Calculating Volt-Amperage Requirements; Ups Transition Time; Applicable Industry Standards - Extreme Networks BlackDiamond X8 Series Hardware Installation Manual

Chapter 4: Site Preparation

Calculating Volt-Amperage Requirements

To determine the minimum volt-amperage requirements for your UPS:
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.
2 Multiply the numbers together to get Volt-Amps (VA):
VA = Volts x Amperes
3 Add together the VA from all the pieces of equipment to find the total VA requirement.
To determine the minimum volt-amperage requirements for your UPS, we recommend 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.

Applicable Industry Standards

For more information, see the following ANSI/TIA/EIA standards:
ANSI/TIA/EIA-568-A—discusses the six subsystems of a structured cabling system.
●
ANSI/TIA/EIA-569-A—discusses design considerations.
●
ANSI/TIA/EIA-606—discusses cabling system administration.
●
ANSI/TIA/EIA-607—discusses commercial building grounding and bonding requirements.
●
You can access these standards at:
http://www.ansi.org
or
http://www.tiaonline.org
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BlackDiamond X8 Series Switches Hardware Installation Guide