Figure 21: Ac Power Supply; Figure 22: Power Cord Retainer For An Ac Power Supply - Juniper EX4500 Hardware Manual

EX4500 Switch Hardware Guide
40

Figure 21: AC Power Supply

AC appliance Power supply
inlet handle
Ejector Power supply
lever LED
Each AC power supply has an ejector lever that holds the power supply in place. The
ejector lever locks into the corresponding hole in the chassis on the left side of the AC
appliance inlet. For instructions for installing the power supply, see
Power Supply in an EX4500 Switch" on page
Each AC power supply comes with a power cord retainer that holds the power cord in
place. See Figure 22 on page
nut. The L-shaped ends of the retainer clip hook into the bracket holes on each side of
the AC appliance inlet. The adjustment nut holds the power cord in the correct position.
For instructions for installing the power cord retainer, see
in an EX4500 Switch" on page

Figure 22: Power Cord Retainer for an AC Power Supply

Retainer
clip
Adjustment
nut
Each power supply has its own fan and is cooled by its own internal cooling system. The
airflow for a power supply is either from the front of the power supply to the back or from
the back of the power supply to the front depending on the switch model you purchase.
The color of the ejector lever on the power supply indicates the direction of airflow of
the power supply.
Green—Front-to-back airflow
Orange—Back-to-front airflow
The color of the power supply's ejector lever must match the color of the intake or exhaust
label visible through the vents of the installed fan tray. The color match indicates that
the direction of airflow through the fan tray matches the direction of airflow through the
power supply.
184.
40. The power cord retainer has a clip and an adjustment
184.
"Installing an AC
"Installing an AC Power Supply
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