Remote supply circuitry
AssigneeEricsson Austria AG
InventorsGünther Stadlbauer, Robert Steininger
Life of this patent
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Abstract
Remote supply circuitry for remotely supplying a subscriber connections in a communications system wherein subscribers can be connected to a central point via subscriber lines. Subscriber supply voltage or power supply is provided for each subscriber via a supply voltage source assigned to the subscriber and at least one supply isolating element wich is connected in series with the subscriber and associated subscriber line. The supply voltage source assigned to the subscriber supplies an output voltage which is controllable as a function of a measurable variable.
Claims13
A circuit arrangement for remotely supplying a subscriber connection in a communications system wherein a subscriber can be connected to a central point via a subscriber line (9), having a tip line (a) and a ring line (b) to a central point, the circuit arrangement comprising:
- a supply voltage source (5) assigned to the subscriber;
- at least one supply isolating element, wherein said at least one supply isolating element is connected in series with the subscriber and the associated subscriber line, one connection of said at least one supply isolating element being connected to the supply voltage source (5) assigned to the subscriber, the other connection being connected to one wire (b) of the subscriber line (9);
- and
- wherein the supply voltage source (5) assigned to the subscriber supplies an output voltage (Vs) which is controllable as a function of a measurable variable, said measurable variable being proportional to the power loss at the central point.
Dependencies are inferred from the claim text.