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Remote powering is a concept for distributing DC power over existing twisted pair copper networks. The concept is typically for use in broadband applications like Internet, video on demand, real-time broadcast TV and other applications. Especially in centralised telecom networks with large central offices and long distances to remote nodes, remote powering can prove a lot of benefits. The paper shows...
The development and manufacturing of lithium-ion batteries have matured to the point that large form factor batteries are available for applications in the telecommunications industry. These batteries offer the advantage of much high energy density than lead acid battery, both in terms of weight and volume. They do not emit hydrogen gas and have a low steady state float current that is independent...
Forty years ago, lead-acid batteries were already the dominating electrochemical storage system. As standby batteries, they mostly were used as large central batteries of flooded cells. Although they already represented a matured system, development went on, mainly in the areas of safety aspects and reduction of maintenance expenses. An important turning point was the introduction of the valve-regulated...
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