CHAPTER 4
Power Supplies
•
AC Power Supply in EX4300 Switches on page 47
•
AC Power Supply LEDs in EX4300 Switches on page 54
•
DC Power Supply in EX4300 Switches on page 55
•
DC Power Supply LEDs in EX4300 Switches on page 59
AC Power Supply in EX4300 Switches
The AC power supply in EX4300 switches is a hot-insertable and hot-removable
field-replaceable unit (FRU): You can install it without powering off the switch or
disrupting the switching function.
All the EX4300 switches that are powered by AC power supplies except EX4300-24T-S,
EX4300-24P-S, EX4300-32F-S, EX4300-48T-S, and EX4300-48P-S switches are
shipped with one AC power supply pre-installed in the rear panel of the switches.
EX4300-24T-S, EX4300-24P-S, EX4300-32F-S, EX4300-48T-S, and EX4300-48P-S
switches are not shipped with pre-installed power supplies; you must order them
separately.
This topic describes the AC power supplies.
CAUTION:
Do not mix:
•
AC and DC power supplies in the same chassis
•
Power supplies with different airflow labels (
AIR IN (AFI)
and
AIR OUT
(AFO)
) in the same chassis.
•
Fan modules with different airflow labels (
AIR IN (AFI)
and
AIR OUT (AFO)
)
in the same chassis.
•
Power supplies and fan modules with different airflow labels (
AIR IN (AFI)
and
AIR OUT (AFO)
) in the same chassis.
This topic includes:
•
Characteristics of an AC Power Supply on page 48
•
AC Power Supply Airflow on page 49
47
Copyright © 2015, Juniper Networks, Inc.
Summary of Contents for EX4300
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