Juniper MX2010 Hardware Manual page 624

Universal routing platform

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Keep the cable connections clean and free of dust and other particles, which can cause drops in the

received power level. Always inspect cables and clean them, if necessary, before connecting an interface.

Label both ends of the cables to identify them.

The following guidelines apply specifically to fiber-optic cables:

When you unplug a fiber-optic cable, always place a rubber safety plug over the transceiver on the

faceplate and on the end of the cable.

Anchor fiber-optic cables to avoid stress on the connectors. Be sure to secure fiber-optic cables so that

they do not support their own weight as they hang to the floor. Never let fiber-optic cable hang free

from the connector.

Avoid bending fiber-optic cable beyond its bend radius. An arc smaller than a few inches can damage

the cable and cause problems that are difficult to diagnose.

Frequent plugging and unplugging of fiber-optic cable into and out of optical instruments can cause

damage to the instruments that is expensive to repair. Instead, attach a short fiber extension to the

optical equipment. Any wear and tear due to frequent plugging and unplugging is then absorbed by the

short fiber extension, which is easy and inexpensive to replace.

Keep fiber-optic cable connections clean. Small microdeposits of oil and dust in the canal of the transceiver

or cable connector could cause loss of light, reducing signal power and possibly causing intermittent

problems with the optical connection.

To clean the transceivers, use an appropriate fiber-cleaning device, such as RIFOCS Fiber Optic Adaptor

Cleaning Wands (part number 946). Follow the directions for the cleaning kit you use.

After you clean an optical transceiver, make sure that the connector tip of the fiber-optic cable is clean.

Use only an approved alcohol-free fiber-optic cable cleaning kit, such as the Opptex Cletop-S Fiber

Cleaner. Follow the directions for the cleaning kit you use.

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Troubleshooting