Abstract: The present document discloses network nodes and apparatuses deployable in network systems. The network node may be coupleable via a transmission line to the apparatus. In particular, the network node may comprise means for receiving supply power from the apparatus via the transmission line; performing a line measurement on the transmission line; and signaling to the apparatus to disconnect from the transmission line, wherein the means may be further configured to perform the line measurement on the transmission line during a period of time when the apparatus is disconnected from the transmission line. The apparatus may comprise means for providing supply power to the network node; monitoring at least one electrical parameter of the transmission line; and disconnecting the apparatus from the transmission line if a predetermined line condition or a power violation is detected such that the network node can perform a measurement on the transmission line.

Abstract: The present document discloses network nodes and apparatuses deployable in network systems. The network node may be coupleable via a transmission line to the apparatus. In particular, the network node may comprise means for receiving supply power from the apparatus via the transmission line; performing a line measurement on the transmission line; and signaling to the apparatus to disconnect from the transmission line, wherein the means may be further configured to perform the line measurement on the transmission line during a period of time when the apparatus is disconnected from the transmission line. The apparatus may comprise means for providing supply power to the network node; monitoring at least one electrical parameter of the transmission line; and disconnecting the apparatus from the transmission line if a predetermined line condition or a power violation is detected such that the network node can perform a measurement on the transmission line.

Abstract: In accordance with an embodiment, the coupling arrangement includes adders for adding a common-mode signal to a differential-mode signal and amplification units for individually and evenly amplifying input signals present on their input terminals, thereby yielding amplified common-and-differential-mode signals. Coupling units with capacitive coupling are configured to pass the amplified common-and-differential-mode signals towards a wire pair.

Abstract: In accordance with an embodiment, the coupling arrangement includes adders for adding a common-mode signal to a differential-mode signal and amplification units for individually and evenly amplifying input signals present on their input terminals, thereby yielding amplified common-and-differential-mode signals. Coupling units with capacitive coupling are configured to pass the amplified common-and-differential-mode signals towards a wire pair.

Abstract: A single-ended low pass filter and its double-ended or balanced version comprising a first coil (Lp1) coupled between a first input (Vin1) and a first output (Vout1) terminal of the filter, a second coil (Lp2) coupled between a second input (Vin2) and a second output (Vout2) terminal of this filter, and a capacitor (C) coupled between the first and second output terminals.

Abstract: A single-ended low pass filter and its double-ended or balanced version comprising a first coil (Lp1) coupled between a first input (Vin1) and a first output (Vout1) terminal of the filter, a second coil (Lp2) coupled between a second input (Vin2) and a second output (Vout2) terminal of this filter, and a capacitor (C) coupled between the first and second output terminals.