Extreme Networks BlackDiamond 8806, Руководство по установке оборудования

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BlackDiamond 8800 Series Switches Hardware Installation Guide
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AC Power Cord Requirements
AC power input cords are not provided with BlackDiamond power supplies. To purchase a power cord
for your product and for your specific country, contact your local Extreme Networks Channel Account
Manager or Sales Manager, or purchase a cord from your local supplier.
Make sure that the power cord you use is certified for the country of end use and suitable for the
device. Check your local electrical codes and regulatory agencies for power cable requirements.
The power cord must meet the requirements listed in “Selecting Power Supply Cords” on page 172 .
NOTE
When using multiple power supplies, make sure that each AC power supply attaches to an independent power
source.
Uninterruptible Power Supply Requirements
An uninterruptible power supply (UPS) is a device that sits between a power supply (such as a wall
outlet) and a device (such as a switch) to prevent outages, sags, surges, and bad harmonics from
adversely affecting the performance of the device.
A UPS traditionally can perform the following functions:
●
Absorb relatively small power surges.
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Smooth out noisy power sources.
●
Continue to provide power to equipment during line sags.
●
Provide power for some time after a blackout has occurred.
In addition, some UPS or UPS plus software combinations provide the following functions:
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Automatically shut down equipment during long power outages.
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Monitor and log power supply status.
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Display the voltage (current draw) of the equipment.
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Restart equipment after a long power outage.
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Display the voltage currently on the line.
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Provide alarms on certain error conditions.
●
Provide short circuit protection.
Selecting a UPS
To determine UPS requirements for your switch, answer these questions:
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What are the amperage requirements?
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What is the longest potential time period that the UPS would be required to supply backup power?
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Where will the UPS be installed?
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What is the maximum transition time that your installation will allow?