PROFINET Installation Guideline for Cabling and Assembly

PROFINET cable assembly work
The next steps describe the generic steps for optical face cleaning of connectors
• Use a lint free wipe moistened with isopropyl alcohol or optical quality
cleaning fluid to clean the end faces. Rub lightly the ferule on the wipe.
Always wipe in one direction not back and forth.
• Re-inspect the end faces with a fiber optic video probe or a hand held fiber
optic microscope and verify that the contamination has been removed.
Refer to the former paragraph about inspection.
• If the contamination is still present, after repeated attempts to clean the
ferrules have failed, the contacts must re-polished or replaced. Polishing is
a delicate step. It must be made by qualified persons. Contact the
connector manufacturer.
2.2.5 Fiber optic cable
Glass or plastic fiber optic cables have a number of outstanding properties:
• Total immunity to electromagnetic interference.
• Total electrical isolation of connected devices.
• Largely tap-proof.
• Extremely low attenuation when using glass fibers, therefore longer
transmission distances.
Due to these properties, they are particularly well suited for:
• Cabling outside of buildings
• Long distances
• Environments subject to heavy electromagnetic interference
The following categories exist
• Glass fiber optic cables: single mode (SM) and multi mode (MM)
• Plastic Cladded Fiber (PCF))
• Plastic Optical Fiber (POF)
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