Power Supplies; Ac Power Supply In Ex4300 Switches; Chapter 4 Power Supplies - Juniper EX4300 Hardware Manual

CHAPTER 4

Power Supplies

AC Power Supply in EX4300 Switches

Copyright © 2017, Juniper Networks, Inc.
AC Power Supply in EX4300 Switches on page 49
AC Power Supply LEDs in EX4300 Switches on page 56
DC Power Supply in EX4300 Switches on page 57
DC Power Supply LEDs in EX4300 Switches on page 62
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 (
) in the same chassis.
(AFO)
Fan modules with different airflow labels (
in the same chassis.
Power supplies and fan modules with different airflow labels (
and AIR OUT (AFO)
This topic includes:
Characteristics of an AC Power Supply on page 50
AC Power Supply Airflow on page 51
AIR IN (AFI)
) in the same chassis.
and
AIR IN (AFI) AIR OUT
and
AIR OUT (AFO)
AIR IN (AFI)
)
49