Juniper MX2020 Hardware Manual page 616

Installing the MX2020 Extended EMI Cover
Two extended electromagnetic interference (EMI) covers attach to the router over the upper and lower
card cages.
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. On each side of the upper and lower card cage, orient the extended EMI cover mounting brackets so
that they line up with the mounting holes.
For the upper extended EMI card cover, the groove that holds the points on the cover should be at
the top.
For the lower extended EMI card cover, the groove that holds the points on the cover should be at
the bottom.
3. Secure the extended EMI cover mounting brackets using the four screws provided (two on each side)
(see Figure 260 on page 600).
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