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Extreme Networks Consolidated "e" and "i" Series Hardware Installation Guide
Site Preparation
Uninterruptable 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.
UPS Features
A UPS traditionally can perform the following functions:
•
Absorb relatively small power surges.
•
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:
•
Automatic shutdown of equipment during long power outages.
•
Monitoring and logging of power supply status.
•
Display the voltage (current draw) of the equipment.
•
Restart equipment after a long power outage.
•
Display the voltage currently on the line.
•
Provide alarms on certain error conditions.
•
Provide short circuit protection.
Selecting a UPS
To determine UPS requirements for your switch, ask these questions:
•
What are the amperage requirements?
•
What is the longest potential time period that the UPS would be required to supply backup power?
•
Where will the UPS be installed?
•
What is the maximum transition time that your installation will allow?
NOTE
Extreme Networks recommends that you use a UPS that provides online protection.
Calculating Amperage Requirements
To determine the size of UPS that you need, use the following procedure:
1
To find VA (Volt-Amps), locate the voltage and amperage requirements for each piece of equipment.
These numbers are usually located on a sticker on the back or bottom of your equipment. Then
multiply the numbers together to get VA:
VA = Volts x Amperes
2
Add the VA from each piece of equipment together to find the total VA requirement.
To determine the minimum amperage requirements for your UPS, we recommend that you add 30%
to the total.
Содержание e" series
Страница 18: ...18 Extreme Networks Consolidated e and i Series Hardware Installation Guide Preface...
Страница 19: ...Part 1 Common Features...
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Страница 25: ...Part 2 Site Planning...
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Страница 56: ...56 Extreme Networks Consolidated e and i Series Hardware Installation Guide Site Preparation...
Страница 57: ...Part 3 Summit Switch...
Страница 58: ......
Страница 106: ...106 Extreme Networks Consolidated e and i Series Hardware Installation Guide Summit Switch Models...
Страница 116: ...116 Extreme Networks Consolidated e and i Series Hardware Installation Guide Summit Switch Installation...
Страница 137: ...Part 4 Alpine Switch...
Страница 138: ......
Страница 180: ...180 Extreme Networks Consolidated e and i Series Hardware Installation Guide Alpine 3800 Series Switch Management Module...
Страница 208: ...208 Extreme Networks Consolidated e and i Series Hardware Installation Guide Alpine 3800 Series I O Modules...
Страница 213: ...Part 5 BlackDiamond Switch...
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Страница 232: ...232 Extreme Networks Consolidated e and i Series Hardware Installation Guide BlackDiamond 6800 Series Switch Overview...
Страница 303: ...Part 6 Switch Operation...
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Страница 307: ...Part 7 Appendixes...
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Страница 314: ...314 Extreme Networks Consolidated e and i Series Hardware Installation Guide Safety Information...
Страница 376: ...376 Extreme Networks Consolidated e and i Series Hardware Installation Guide Installing GBICs and Mini GBICs...