Dell Brocade G620 Hardware Installation Guide - Page 77

Identifying the airflow direction, Exhaust power supply and fan assembly with a green E label

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Identifying the airflow direction CAUTION Use a separate branch circuit for each power cord, which provides redundancy in case one of the circuits fails. CAUTION To prevent damage to the chassis and components, never attempt to lift the chassis using the fan or power supply handles. These handles were not designed to support the weight of the chassis. NOTE The equipment installation must meet NEC/CEC code requirements. Consult local authorities for regulations. NOTE If the ambient temperature is above the recommended operational limits, the power supply units shutdown, which in turn shuts down the device without any warning message. Identifying the airflow direction The power supply and fan assemblies are identified by the following airflow directions: • Intake power supply and fan assembly with an orange "I" label or without any label: Pulls air from the nonport-side of the switch and exhausts it out the port side. • Nonport-side air intake • Port-side air exhaust • Back-to-front (nonport-side to port-side) airflow • Part numbers ending with -R • Exhaust power supply and fan assembly with a green "E" label: Pulls air from the port side of the switch and exhausts it out the nonport-side. • Nonport-side air exhaust • Port-side air intake • Front-to-back (port-side to nonport-side) airflow • Part numbers ending with -F Brocade G620 Hardware Installation Guide 77 53-1003990-01

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CAUTION
Use a separate branch circuit for each power cord, which provides redundancy in case one of
the circuits fails.
CAUTION
To prevent damage to the chassis and components, never attempt to lift the chassis using the
fan or power supply handles. These handles were not designed to support the weight of the
chassis.
NOTE
The equipment installation must meet NEC/CEC code requirements. Consult local authorities for
regulations.
NOTE
If the ambient temperature is above the recommended operational limits, the power supply units
shutdown, which in turn shuts down the device without any warning message.
Identifying the airflow direction
The power supply and fan assemblies are identified by the following airflow directions:
•
Intake power supply and fan assembly with an orange "I" label or without any label
: Pulls air
from the nonport-side of the switch and exhausts it out the port side.
•
Nonport-side air intake
•
Port-side air exhaust
•
Back-to-front (nonport-side to port-side) airflow
•
Part numbers ending with
-R
•
Exhaust power supply and fan assembly with a green "E" label
: Pulls air from the port side of the
switch and exhausts it out the nonport-side.
•
Nonport-side air exhaust
•
Port-side air intake
•
Front-to-back (port-side to nonport-side) airflow
•
Part numbers ending with
-F
Identifying the airflow direction
Brocade G620 Hardware Installation Guide
77
53-1003990-01