Brocade Communications Systems FESX624E-PREM6, Руководство по установке

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22 Brocade FastIron Edge X-Series Hardware Installation Guide
Part Number: 53-1002499-02
Product Overview
Hardware features
•
Power status LEDs are listed in Table 7 on page 26.
•
Hardware specifications for the power supplies are listed in Chapter 6, “Hardware Specifications” .
•
“About redundant power supplies and power supply failure” on page 23
POE power supply precautions
The following precautions apply to FastIron POE compact switches:
•
A device with dual power supplies may not provide redundancy, depending on how much power the POE ports are consuming.
For more information, refer to
“What happens when a FastIron POE power supply fails” on page 23.
•
If your device has 48 ports and two power supplies, and the POE ports are consuming more than 480 watts of power, a single
power supply failure will cause both power supplies to shut down.
•
If your device has 48 ports and only one power supply, and each POE-enabled port needs 15.4 watts, then a maximum of 31
ports can supply power to connected devices.
•
If your device has 48 ports and only one power supply, and the power consuming devices connected to POE-enabled ports
consume a total of more than 480 watts of power, the power supply may shut down.
NOTE
The system powers on as many POE ports as the power supplies can handle. The system calculates the maximum number
of POE ports it can support based on the number of power supplies installed. POE ports are enabled based on their priority
settings. Keep in mind that the system will reserve the maximum configured power per POE-enabled port, even if the POE
power-consuming device is drawing less power.
AC power supplies
Figure 5 shows a rear view of a FastIron Compact device containing one AC power supply. The power supply installed in your system
may vary from the one shown here, which does not have an ON or OFF switch.
FIGURE 5 AC power supply without ON or OFF switch
Figure 6 shows a rear view of a FastIron Compact device containing one AC power supply. The power supply installed in your system
may vary from the one shown here, which has an ON or OFF switch.
Pla s tic Latch
AC Power
Connector
Power S upply ( s tandard)