Power Systems for Telecommunications in the IT Age

Hiroaki IKEBE  Takashi YAMASHITA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E87-B   No.12   pp.3414-3421
Publication Date: 2004/12/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Section on the 25th International Telecommunications Energy Conference (INTELEC'03))
Category: 
Keyword: 
Internet data center,  power system,  UPS,  DC power system,  DC/AC universal system,  

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Summary: 
Public telephone network have been dramatically changing to IP (Internet Protocol) based network. This paper starts with an overview of the present status of the telecommunications network and the rapid evolution of iDCs (internet Data Centers) now underway. Next, we focus on the existing configurations and the characteristics of power systems for IP equipment and iDCs, and then clarify the cutting-edge technologies for highly reliable powering systems and the advantages of DC power systems. Finally, the paper demonstrates energy-saving activities, and the prospected issues to be solved in the field of power systems for the coming full-fledged IT Age.