Do not stack DPCs 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.
11. If you are not reinstalling a DPC into the emptied DPC slot within a short time, install
a blank DPC panel over the slot to maintain proper airflow in the DPC card cage.
CAUTION: Afterremoving aDPC from the chassis,waitatleast30 seconds
before reinserting it, removing a DPC from a different slot, or inserting a
DPC into a different slot.
Figure 131: Removing a DPC
Installing an MX240 DPC
A DPC weighs up to 14.5 lb (6.6 kg). Be prepared to accept its full weight.
To install a DPC (see Figure 92 on page 236):
1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
2. Place the DPC on an antistatic mat, or remove it from its electrostatic bag.
3. Identify the slot on the router where it will be installed.
4. Verify that each fiber-optic transceiver is covered with a rubber safety cap. If it does
not, cover the transceiver with a safety cap.
5. Orient the DPC so that the faceplate faces youvertically.
299Copyright © 2017, Juniper Networks, Inc.
Chapter 25: Replacing Line Card Components
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