Replacing An Fpc In An M40E Router; Removing An Fpc In An M40E Router - Juniper M40E Hardware Manual

Replacing an FPC in an M40e Router

Copyright © 2010, Juniper Networks, Inc.
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Replacing an SFM in an M40e Router on page 206
Replacing an SFP in an M40e PIC on page 208
FPCs are hot-removable and hot-insertable, as described in "M40e Field-Replaceable
Units (FRUs)" on page 157. When you remove an FPC, forwarding operations halt for about
200 ms while the Packet Forwarding Engine flushes the shared memory buffers on the
remaining FPCs.
Removing an FPC in an M40e Router on page 191
Installing an FPC in an M40e Router on page 193

Removing an FPC in an M40e Router

To remove an FPC (see Figure 104 on page 193):
Place an antistatic mat on a flat, stable surface to receive the FPC. If you are removing
1.
PICs from the FPC, prepare an antistatic mat or electrostatic bag for each one. If any
of the PICs on the FPC use fiber-optic cable, have ready a rubber safety cap for each
transceiver and cable.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis. For more information about ESD,
see "Preventing Electrostatic Discharge Damage to an M Series, MX Series, or T Series
Router" on page 232.
Label the cables connected to each PIC on the FPC so that you can later reconnect
3.
the cables to the correct PICs.
Use one of the following methods to take the FPC offline:
4.
Press and hold the FPC offline button. The green
to blink. Hold the button down until the LED goes out. The LEDs and offline button
for each FPC are located directly above it on the craft interface.
Issue the CLI command:
user@host>request chassis fpc slot slot-number offline
For more information about the command, see the Junos System Basics and Services
Command Reference.
Disconnect the cables from the PICs installed in the FPC. If a PIC uses fiber-optic
5.
cable, immediately cover each transceiver and the end of each cable with a rubber
safety cap. Arrange the disconnected cables in the cable management system, to
prevent the cables from developing stress points.
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.
Chapter 16: Replacing M40e Hardware Components
OK LED next to the button begins
191