Power Supply Cords Selection
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
375
Calculating 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 the Volt-Amps (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.
Power Supply Cords Selection
Extreme Networks provides power input cords shipped in the product box for use in the US and
Canada. Power supply cords for use outside of the United States and Canada are typically provided
separately by third-party distribution centers. Contact the Extreme Networks TAC for questions
regarding the proper selection of a power input cord for your specific switch.
The following are power cord requirements for use on Extreme switches:
Summit Family of Switches:
● Wire: 18 AWG (.823mm
2
) minimum, 3-conductor flexible cable, Type SVT, SJT, HAR or equivalent,
no longer then 15ft
● Wall plug: Suitable for use in country of installation & approved by local regulatory authority
● Device connector: IEC320-C13, rated at 10 A, 250 VAC
● Power cord assembly: Must be rated at 10A, 250V by in-country regulatory authority
Black Diamond SSI AC PSU Model 60020:
● Wire: 16 AWG (1.31 mm
2
) minimum, 3-conductor flexible cable, Type SVT, SJT, HAR or equivalent,
no longer then 10ft
● Wall plug: Suitable for use in country of installation & approved by local regulatory authority
● Device connector: IEC320-C13, 90 degree angle, rated at 15 A, 250 VAC
● Power cord assembly: Must be rated at 10A by in-country regulatory authority
Black Diamond SSI DC PSU, Model 60021:
● Wire: UL LISTED Type TC (Tray Cable), three conductor, 8 AWG, jacketed, and marked (UL) TC, 90C
min
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