Maintain Transceivers and Optical Cables
To maintain high signal accuracy and to prevent damage to the connectors, transceivers and fiber-optic cables
must be kept clean and free of dust. Attenuation (loss of light) is increased by contamination and should be
below 0.35 dB.
Consider the following maintenance guidelines:
• Transceivers are static sensitive. To prevent ESD damage, wear an ESD-preventative wrist strap that is
connected to the grounded chassis.
• Do not remove and insert a transceiver more than it is necessary. Repeated removals and insertions can
shorten its useful life.
• Keep all optical connections covered when not in use. Clean them before use to prevent dust from
scratching the fiber-optic cable ends.
• Do not touch the ends of connectors. Touching the ends would leave fingerprints and cause other
contamination.
• Clean the connectors regularly; the required frequency of cleaning depends upon the environment. In
addition, clean connectors if they are exposed to dust or have been accidentally touched. Both wet and
dry cleaning techniques can be effective; refer to your site's fiber-optic connection cleaning procedures.
• Inspect routinely for dust and damage. Clean and then inspect fiber ends under a microscope to determine
whether any damage has occurred.
Cisco Network Convergence System 540 Large Density Routers Hardware Installation Guide
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Install the Device
Maintain Transceivers and Optical Cables
