• Maintaining the MX5, MX10, MX40, and MX80 Power Supplies on page 161
• Maintaining the MX5, MX10, MX40, and MX80 Routing Engine on page 162
Maintaining the MX5, MX10, MX40, and MX80 Air Filter
Purpose For optimum cooling, verify the condition of the air filter.
Action Regularly inspect the air filter. A dirty air filter restricts airflow in the unit, producing a
negative effect on the ventilation of the chassis. The filter degrades over time. You
must replace the filter every 6 months.
•
CAUTION: Always keep the air filter in place while the device is operating.
Because the fans are very powerful, they could pull small bits of wire or
other materials into the through the unfiltered air intake.This could damage
the components.
• The shelf life of polyurethane filter varies from two years to five years depending on
the storage conditions. Store in a cool, dry, and dark environment. Wrap the media in
plastic and store in an environment with relative humidity between 40%- 80% and
temperature between 40° F (4° C) to 90° F (32° C). Note that if the material flakes,
or becomes brittle when rubbed or deformed, it is no longer usable.
Related
Documentation
MX5, MX10, MX40, and MX80 Cooling System Description on page 19•
• Replacing an MX5, MX10, MX40, and MX80 Air Filter on page 108
Maintaining the MX5, MX10, MX40, and MX80 Fan Tray
Purpose For optimum cooling, verify the condition of the fans.
Action Monitor the status of the fans. A fan tray contains multiple fans that work in unison to
cool the router components. If one fan fails, the router adjusts the speed of the
•
remaining fans to maintain proper cooling. A red alarm is triggered when a fan fails,
and a yellow alarm and red alarm are triggered when a fan tray is removed.
• To display the status of the cooling system, issue the show chassis environment
command. The output is similar to the following:
user@host> show chassis environment
Class Item Status Measurement
Temp PEM 0 OK 45 degrees C / 113 degrees F
PEM 1 OK 45 degrees C / 113 degrees F
RE 0 Intake OK 33 degrees C / 91 degrees F
RE 0 Front Exhaust OK 38 degrees C / 100 degrees F
RE 0 Rear Exhaust OK 38 degrees C / 100 degrees F
Copyright © 2017, Juniper Networks, Inc.158
MX5, MX10, MX40, and MX80 3D Universal Edge Router Hardware Guide
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