Juniper Networks M160 manual Removing an FPC

M160 Internet Router Hardware Guide

Installing an FPC on page 172

Removing an FPC

To remove an FPC, follow this procedure (see Figure 87):

1.Place an antistatic mat on a flat, stable surface to receive the FPC. If you are removing 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.

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. Make sure the router is attached to a proper earth ground. For more information about ESD, see “Preventing Electrostatic Discharge Damage” on page 226.

3.Label the cables connected to each PIC on the FPC so that you can later reconnect the cables to the correct PICs.

4.Use one of the following methods to take the FPC offline:

Press and hold the FPC offline button. The green OK LED next to the button begins 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 following CLI command:

user@host>request chassis fpc slot slot-numberoffline

For more information about the command, see the JUNOS Internet Software Operational Mode Command Reference: Protocols, Class of Service, Chassis, and Management.

5.Disconnect the cables from the PICs installed in the FPC. If a PIC uses fiber-optic 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 the ends of fiber-optic cables or into the transceivers on the interface faceplate. Single-mode fiber-optic cable and the interfaces that use it (such as ATM and SONET/SDH interfaces) emit laser light that can damage your eyes.

170 Replacing Packet Forwarding Engine Components