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.

A system includes processing circuitry communicatively coupled to a coaxial cable as well as a sensor, such as a light detection and ranging (LIDAR) sensor communicatively coupled to an unshielded twisted pair (UTP) cable. The processing circuitry and LIDAR sensor may be communicatively coupled to one another via a UTP-to-coaxial converter that is communicatively coupled to both the coaxial cable and the UTP cable. The UTP-to-coaxial converter includes filter circuitry configured to receive one or more signals generated by the LIDAR sensor and generate one or more filtered signals by blocking a portion of the one or more signals having a frequency in a first frequency range. The UTP-to-coaxial converter is configured to send the one or more filtered signals to the processing circuitry via the coaxial cable.

An apparatus has a flexible elongated body, a plurality of cables extending in the body along a lengthwise direction, and a first connection assembly on a longitudinally first end of the body connecting to the plurality of cables. Each of the plurality of cables comprises a plurality of wires for transmitting signals and/or power to the first connection assembly.

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.