B-15
Catalyst 6500 Series Switch Module Installation Guide
78-15725-02
Appendix B Cable and Connector Specifications
Fiber-Optic Connectors
Always make sure that you insert the connector completely into the socket. This
action is especially important when you are making a connection between a
module and a long distance (1.24 miles [2 kilometers]) or a suspected highly
attenuated network. If the link LED does not light, try removing the network cable
plug and reinserting it firmly into the module socket. It is possible that enough dirt
or skin oils have accumulated on the plug faceplate (around the optical-fiber
openings) to generate significant attenuation, reducing the optical power levels
below threshold levels so that a link cannot be made.
Caution Use extreme care when removing or installing connectors so that you do not
damage the connector housing or scratch the end-face surface of the fiber. Always
install protective covers on unused or disconnected components to prevent
contamination. Always clean fiber connectors before installing them.
For fiber-optic connector cleaning instructions, refer to the “Cleaning the
Fiber-Optic Connectors” section on page B-17.
MT-RJ Connectors
Warning
Invisible laser radiation may be emitted from disconnected fibers or
connectors. Do not stare into beams or view directly with optical instruments.
Statement 1051
The MT-RJ style connector is used on fiber-optic modules to increase port density.
(See Figure B-7.)
Figure B-7 MT-RJ Optical Connector
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