Juniper MX240 Hardware Manual page 328

WARNING:
of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables connected
to a transceiver emit laser light that can damage your eyes.
CAUTION:
inserting or removing a cable. The safety cap keeps the port clean and prevents
accidental exposure to laser light.
CAUTION:
An arc smaller 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.
CAUTION:
to accept the full weight—up to 18 lb (8.2 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, bus
bars, 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.
10. If necessary, remove each installed PIC from the FPC.
Do not look directly into a fiber-optic transceiver or into the ends
Do not leave a fiber-optic transceiver uncovered except when
Avoid bending a fiber-optic cable beyond its minimum bend radius.
The weight of the FPC is concentrated in the back end. Be prepared
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