Juniper QFX5100, Руководство по оборудованию

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CHAPTER 5
Power Supply
• AC Power Supply for a QFX5100 Switch on page 35
• DC Power Supply in a QFX5100 Switch on page 37
•
Grounding Cable and Lug Specifications for a QFX5100 Switch on page 39
AC Power Supply for a QFX5100 Switch
The two power supplies in QFX5100 switches are hot-removable and hot-insertable
field-replaceable units (FRUs). The power supplies are installed in the switch at the
factory. You can install replacement power supplies from the management panel without
powering off the switch or disrupting the switching function.
The AC power supply in 1 U models of QFX5100 is 650 W; the AC power supply in the 2 U
model, QFX5100-96S, is 850 W. Both power supplies look identical. Be sure to use the
correct power supply for your chassis product SKU (see
Table 11 on page 37 ).
CAUTION: Do not mix power supplies with different airflow or different
wattage. The system raises an alarm when a power supply having a different
airflow or wattage is inserted into the chassis.
See Figure 20 on page 35 for an example of the 1 U design and Figure 21 on page 36 for
an example of the 2 U power supply.
Figure 20: 1 U AC Power Supply in QFX5100 Switches
g050255
1 2
3
4
3— 1— AC appliance inlet Handle
4— 2— Ejector lever Security latch
35 Copyright © 2014, Juniper Networks, Inc.