Customer Case Study
anywhere in the district with a mouse click. If a teacher changes classrooms, he or she just takes the phone to the new room, plugs it in, and all of the programming moves with the phone. Instead of making a toll call, we have four- digit extensions across the network. We also have auto-attendant, so it's easy for parents to reach a department or teacher at any hour without going through the front office.”
Routing and Switching
Catalyst 6509 Series Switches
Catalyst 3750 Series Switches
Catalyst 4506 Series Switches
Catalyst 2948G Series Switches
Cisco Aironet® Wireless Access Points
Cisco VPN 3000 Concentrators
Cisco PIX 500 Firewall
Cisco Unified Communications Manager (CallManager)
Cisco Unity Connection Voice Messaging Solution
With the new network in place, providing centralized control over all of the district's HVAC systems merely required running a cable from the controllers to the switches in each building's wiring closets. The IT team installed Johnson Controls and Siemens software running on a server at the network operations center. Maintenance engineers use laptops and a secure web-based interface to check, diagnose, and adjust any HVAC system in a building, or in any building in the district, from any location, even from home through VPN connections.
To date, the district's “Go Green” program has exceeded its original projections and everyone's wildest expectations, cutting consumption by 42.7 percent and preserving an astounding $5.3 million for the district's budget. CRSD has been awarded ENERGY STAR's “Partner of the Year” for two years in a row.
Tom Schneider, CRSD’s supervisor of operational services, illustrates how network-based control can save tens of thousands of dollars with a single mouse click. “Over Thanksgiving and winter break last year, we set the whole district to unoccupied mode, dropping the temperature to 55 degrees. We compared the energy usage to the previous year, and even though the outdoor temperature was actually an average of four degrees colder, we saved $64,000 in energy over those 14 days.” Cisco Unified Presence Server ●
“Today we think of anything that draws power from any source as something we can manage in order to save energy,” says Frederickson. “With centralized control of all the IP phones in the district, we can power down the phones without losing access to vital phone services. We can also power down all of the wireless access points when the schools are unoccupied.” By turning off the desktop PCs for 12 hours a day remotely for just 1700 of the district's 5000 computers, Frederickson estimates that the district will save an additional $85,000 a year.
One of the primary goals for the network redesign was to create a more reliable, high-performance, lower maintenance environment. “We've exceeded our expectations with the Cisco network,” says Frederickson. “We went from a network that had regular daily outages to one that has nearly perfect availability. Just replacing the old PBXs with IP telephony and eliminating unnecessary telephone lines and long distance calls saved about $75,000 the first year and gave us voice services that are a thousand times easier to manage. In addition, we are using bandwidth so efficiently with our wired and wireless networks that teachers can take greater advantage of technology in the classroom and while in motion on campus, saving money by taking virtual field trips instead of real ones, while going to more exotic places, like Antarctica and outer space!"
“By bringing together best practices in energy management and IT, we believe that we have developed a program that other schools can adopt to help deal with fiscal pressures and environmental imperatives. That's a gratifying contribution that reaches beyond the boundaries of our district,” says Mark Klein, district superintendent.
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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