Juniper QFX5220, Руководство по оборудованию, Страница: 126 / 247

Ground the QFX5220-128C
To connect earth ground to a QFX5220-128C:
1. Use two SAE 10-32 x 0.25 in. screws with number10 split-lock washers (not provided) to secure the
grounding lug and attached cable (not provided) to the FRU panel of the chassis. The posts on the
grounding lug should point to the right. See Figure 47 on page 129 .
Figure 47: Connecting a Grounding Cable to a QFX5220-128C
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2. Connect the remaining end of the grounding cable to a proper earth ground, such as the rack in which
the switch is mounted.
3. Dress the grounding cable and ensure that it does not touch or block access to other device components
and that it does not drape where people could trip over it.
Connect Power to the QFX5220-128C
The QFX5220-128C is shipped from the factory with four power supplies. Each power supply is a
hot-removable and hot-insertable field-replaceable unit (FRU) when the second power supply is installed
and running. You can install a replacement power supply in either of the two slots next to the fan modules
without powering off the switch or disrupting the switching function.
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