Juniper QFX5220, Hardware Manual

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Figure 37: Sliding Mounting Blade into the Mounting Rail
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9. Ensure that the switch chassis is level by verifying that all the screws on the front of the rack are aligned
with the screws at the back of the rack.
10. We recommend that you insert dust covers in any unused ports.
Four-Post Cabinet Installation for QFX5220-32CD
You can mount a QFX5220-32CD on four-post racks within a cabinet. For cabinet installations, you need
to reconfigure the provided mounting rail. The mounting rail needs to be changed from a flush-mount to
a set-back design to allow room in the cabinet for network cabling. Use the following procedure for a
four-post cabinet installation:
1. Attach the ESD grounding strap to your bare wrist and to a site ESD point.
2. Decide whether the field replaceable unit (FRU) end of the switch or the port end is to be placed at
the front of the rack. Position the device in such a manner that the AIR IN labels on components are
next to the cold aisle and AIR OUT labels on components are next to the hot aisle.
3. Disassemble one of the front mounting rails by removing the three Phillips screws. See
Figure 38 on page 123 for the rail assembly.
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