Cisco GS7000 Installation And Operation Manual page 99

WARNING:
Avoid damage to your eyes! Do not look into any optical connector while the
system is active. Even if the unit is off, there may still be hazardous optical
levels present.
Note: Read the above warning before performing cleaning procedures.
Cleaning Connectors
It is important that all external jumper connectors be cleaned before inserting them
into the optical module. Follow these steps to clean fiber optic connectors that will be
connected to the optical module:
Important: Before you begin, remove optical power from the module or ensure that
optical power has been removed.
1 Inspect the connector through an optical connector scope. If the connector is
damaged, e.g., scratched, burned, etc., replace the jumper.
2 If the connector is dirty but otherwise undamaged, clean the connector as
follows:
a Make several swipes across the face of the connector with the appropriate
ferrule cleaner. This will remove dust and some films.
b Listen for a slight "squeak" typically generated during this process, indicating
a clean connector.
c Inspect the connector again through the scope to confirm that it is clean.
3 If a second inspection indicates that further cleaning is needed:
a Use 99% isopropyl alcohol and a lint-free wipe to clean the connector.
b Use the appropriate ferrule cleaner again to remove any film left over from
the alcohol.
c Inspect the connector again through the scope and confirm that it is clean.
4 If necessary, repeat steps 3a-3c until the connector is clean.
Cleaning Bulkheads
Note: It is generally more difficult to clean bulkhead connectors and verify their
condition due to limited accessibility of the fiber end face. For this reason, even on
products with accessible bulkhead connectors, you should only attempt to clean a
bulkhead connector when a dirty connector is indicated.
Follow these steps to clean the bulkhead:
Care and Cleaning of Optical Connectors
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