Brocade ICX 7750 Hardware Installation Guide - Manual (Page 29)

Brocade ICX 7750 Hardware Installation Guide 19
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Power supplies
3. Connect the power cables to 100-240VAC or -48VDC power source.
NOTE
To turn the system off, simply unplug the power cable or cables.
NOTE
A power source should be installed near the equipment and should be easily accessible.
Power supplies
The Brocade ICX 7750 supports alternating-current (AC) and direct-current (DC) power supplies.
The Brocade ICX 7750 is capable of running on one power supply and three fans. The second
power supply and fourth fan provide redundancy.
If the second power supply and fourth fan slots are unused, you must cover them with filler panels.
ATTENTION
Brocade recommends that the Brocade ICX 7750-48C operate with two power supplies and four fan
trays installed. If a power supply or fan tray fails, it must be replaced as soon as possible.
Installing and replacing a power supply unit
When installing or replacing a power supply unit, keep in mind the following:
• Power supplies can be swapped in or out while the device is running. The remaining power
supply provides enough power for the device.
• The airflow direction of the power supply must match that of the installed fan trays. All must be
either exhaust or intake.
CAUTION
Power supplies are hot-swappable. However, they should be inserted or removed without a power
cord being connected to a power source to avoid damage.
CAUTION
For Brocade ICX 7750 devices, be sure that the airflow direction of the power supply unit
matches that of installed fan trays. The power supplies and fan trays are clearly labeled with
either a green arrow with an “E”, or an orange arrow with an “I.”
Installing an AC power supply
Use the following steps to install an AC power supply in the Brocade ICX 7750.