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Preface
Obtaining Technical Assistance
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Quick Start Guide: Power Supplies for Cisco 4400 Series WLAN Controllers
78-17159-04
In an emergency, you can also reach PSIRT by telephone:
• 1 877 228-7302
• 1 408 525-6532
Obtaining Technical Assistance
For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, Cisco
Technical Support provides 24-hour-a-day, award-winning technical assistance. The Cisco Technical
Support Website on Cisco.com features extensive online support resources. In addition, Cisco Technical
Assistance Center (TAC) engineers provide telephone support. If you do not hold a valid Cisco service
contract, contact your reseller.
Cisco Technical Support Website
The Cisco Technical Support Website provides online documents and tools for troubleshooting and
resolving technical issues with Cisco products and technologies. The website is available 24 hours a day,
365 days a year, at this URL:
http://www.cisco.com/techsupport
Access to all tools on the Cisco Technical Support Website requires a Cisco.com user ID and password.
If you have a valid service contract but do not have a user ID or password, you can register at this URL:
http://tools.cisco.com/RPF/register/register.do
Note Use the Cisco Product Identification (CPI) tool to locate your product serial number before submitting a web
or phone request for service. You can access the CPI tool from the Cisco Technical Support Website by
clicking the Tools & Resources link under Documentation & Tools. Choose Cisco Product Identification
Tool from the Alphabetical Index drop-down list, or click the Cisco Product Identification Tool link under
Alerts & RMAs. The CPI tool offers three search options: by product ID or model name; by tree view; or for
certain products, by copying and pasting show command output. Search results show an illustration of your
product with the serial number label location highlighted. Locate the serial number label on your product and
record the information before placing a service call.