Juniper MX480, Руководство по оборудованию

Страница: 269 / 420

See Also MX480 DPC Terminology
•
Replacing an MX480 DPC
1.
Removing an MX480 DPC on page 269
2. Installing an MX480 DPC on page 271
Removing an MX480 DPC
A DPC weighs up to 13.1 lb (5.9 kg). Be prepared to accept its full weight.
To remove a DPC (see Figure 111 on page 271 ):
1.
Have ready a replacement DPC or DPC blank panel and an antistatic mat for the DPC.
Also have ready rubber safety caps for each DPC you are removing that uses an optical
interface.
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 port on the DPC so that you can later reconnect
the cables to the correct ports.
4.
Use one of the following methods to take the DPC offline:
•
Press and hold the corresponding DPC online button on the craft interface. The
green
OK
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 DPC.
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
you are inserting or removing cable. The safety cap keeps the port clean
and prevents accidental exposure to laser light.
269 Copyright © 2019, Juniper Networks, Inc.
Chapter 4: Maintaining Components