Installation manual

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Provide alarms on certain error conditions.
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Provide short circuit protection.
Selecting a UPS
Select a UPS that meets your requirements:
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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?
Note
We recommend that you use a UPS that provides online protection.
Calculating Volt-Amperage Requirements
Building and electrical codes vary depending on your location.
1 Multiply the number of PSUs by 2500W to get VA. If the BDX is to be operated from 110VAC, then
multiply the number of PSUs by 1250W to get VA.
VA = Volts multiplied by Amperes
2 Add 30% to the total (recommended by Extreme Networks) to determine the minimum volt-
amperage requirements for your UPS.
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.
Following Applicable Industry Standards
Always follow 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.
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ANSI/TIA/EIA-606: Discusses cabling system administration.
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ANSI/TIA/EIA-607: Discusses commercial building grounding and bonding requirements.
You can access these standards at www.ansi.org or www.tiaonline.org
Preparing Your Site
BlackDiamond X Series Switches Hardware Installation Manual 45