Title :
270 V DC system-a highly efficient and reliable power supply system for both telecom and datacom systems
Author :
Yamashita, Takashi ; Muroyama, Seiichi ; Furubo, Shizuo ; Ohtsu, Satoshi
Author_Institution :
NTT Telecommun. Energy Labs., Tokyo, Japan
Abstract :
A 270 V DC power supply system is superior to the conventional 48 V DC system or 200 V AC system because of its high reliability, high supply efficiency and low cost, especially as the power consumption of telecom and datacom equipment cabinets increases. Introducing 270 V DC system will require the development of several power supply components in the telecom and datacom equipment cabinet. Therefore, the appropriateness of the 270 V DC system depends on the power consumption of cabinets in the future
Keywords :
DC power transmission; power consumption; power system reliability; telecommunication power supplies; 270 V; data communication systems; high reliability; high supply efficiency; power consumption; power supply components; reliable power supply system; telecommunication systems; Batteries; Cables; Energy consumption; ISDN; Optical fibers; Power supplies; Power system reliability; Rectifiers; Telecommunications; Voltage;
Conference_Titel :
Telecommunication Energy Conference, 1999. INTELEC '99. The 21st International
Conference_Location :
Copenhagen
Print_ISBN :
0-7803-5624-1
DOI :
10.1109/INTLEC.1999.794002
