Applicable Industry Standards - Extreme Networks Summit X150 Series Hardware Installation Manual

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Display the voltage currently on the line.
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Provide alarms on certain error conditions.
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Provide short-circuit protection.
Select 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 the installation will allow? (See
Note
Extreme Networks recommends that you use a UPS that provides online protection.
Calculate Volt-Amperage Requirements
To determine the size of UPS that you need:
1 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 Volt-Amperes (VA):
VA = Volts x Amperes
2 Add the VA from all the pieces of equipment together to find the total VA requirement.
To determine the minimum volt-amperage requirements for your UPS, Extreme Networks
recommends that you add 30% to the total.
UPS Transition Time
Transition time is the time that is necessary for the UPS to transfer from utility power to full-load
battery power.
For Extreme Networks products, a transition time of less than 20 milliseconds is required for optimum
performance.
DC Power Requirements
This system should be installed in a DC-I battery return configuration.
In a DC-I configuration, the battery return conductor should be connected directly to the central office
power return bus, and not to the equipment frame or the grounding means of the equipment.

Applicable Industry Standards

For more information, see the following ANSI/TIA/EIA standards:
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ANSI/TIA/EIA-568-A—discusses the six subsystems of a structured cabling system.
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ANSI/TIA/EIA-569-A—discusses design considerations.
Summit Family Hardware Installation Guide
Site Preparation
UPS Transition Time)
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