Juniper EX4650 Series User Manual

Be sure to use the correct power supply for your chassis product SKU (see Table 14 on page 43).
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.
•
Power supplies and fan modules with different airflow labels (AIR IN (AFI) and AIR
OUT (AFO)) in the same chassis.
CAUTION: Verify that the airflow direction on the power supply handle matches the
direction of airflow in the chassis. Ensure that each power supply you install in the chassis
has the same airflow direction. If you install power supplies with two different airflow
directions, Junos OS raises an alarm. If you need to convert the airflow pattern on a
chassis, you must replace all the fans and power supplies at one time to use the new
direction.
Table 14 on page 43 lists the AC and DC power supplies used in EX4650 switches and the direction of
airflow in them.
Table 14: Airflow Direction in Power Supplies for EX4650 Switches
Color of Power Supply HandleDirection of AirflowProduct Number
Juniper GoldBack to frontEX4650-48S-AFO
Juniper Azure BlueFront to backEX4650-48S-AFI
Juniper GoldBack to frontEX4650-48S-DC-AFO
Juniper Azure BlueFront to backEX4650-48S-DC-AFI
AC Power Supply Specifications for EX4650 Switches
EX4650 switches support 650 W AC power supplies.
43

Juniper EX4650 Series Specifications

General

Brand	Juniper
Model	EX4650 Series
Category	Switch
Language	English