Alaxala AX6300S Series Instruction Manual page 219

Step 2
Use an optical connector cleaner (reel-type) to clean any dirt from the ferrule tip.
Figure A-5 Cleaning the ferrule tip
CAUTION
CAUTION
NOTE
Always use a dedicated optical connector cleaner. If you use another
type of cleaner, the ferrule tip might be damaged.
Do not apply excessive pressure when cleaning. Doing so might
damage the ferrule tip.
For instructions on how to use the optical connector cleaner, see the
documentation for the optical connector cleaner.
A. Cleaning Optical Connectors
195