Juniper MX240 Hardware Manual page 330

3. Take each PIC to be installed in the replacement FPC out of its electrostatic bag and identify the slot
on the FPC where it will be connected.
4. Verify that each fiber-optic PIC has a rubber safety cap covering the PIC transceiver. If it does not,
cover the transceiver with a safety cap.
5. Install each PIC into the appropriate slot on the FPC.
6. Locate the slots in the card cage in which you plan to install the FPC.
7. Orient the FPC so that the faceplate faces you.
8. Lift the FPC into place and carefully align the sides of the FPC with the guides inside the card cage.
CAUTION:
handles, bus bars, or edge connectors. They cannot support its weight.
9. Slide the FPC all the way into the card cage until you feel resistance.
10. Grasp both ejector handles and rotate them clockwise simultaneously until the FPC is fully seated.
11. If any of the PICs on the FPC connect to fiber-optic cable, remove the rubber safety cap from each
transceiver and cable.
WARNING:
of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables connected
to a transceiver emit laser light that can damage your eyes.
12. Insert the appropriate cable into the cable connector ports on each PIC on the FPC. Secure the cables
so that they are not supporting their own weight. Placing fasteners on a loop helps to maintain its
shape.
CAUTION:
allow the fastened loops of a cable to dangle, which stresses the cable at the
fastening point.
When the FPC is out of the chassis, do not hold it by the ejector
Do not look directly into a fiber-optic transceiver or into the ends
Do not let fiber-optic cables hang free from the connector. Do not
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