Patent Number: 6,311,279

Title: Network node with internal battery backup

Abstract: A method and apparatus for providing uninterrupted DC power for network nodes. The uninterrupted DC power is derived from modular, stackable uninterruptible power supplies that fit within the housing of the network node. Because the battery of the uninterruptible power supply is charged from a DC output of a main power supply, only one AC/DC power converter is required. A high degree of efficiency is therefore obtained.

Inventors: Nguyen; Hai N. (Spring, TX)

Assignee: Compaq Computer Corporation

International Classification: G06F 1/26 (20060101); H02J 9/06 (20060101); H02J 7/02 (20060101); G06F 001/26 ()

Expiration Date: 10/30/2018