Juniper MX480, Hardware Manual

Page: 298 / 420

Replacing an MX480 MPC
1.
Removing an MX480 MPC on page 298
2.
Installing an MX480 MPC on page 300
Removing an MX480 MPC
When you remove an MPC, the router continues to function, although the MIC interfaces
installed on the MPC being removed no longer function.
An MPC installs horizontally in the front of the router. The MPCs are hot-insertable and
hot-removable. A fully configured MPC can weigh up to 18.35 lb (8.3 kg). Be prepared to
accept its full weight.
To remove an MPC (see Figure 126 on page 300 ):
1.
Have ready a replacement MPC or DPC blank panel and an antistatic mat for the MPC.
Also have ready rubber safety caps for each MIC using an optical interface on the MPC
that you are removing.
2.
Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
3.
Label the cables connected to each MIC on the MPC so that you can later reconnect
the cables to the correct MICs.
4.
Use one of the following methods to take the MPC offline:
• Press and hold the corresponding online button on the craft interface. The green
OK/FAIL LED next to the button begins to blink. Hold the button down until the LED
goes off.
•
Issue the following CLI command:
user@host> request chassis fpc slot slot-number offline
For more information about the command, see the CLI Explorer .
5.
Disconnect the cables from the MICs installed in the MPC.
WARNING: Do not look directly into a fiber-optic transceiver or into the
ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables
connected to a transceiver emit laser light that can damage your eyes.
CAUTION: Do not leave a fiber-optic transceiver uncovered except when
inserting or removing a cable. The safety cap keeps the port clean and
prevents accidental exposure to laser light.
Copyright © 2019, Juniper Networks, Inc. 298
MX480 Universal Routing Platform Hardware Guide