Network Router User Manual

CHAPTER
1-1
Cisco CRS-1 Carrier Routing System Fiber-Optic Cleaning Guide
OL-8179-02
1
Overview
The Cisco CRS-1 fiber-optic cleaning kit is used to clean all multiferrule (MT) optics in a Cisco CRS-1
Carrier Routing System Multishelf System using the Cisco CRS-1 fiber-optic cleaning kit. This kit
cleans all optics on the S2 module, S13 module, optical interface module (OIM), and optical array
cables.
The cleaning tool included in the kit advances a continuous roll of lint-free cleaning cloth across the face
of the optic. The adapters included in the kit ensure that the cleaning tool is inserted at the proper angle
and depth. Follow all instructions carefully to ensure that each optical connector is clean and free of all
contaminants. This chapter provides an overview of the fiber-optic connections in the Cisco CRS-1
multishelf system; be sure to review it carefully before you begin cleaning your fiber-optic connectors.
This chapter presents the following topics:
• Inspection and Cleaning, page 1-1
• General Reminders and Warnings, page 1-2
• Fiber-Optic Connectors in a Multishelf System, page 1-2
• About the Cisco CRS-1 Fiber-Optic Cleaning Kit, page 1-5
• Using the Fujikura IBC Cleaning Tool, page 1-9
Inspection and Cleaning
Fiber-optic connectors must be properly cleaned to eliminate any dust or contamination. Even
microscopic dust particles can cause failure of a component or the whole system. In addition to dust,
other contaminants, such as oils (frequently from human hands), film residues (condensed from vapors
in the air), and powdery coatings (left after water or other solvents evaporate), must be cleaned from the
end face. These contaminants can be more difficult to remove than dust particles and can also cause
damage to equipment if not removed.
All these contaminants are cleaned using the Cisco CRS-1 fiber-optic cleaning kit, as described in this
guide.
Caution Use extreme care when removing or installing connectors so that you do not damage the connector
housing or scratch the end face of the fiber. Always install protective covers on unused or disconnected
components to prevent contamination. Always clean fiber connectors before installing them.