4. Verify that each fiber-optic transceiver is covered by a rubber safety cap. If it does not,
cover the transceiver with a safety cap.
5. Orient the DPC so that the faceplate faces you.
6. Lift the DPC into place and carefully align the sides of the DPC with the guides inside
the card cage.
7. Slide the DPC all the way into the card cage until you feel resistance.
8. Grasp both ejector handles and rotate them clockwise simultaneously until the DPC
is fully seated.
Figure 60: Reinstalling a DPC
Reinstalling the FPCs After Installing the MX240 Router with a Lift
To reinstall a DPC (see Figure 61 on page 183):
1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
the strap to one of the ESD points on the chassis.
2. Place the FPC on an antistatic mat or remove it from its electrostatic bag.
3. Identify the two DPC slots on the router where the FPC will be installed.
4. Verify that each fiber-optic transceiver on the PIC is covered by a rubber safety cap.
If it does not, cover the transceiver with a safety cap.
5. Orient the FPC so that the faceplate faces you.
6. Lift the FPC into place and carefully align the sides of the FPC with the guides inside
the card cage.
Copyright © 2017, Juniper Networks, Inc.182
MX240 3D Universal Edge Router Hardware Guide
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