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Appendix G: Contacting Customer Support and Returning T640 Router Hardware
Provide the following information in your e-mail message or during the telephone call:
3.
Part number and serial number of component
Your name, organization name, telephone number, and fax number
Description of the failure
The support representative validates your request and issues an RMA number for
4.
return of the component.
Pack the router or component for shipment.
5.
T640 Preventing Electrostatic Discharge Damage on page 306
T640 Chassis Description on page 13
Locating T640 Component Serial Numbers Using the CLI on page 369
T640 Physical Specifications on page 341
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