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Cisco Nexus 5500 Platform and Cisco Nexus 5000 Platform Hardware Installation Guide
OL-15902-01
Chapter3 Connecting the Switch
Maintaining SFP Transceivers and Fiber-Optic Cables
For instructions on verifying connectivity, see the appropriate Cisco Nexus 5000 Series CLI
Configuration Guide.

Removing a Cable from an SFP Transceiver

Caution When pulling a cable from a transceiver, grip the body of the connector. Do not pull on the jacket sleeve,
because this action can compromise the fiber-optic termination in the connector.
Caution If the cable does not remove easily, ensure that any latch present on the cable has been released before
continuing.
To remove the cable, follow these steps:
Step1 Attach an ESD-preventive wrist strap and follow its instructions for use.
Step2 Press the release latch on the cable, grasp the connector near the connection point, and gently pull the
connector from the transceiver.
Step3 Insert a dust plug into the cable end of the transceiver.
Step4 Insert a dust plug onto the end of the cable.
Maintaining SFP Transceivers and Fiber-Optic Cables
SFP transceivers and fiber-optic cables must be kept clean and dust-free to maintain high signal accuracy
and prevent damage to the connectors. Attenuation (loss of light) is increased by contamination and
should be below 0.35 dB.
Consider the following maintenance guidelines:
•SFP transceivers are static sensitive. To prevent ESD damage, wear an ESD-preventive wrist strap
that is connected to the chassis.
•Do not remove and insert a transceiver more often than is necessary. Repeated removals and
insertions can shorten its useful life.
•Keep all optical connections covered when not in use. If they become dusty, clean before using to
prevent dust from scratching the fiber-optic cable ends.
•Do not touch ends of connectors to prevent fingerprints and other contamination.
•Clean regularly; the required frequency of cleaning depends upon the environment. In addition,
clean connectors if they are exposed to dust or accidentally touched. Both wet and dry cleaning
techniques can be effective; refer to your site’s fiber-optic connection cleaning procedure.
•Inspect routinely for dust and damage. If damage is suspected, clean and then inspect fiber ends
under a microscope to determine if damage has occurred.