How To Handle Fiber-Optic Cables - Juniper EX9214 Hardware Manual

LASER WARNING: Do not leave a fiber-optic transceiver uncovered except when
inserting or removing a cable. The rubber safety cap keeps the port clean and protects
your eyes from accidental exposure to laser light.
4. Cover the fiber-optic cable connector with the rubber safety cap.

How to Handle Fiber-Optic Cables

Fiber-optic cables connect to optical transceivers that are installed in Juniper Networks devices.
Follow these guidelines when handling fiber-optic cables:
• When you unplug a fiber-optic cable from a transceiver, place rubber safety caps over the transceiver
and on the end of the cable.
• Anchor fiber-optic cables to prevent stress on the connectors. When attaching a fiber-optic cable to
a transceiver, be sure to secure the fiber-optic cable so that it does not support its own weight as it
hangs to the floor. Never let a fiber-optic cable hang free from the connector.
• Avoid bending fiber-optic cables beyond their minimum bend radius. Bending fiber-optic cables into
arcs smaller than a few inches in diameter can damage the cables and cause problems that are
difficult to diagnose.
• Frequent plugging and unplugging of fiber-optic cables in and out of optical instruments can damage
the instruments, which are expensive to repair. To prevent damage from overuse, attach a short fiber
extension to the optical equipment. The short fiber extension absorbs wear and tear due to frequent
plugging and unplugging, which is easier and less expensive to replace than the instruments.
• Keep fiber-optic cable connections clean. Microdeposits of oil and dust in the canal of the transceiver
or cable connector can cause loss of light, reduction in signal power, and possibly intermittent
problems with the optical connection.
• To clean the transceiver canal, use an appropriate fiber-cleaning device such as RIFOCS Fiber
Optic Adaptor Cleaning Wands (part number 946). Follow the instructions in the cleaning kit you
use.
• After cleaning the 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 instructions in the cleaning kit you use.
276