Juniper EX4300 Series Hardware Manual page 105

Table 30: Details of the AC Power Supplies in EX4300 Switches
Details
Operating range
NOTE: In EU countries, Egypt, Nigeria, Saudi Arabia, Serbia, South Korea, and South Africa, you
must ensure that the redundant power supply is installed in the switch chassis.
To prevent electrical injury while installing or removing AC power supplies, carefully follow instructions
in "Installing an AC Power Supply in an EX4300 Switch" on page 298
Supply from an EX4300 Switch" on page
AC Power Supply Airflow
Each power supply has its own fan and is cooled by its own internal cooling system.
Each power supply has a label AIR OUT (AFO) or AIR IN (AFI) on the faceplate of the power supply that
indicates the direction of airflow in the power supply.
Table 31 on page 95 lists the AC power supply models and the direction of airflow in them.
Table 31: Airflow Direction in AC Power Supply Models for EX4300 Switches
Model
JPSU-350-AC-AFO-A
350 W AC Power
Supply
•
Low line: 100–
120 VAC
•
High line: 200–
240 VAC
296.
Label on Direction of Airflow
Power Supply
AIR OUT Front-to-back—that is, air intake to cool the chassis is through the
(AFO) vents on the front panel of the chassis and hot air exhausts through
the vents on the rear panel of the chassis.
(Continued)
715 W AC Power 1100 W AC
Supply Power Supply
• •
Low line: 100– Low line: 115–
120 VAC 120 VAC
• •
High line: High line:
200–240 VAC 200–240 VAC
and
1400 W AC
Power Supply
•
Low line: 100–
140 VAC
•
High line:
200–240 VAC
"Removing an AC Power
95