Juniper Networks MX480 - Manual (Page 214)

Related
Documentation
Routing Engine Interface Cable and Wire Specifications for MX Series Routers on
page 310 •
• Preventing Electrostatic Discharge Damage to an MX480 Router on page 248
• Replacing an MX480 Routing Engine on page 184
Replacing an MX480 DPC
1. Removing an MX480 DPC on page 190
2. Installing an MX480 DPC on page 192
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 96 on page 192 ):
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 electrostatic discharge (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 Junos OS Operational Mode
Commands.
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 cable
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.
Copyright © 2013, Juniper Networks, Inc. 190
MX480 3D Universal Edge Router Hardware Guide