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Mobile terminals and communicating computers have generalized with lots of optimisation in their design and power. It seems that today appears a gap between the best known batteries and the still increasing power requirement of broadband multimedia terminal for a given mass and volume. This paper presents the probable energy requirements targets and lots of ongoing researches on power consumption,...
Current telecommunication infrastructure needs a large number of small and decentralised installations like e.g. remote digital line units (RDLU) in wire-line networks or base transceiver stations (BTS) in mobile networks. Selected in respect to minimum infrastructural costs, especially power system components often lack supervision functionality that allows optimizing long-term reliability or serviceability...
Data transmission networks are the backbone of modern telecommunications networks. They handle the transport of the constantly increasing volume of data between the various network elements of the fixed network and form the link between fixed network and mobile networks. The two technologies listed below are used: a) cable-based transmission (these days mostly involving optical fiber cables) b) point-to-point...
The situation of battery manufacturer as well as of the customer has changed dramatically in the past 15 years, leading to strong competition, pressure on price, increased safety, power and life requirements. The controversial requirements and interests of customers as well as of the battery manufactures are listed. Negative impacts and risks of the changes and requirements are mentioned and possible...
Fuel cell products and systems are still about to break through in their markets. Among many other applications which are currently under development most success for a market entry today is seen for stationary applications where conventional batteries often operate reach their technical limits. A fuel cell system in combination with a UPS application with a power output of netto 2 kW at - 48 VDC...
In order to pay off the high investments in licenses and technology for mobile communication networks (GSM, GSM-R, UMTS/3G, TETRA, CDMA) in time as short as possible, a fast and safe network system is necessary. Especially in the field of mobile communications, highest demand are made on the continuous availability of sending and receiving systems. The network based on the GSM 1800 standard is known...
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