Confidential and proprietary information of Extreme Networks. © 2011 Extreme Networks, Inc.
All rights reserved. DRAFT. October 20, 2011
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Summit Family Switches Hardware Installation Guide
150
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:
● 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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