to half-turn rotations at least
three times.
2. Press the endface of the ferrule directly into a clean, wet spot on the wipe and twist the
ferrule while applying pressure to perform a wiping action.
3. Inspect the endface of the ferrule with either the fiberscope or videoscope. If further
cleaning is warranted, use the fabric type cleaner to continue cleaning according to the
cleaner instructions. Remember an angle polished connector is in use so refer to that
specific section of the fabric type cleaner’s instructions.
7.3.1.3
Cleaning the Bulkhead
To clean the bulkhead, complete the following:
1. Remove any dust caps or connectors from bulkhead.
2. Insert a new fabric spiral wrapped cleaning tip into the ferrule of the bulkhead.
3. Using your fingers, apply a firm pressure to the cleaner as you twist the cleaner handle
two or three times to create a wiping action of the cleaning tip on the ferrule endface.
4. Discard the cleaning tip after using on a bulkhead.
7.3.2
Signal Level Verification
The following sections detail signal level verification if problems are encountered when service
activation of an installed ONT is performed. Both
“Downstream Signal Level Verification”
“Upstream Signal Level Verification”
on page 49 are discussed.
