Juniper T640 Hardware Manual page 321

Copyright © 2013, Juniper Networks, Inc.
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 arc smaller than a few inches in diameter can damage the cable
and cause problems that are difficult to diagnose.
If you are removing a Type 2 FPC or Type 3 FPC, loosen the screws inside the ejector
6.
handles at the top and bottom of the FPC faceplate.
Simultaneously turn both the ejector handles counterclockwise to unseat the FPC.
7.
Grasp the handles, and slide the FPC straight out of the card cage halfway.
8.
Place one hand around the front of the FPC (the PIC housing) and the other hand
9.
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.
CAUTION: The weight of the FPC is concentrated in the back end. Be
prepared to accept the full weight—up to 32 lb (14.5 kg)—as you slide the
FPC out of the chassis.
When the FPC is out of the chassis, do not hold it by the ejector handles
or edge connectors. They cannot support its weight.
Do not stack FPCs on top of one another after removal. Place each one
individually in an electrostatic bag or on its own antistatic mat on a flat,
stable surface.
If necessary, remove each installed PIC from the FPC. For information about removing
10.
a PIC, see "Removing a T640 PIC" on page
After you remove each PIC, immediately place it on an antistatic mat or in an
11.
electrostatic bag.
If you are not reinstalling a FPC into the emptied FPC slot within a short time, install
12.
a blank FPC panel over the slot to maintain proper airflow in the FPC card cage.
CAUTION: After removing an FPC from the chassis, wait at least 30
seconds before reinserting it, removing an FPC from a different slot, or
inserting an FPC into a different slot.
Chapter 17: Replacing T640 Router Hardware Components
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