Deutschetelekom Ag

Astro Strobel Kommunikationssysteme Gmbh

Peter Muggenthaler

Ralph Leppla

Marko Loeffelholz

Christoph Tudziers

Marko LÖFFELHOLZ

Mirko Ries

Franz-Josef Leitinger

Bernd Zopf

A method for transmitting digital subscriber connection signals to an interface of an end user via a coaxial cable includes: supplying, by a distribution point unit (DPU), first balanced subscriber connection signals to the coaxial cable by a first transformation; coupling unbalanced subscriber connection signals into the coaxial cable into a lower frequency range of an overall frequency range; attenuating, by means of a filtering device, a reflection of the unbalanced subscriber connection signals in the coaxial cable; a second transformation of the unbalanced subscriber connection signals into second balanced subscriber connection signals by means of a balun device assigned to the interface, wherein the input impedance of the filtering device is adjusted with respect to reflections from the direction of the customer terminal output; and separately making the second balanced subscriber connection signals available at the customer terminal output.

Transferring digital subscriber connection signals via a coaxial cable

An apparatus for decoupling a radio-frequency signal transmitted on a data transmission line having a first line element and a second line element, or for decoupling interference voltages includes: a tapping module, connected to the first and second line elements at a first tapping location of the data transmission line, for decoupling the radio-frequency signal or interference voltages; a current probe module, coupled to the first line element at a second tapping location of the data transmission line; and an output capable of being matched to different input impedances of a device connected to the output.

Apparatus for decoupling a radio-frequency signal transmitted on a data transmission line

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Modautal, Germany

Peter Muggenthaler