Juniper MX480, Hardware Manual

Page: 233 / 420

To replace a cable connected to a management console or auxiliary device:
1.
Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
2.
Press the tab on the connector, and pull the connector straight out of the port.
3.
Disconnect the cable from the console or auxiliary device.
4.
Plug the RJ-45 end of the replacement serial cable into the
CONSOLE
or
AUX
port.
Figure 89 on page 233 shows the external device ports on the Routing Engine.
5.
Plug the female DB-9 end into the console or auxiliary device's serial port.
Figure 89: Auxiliary and Console Ports
Maintaining MX480 Cooling System Components
•
Maintaining the MX480 Air Filter on page 233
•
Replacing the MX480 Air Filter on page 234
• Maintaining the MX480 Fan Tray on page 236
• Replacing the MX480 Fan Tray on page 238
Maintaining the MX480 Air Filter
Purpose For optimum cooling, verify the condition of the air filters.
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.
233 Copyright © 2019, Juniper Networks, Inc.
Chapter 4: Maintaining Components