Extreme Networks WM-4T1i Especificações descarregar pdf (Página 61)

Applicable Industry Standards

Extreme Networks Consolidated Hardware Guide 61

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.

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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Extreme Networks WM-4T1i Especificações Página 61