G720-Install-IG101 Installation Guide
Brocade
®
G720 Switch Hardware Installation Guide
The Optic Environmental Monitor (EM) Policy monitors the temperature of the SFP+ optics that are inserted on the
switch against the defined thresholds for that specific optic type (Vendor PN). The fan speed is adjusted based on the
temperature of the SFP+ and the EM thresholds.
Precautions Specific to the Power Supply and Fan Assemblies
DANGER
Make sure that the power source circuits are properly grounded, and then use the power cord supplied with the
device to connect it to the power source.
DANGER
If the installation requires a different power cord than the one supplied with the device, make sure you use a
power cord displaying the mark of the safety agency that defines the regulations for power cords in your country.
The mark is your assurance that the power cord can be used safely with the device.
CAUTION
Disassembling any part of the power supply and fan assembly voids the warranty and regulatory certifications.
There are no user-serviceable parts inside the power supply and fan assembly.
CAUTION
Ensure that the airflow direction of the power supply unit matches that of the installed fan tray. The power
supplies and fan trays are clearly labeled with either a green arrow with an "E" or an orange arrow with an "I."
CAUTION
If you do not install a module or a power supply in a slot, you must keep the slot filler panel in place. If you run
the chassis with an uncovered slot, the system will overheat.
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:
G720-Install-IG101
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Broadcom
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