A cord for suppressing noise from a modem includes a hot wire, a neutral wire, and a signal balancing device. The hot wire is configured to connect to a hot power port of a modem. The neutral wire is configured to connect to a neutral power port of the modem. The signal balancing device is configured to connect to an outer conductor of a coaxial radiofrequency (RF) port of the modem and to the neutral wire or a ground wire. The signal balancing device is configured to balance RF signals transmitted through the coaxial RF port.

A cord for suppressing noise from a modem includes a hot wire, a neutral wire, and a signal balancing device. The hot wire is configured to connect to a hot power port of a modem. The neutral wire is configured to connect to a neutral power port of the modem. The signal balancing device is configured to connect to an outer conductor of a coaxial radiofrequency (RF) port of the modem and to the neutral wire or a ground wire. The signal balancing device is configured to balance RF signals transmitted through the coaxial RF port.

A noise suppression circuit device includes a baseboard, a decoupling capacitor set, a power bus structure, a band-stop filter unit and an electromagnetic band-gap structure. The decoupling capacitor set is disposed on the baseboard for isolating noise of a first frequency band. The power bus structure is disposed on the baseboard for isolating noise of a second frequency band. The band-stop filter unit is disposed on the baseboard for isolating at least a portion of noise of a third frequency band. The electromagnetic band-gap structure is disposed on the baseboard for isolating noise of a fourth frequency band.

A transceiver, TX/RX PHY, arranged for bi-directional data communication of a node with a counterpart node connected to a point-to-point network using differential mode signaling over a single twisted-pair cable is disclosed. The transceiver, TX/RX PHY, includes a common mode choke arranged between of the TX/RX PHY and the single twisted-pair cable and provided for common mode current suppression. Further included is a switching arrangement arranged between the TX/RX PHY, the common mode choke and the single twisted-pair cable and configured to switchably change a polarity of one of the windings of the common mode choke. A detection section is included and coupled via the switching arrangement to the common mode choke and configured to detect a common mode signal on the single twisted-pair cable in response to a transmission of a test signal by the counterpart node.

Aspects of the subject disclosure may include, receiving a signal, and launching, according to the signal, an electromagnetic wave along a transmission medium, where the electromagnetic wave propagates along the transmission medium without requiring an electrical return path, and where the electromagnetic wave has a phase delay profile that is dependent on an azimuth angle about an axis of the transmission medium. Other embodiments are disclosed.

Aspects of the subject disclosure may include, receiving a signal, and launching, according to the signal, an electromagnetic wave along a transmission medium, where the electromagnetic wave propagates along the transmission medium without requiring an electrical return path, and where the electromagnetic wave has a phase delay profile that is dependent on an azimuth angle about an axis of the transmission medium. Other embodiments are disclosed.

An electronic apparatus is disclosed that implements a distributed differential interconnect. In an example aspect, the electronic apparatus includes a first endpoint having a first differential connection interface and a second endpoint having a second differential connection interface. The electronic apparatus also includes a differential interconnect coupled between the first differential connection interface and the second differential connection interface. The differential interconnect includes a plus pathway and a minus pathway. The plus pathway extends between the first differential connection interface and the second differential connection interface, with the plus pathway including multiple plus conductors. The minus pathway extends between the first differential connection interface and the second differential connection interface, with the minus pathway including multiple minus conductors.

An electronic apparatus is disclosed that implements a distributed differential interconnect. In an example aspect, the electronic apparatus includes a first endpoint having a first differential connection interface and a second endpoint having a second differential connection interface. The electronic apparatus also includes a differential interconnect coupled between the first differential connection interface and the second differential connection interface. The differential interconnect includes a plus pathway and a minus pathway. The plus pathway extends between the first differential connection interface and the second differential connection interface, with the plus pathway including multiple plus conductors. The minus pathway extends between the first differential connection interface and the second differential connection interface, with the minus pathway including multiple minus conductors.

A cord for suppressing noise from a modem includes a hot wire, a neutral wire, and a signal balancing device. The hot wire is configured to connect to a hot power port of a modem. The neutral wire is configured to connect to a neutral power port of the modem. The signal balancing device is configured to connect to an outer conductor of a coaxial radiofrequency (RF) port of the modem and to the neutral wire or a ground wire. The signal balancing device is configured to balance RF signals transmitted through the coaxial RF port.

A cord for suppressing noise from a modem includes a hot wire, a neutral wire, and a signal balancing device. The hot wire is configured to connect to a hot power port of a modem. The neutral wire is configured to connect to a neutral power port of the modem. The signal balancing device is configured to connect to an outer conductor of a coaxial radiofrequency (RF) port of the modem and to the neutral wire or a ground wire. The signal balancing device is configured to balance RF signals transmitted through the coaxial RF port.