Described herein are methods, devices, and systems for electrically connecting a plurality of shielded cable shields using a shield bridge conductor embedded in a polymer structure. The shield bridge conductor may electrically connect the cable shields of two or more phase conductor cables and a ground conductor cable.

Described herein are quick-connect twisted pair cables, cable systems and methods of installing/connecting them. For example, a quick-connect twisted pair cable may include a plurality of pairs of insulated wires within an outer insulating cover; within the insulating cover each of the plurality of pairs of insulated wires are wrapped around each other within elongate tubular body regions, and unwrapped (e.g., parallel) in flattened regions between the elongate tubular body regions. A quick plug connector may be configured as a standard (e.g., RJ-45) connector type.

A standard for near end crosstalk of a category 6A cable, including a registered jack 45 (RJ45), a clamp connected to the RJ45, a first attenuator and a second attenuator. The RJ45 includes a first signal twisted pair to transmit a first source signal and a second source signal, and a second signal twisted pair to transmit a third source signal and a fourth source signal. The clamp includes a first signal pair connector electrically connected to the first signal twisted pair, a second signal pair connector electrically connected to the second signal twisted pair, a first differential amplification circuit and a second differential amplification circuit. The first attenuator is electrically connected to the first signal pair connector. The second attenuator is electrically connected to the second signal pair connector. The second attenuator and the first attenuator are configured to detect the near end crosstalk.

In the process of mounting a joint terminal (5) into a first terminal accommodating portion (16) of a housing (15), tab terminals (6) of the joint terminal (5) move forward along tab entrance paths (26) formed in the housing (15). The tab entrance path (26) is formed with a cam portion (27) spiral about an axis thereof. As the tab terminal (6) moves forward in the tab entrance path (26), a follower portion (8) formed at an intermediate position of the tab terminal (6) is guided by the cam portion (27). Thus, the tab terminal (6) is twisted about an axis. In this way, resilient contact pieces (14) of female terminals (9A, 9B) face the tab terminals (6) in a plate surface direction of the tab terminals (6) and are connected to the tab terminals (6).

An electrical communications system is described between a first environment and a second environment, having time-varying ground potential differences. The system includes a wire pair for carrying an electrical signal to be communicated from the first environment to the second environment; a first ground shield surrounding the signal carrying wire pair connected to a ground of the first environment; a second ground shield surrounding the signal carrying wire pair connected to a ground of the second environment; and a resistive element connected between the wires in the signal carrying wire pair having a value chosen so as to suppress any natural resonance characteristics of the cable structure.

Described herein are quick-connect twisted pair cables, cable systems and methods of installing/connecting them. For example, a quick-connect twisted pair cable may include a plurality of pairs of insulated wires within an outer insulating cover; within the insulating cover each of the plurality of pairs of insulated wires are wrapped around each other within elongate tubular body regions, and unwrapped (e.g., parallel) in flattened regions between the elongate tubular body regions. A quick plug connector may be configured as a standard (e.g., RJ-45) connector type.

The invention discloses an acousto-optic audio signal cable which includes an audio wire cluster, at least one LED marquee light wire or at least one illuminating line parallel or spiral twining around outside or external wall of the audio wire cluster and an acousto-optic controller. The audio wire cluster and the LED marquee light wires form a cluster which is coated by a transparent insulating layer. A main circuit board of the acousto-optic controller includes a sampling amplifier circuit component, an analog-digital conversion circuit component, a microprocessor and an output driver sequentially connected. The audio wire cluster is connected to the input end of the sampling amplifier circuit component. The LED marquee light wires are connected to the output driver. The acousto-optic audio signal cable is simple in structure, convenient to operate, dynamic, fashionable and capable of synchronously flickering light during tone and rhythm changes of instrumental performances and speeches.

An acousto-optic audio signal cable includes an audio wire cluster, a light emitting diode marquee light wire or a light emitting diodes light-emitting light string or an electroluminescent cable, a transparent or light-transmitting insulating layer, and an acousto-optic controller. The light emitting diode marquee light wire and the audio wire cluster, or the light emitting diodes light-emitting light string and the audio wire cluster, or the electroluminescent cable and the audio wire cluster are integrated into a wire cluster. The transparent or light-transmitting insulating layer wraps the integrated wire cluster. The acousto-optic controller includes a sampling amplifier circuit component, an A/D conversion circuit component, a microprocessor, and an output driver coupled in sequence. An input terminal of the sampling amplifier circuit component is coupled to the audio wire cluster. The output driver is coupled to the light emitting diode marquee light wire.

The invention discloses an acousto-optic audio signal cable which includes an audio wire cluster, at least one LED marquee light wire or at least one illuminating line parallel or spiral twining around outside or external wall of the audio wire cluster and an acousto-optic controller. The audio wire cluster and the LED marquee light wires form a cluster which is coated by a transparent insulating layer. A main circuit board of the acousto-optic controller includes a sampling amplifier circuit component, an analog-digital conversion circuit component, a microprocessor and an output driver sequentially connected. The audio wire cluster is connected to the input end of the sampling amplifier circuit component. The LED marquee light wires are connected to the output driver. The acousto-optic audio signal cable is simple in structure, convenient to operate, dynamic, fashionable and capable of synchronously flickering light during tone and rhythm changes of instrumental performances and speeches.

In the process of mounting a joint terminal (5) into a first terminal accommodating portion (16) of a housing (15), tab terminals (6) of the joint terminal (5) move forward along tab entrance paths (26) formed in the housing (15). The tab entrance path (26) is formed with a cam portion (27) spiral about an axis thereof. As the tab terminal (6) moves forward in the tab entrance path (26), a follower portion (8) formed at an intermediate position of the tab terminal (6) is guided by the cam portion (27). Thus, the tab terminal (6) is twisted about an axis. In this way, resilient contact pieces (14) of female terminals (9A, 9B) face the tab terminals (6) in a plate surface direction of the tab terminals (6) and are connected to the tab terminals (6).