Maintaining And Verifying The Status Of The Mx2020 Router Components - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
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Maintaining and Verifying the Status of the MX2020 Router Components

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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.
Tools and Parts Required to Maintain the MX2020 Hardware Components on page 193
MX2020 Cable Manager Description on page 45
Maintaining MX2020 MPCs on page 375
Maintaining MX2020 MICs on page 374
Maintaining the MX2020 Air Filter on page 341
Maintaining the MX2020 Air Vents on page 341
Maintaining the MX2020 Host Subsystem on page 370
Maintaining the MX2020 Control Boards on page 342
Maintaining the MX2020 Cooling System Components on page 343
Maintaining the MX2020 Cooling System Zones on page 355
Maintaining the MX2020 Fan Trays on page 345
Maintaining the MX2020 Power Supply Modules on page 386
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