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 online/offline button. The green OK LED next to the button
begins to blink. Hold the button down until the LED goes off. The LEDs and
online/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-number offline
For more information about the command, see the CLI Explorer.
NOTE: The slot number corresponds to the lowest numbered slot for
which the FPC is installed.
5. Disconnect the cables from the PICs installed in the FPC.
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
inserting or removing cable. The safety cap keeps the port clean and
prevents accidental exposure to laser light.
CAUTION: Avoid bending fiber-optic cable beyond its minimum bend
radius.An arcsmaller than a few inches in diameter can damage the cable
and cause problems that are difficult to diagnose.
6. If a PIC uses fiber-optic cable, immediately cover each transceiver and the end of each
cable with a rubber safety cap.
7. Simultaneously turn both the ejector handles counterclockwise to unseat the FPC.
8. Grasp the handles and slide the FPC straight out of the card cage halfway.
9. Place one hand around the front of the FPC (the PIC housing) and the other hand
under it to support it. Slide the FPC completely out of the chassis, and place it on the
antistatic mat or in the electrostatic bag.
303Copyright © 2017, Juniper Networks, Inc.
Chapter 25: Replacing Line Card Components
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