7850-Install-IG101 Installation Guide
Brocade
®
7850 Extension Switch Hardware Installation Guide
NOTE
•
The two power supply assemblies that are concurrently installed in the chassis must be of the same power
type, model (airflow direction), and part number. If the airflow directions are different, an error is generated on
the console.
•
The power supply assembly units are hot-swappable and can be replaced one at a time. They are identical
and install into either slot.
•
The device can operate all the ports with only one fan assembly failure and one power supply assembly
failure.
Precautions Specific to the Power Supply 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
Carefully follow the mechanical guides on each side of the power supply slot and make sure that the power
supply is properly inserted in the guides. Never insert the power supply upside down.
Identifying the Direction of the Power Supply Assembly Airflow
The Brocade 7850 Extension Switch supports only a port side exhaust. The power supply assemblies are identified by the
following airflow direction:
Intake power supply assembly with an orange arrow and an 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
7850-Install-IG101
75
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