53-1003990-22 Installation Guide
Brocade
®
G620 Switch Hardware Installation Guide
Figure 37: DC Power Supply and Fan Assembly
1. Power-On/Off Switch
2. Power Supply and Fan Assembly Status LED
3. DC Power Cable Receptacle
4. Power Supply and Fan Assembly Handle
5. Captive Screw
The device supports the following types of power supplies.
•
AC or DC power supply with nonport-side air exhaust. This unit moves the air from the port side to the nonport side of
the device.
•
AC or DC power supply with nonport-side air intake. This unit moves the air from the nonport side to the port side of
the device.
NOTE
•
The two power supply and fan 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 device can operate all the ports with one power supply and fan assembly unit if you do not require
redundancy.
The device fans are fixed inside the combined power supply and fan assemblies to provide the necessary airflow to cool
the whole system. The system software sets the fan speed and measures it through the tachometer interface.
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.
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