Allied Telesis AT-MCF2300 - Manual (Page 185)

AT-MCF2000 Media Converter Series Installation Guide
185
2. If desired, repeat step 1.
3. If a fiber inspection scope is available, use the scope to inspect the
connector to make sure that it is clean and to check for scratches, pits,
or other problems that may affect performance.
Note
Always keep a dust cap on a fiber optic cable when it is not in use.
Note
Do not touch the end face of the ferrule in the connector.