3com S8520X-28S 0235A370 ユーザーズマニュアル

 

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Warranty and other service benefits start from the date of purchase, so it is important to register your 

product quickly to ensure you get full use of the warranty and other service benefits available to you.  

When you contact 3Com for assistance, please have the following information ready: 

z 

Product model name, part number, and serial number 

z 

Proof of purchase, if you have not pre-registered your product 

z 

A list of system hardware and software, including revision level 

z 

Diagnostic error messages 

z 

Details about recent configuration changes, if applicable 

To send a product directly to 3Com for repair, you must first obtain a return authorization number (RMA). 

Products sent to 3Com, without authorization numbers clearly marked on the outside of the package, 

will be returned to the sender unopened, at the sender’s expense. If your product is registered and 

under warranty, you can obtain an RMA number online at http://www.h3cnetworks.com  under 

support, Repair & Replacement Request. First time users will need to apply for a user name and 

password. 

3Com offers telephone, e-mail and internet access to technical support and repair services. To access 

these services for your region, use the appropriate telephone number, URL or e-mail address. 

Find a current directory of contact information posted on the web site at http://www.h3cnetworks.com 

under Support, Technical Support Contact.