Maintain Transceivers And Optical Cables - Cisco NCS 5700 Series Hardware Installation Manual

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Maintain Transceivers and Optical Cables

Transceivers and fiber-optic cables must be kept clean and free of dust to maintain high signal accuracy and
to 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:
• Transceivers are static sensitive. To prevent ESD damage, wear an ESD-preventative wrist strap that is
• Do not remove and insert a transceiver any more than is necessary. Repeated removals and insertions
• Keep all optical connections covered when not in use. Clean them before use to prevent dust from
• Do not touch the ends of connectors. Touching the ends would leave fingerprints and cause other
• Clean the connectors regularly; the required frequency of cleaning depends upon the environment. In
• Inspect routinely for dust and damage. Clean and then inspect fiber ends under a microscope to determine
10 MHz (Input and Output)
Input—AC coupled
Output—5 nanoseconds
connected to the grounded chassis.
can shorten its useful life.
scratching the fiber-optic cable ends.
contamination.
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.
whether any damage has occurred.
Hardware Installation Guide for Cisco NCS 5700 Series Fixed-Port Routers

Maintain Transceivers and Optical Cables

1PPS (Input and Output)
40 nanoseconds
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