The described connector assemblies are useful in wire-to-board systems. The assemblies which include a free-end connector that is attached to a twin-ax cable, and a fixed-end connector that is attached to a board. Embodiments include a free-end terminal set including a first signal terminal, a second signal terminal and a ground plate. The ground plate has a horseshoe shape and provides a ground terminal on opposing sides of the first and second signal terminals. Additionally, embodiments include a locking system between the free-end connector and fixed-end connector, and lead designs for the fixed-end connector utilizing a similar horseshoe shape as that used for the ground plate of the free-end connector.

A safe grounding apparatus (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.

A safe grounding apparatus (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.

An electrical connector and an electrical connector assembly are provided. The electrical connector assembly includes: a mating assembly including a support plate and multiple insertion portions provided on the support plate and protruding downward out of the support plate; and an electrical connector. The electrical connector includes: a substrate, provided with multiple accommodating holes running through the substrate vertically; and multiple terminals accommodated in the accommodating holes. Each terminal has a base and two clamping portions configured to clamp a corresponding insertion portion. The two clamping portions are located in front of the base. A top end of the base is lower than top ends of the two clamping portions. When the two clamping portions jointly clamp the corresponding insertion portion, a portion of the corresponding insertion portion lower than the top ends of the clamping portions is located right above the base of an adjacent terminal.

A ground shield includes a plurality of contact members configured to contact the ground contacts of a column of contacts of an electrical connector, so as to electrically common the grounds to each other.

An electrical device includes a substrate having a plurality of signal contacts and a ground contact along a surface of the substrate. A communication cable includes a differential pair of signal conductors, a grounding element that surrounds the signal conductors, and a cable jacket surrounding the signal conductors and the grounding element. Each of the signal conductors has a wire-terminating end that is terminated to a corresponding signal contact of the substrate, the wire-terminating end projecting beyond a jacket edge of the cable jacket. A ground termination component has a main panel electrically coupled with the ground contact, and a strain relief element engaged with at least a portion of the communication cable. The strain relief element includes a connective terminal electrically coupled to the grounding element.

A ground shield includes a plurality of contact members configured to contact the ground contacts of a column of contacts of an electrical connector, so as to electrically common the grounds to each other.

A plug connector assembly includes a housing, a printed circuit board, a cable, and a wire management block, the printed circuit board including first conductive pads and second conductive pads, the cable including plural first core wires and second core wires, the first core wire including a first inner conductor and a shielding layer, the second core wire including a second inner conductor, wherein the wire management block is provided with a plurality of clamping slots, the second core wire is clamped in the clamping slot and exposes the second inner conductor to the front side of the wire management block, the first inner conductors are arranged in a row and soldered to the first conductive pads at one time, the second inner conductors and the shielding layers are arranged in a row and soldered to the second conductive pads of the printed circuit board at one time.

The described connector assemblies are useful in wire-to-board systems. The assemblies which include a free-end connector that is attached to a twin-ax cable, and a fixed-end connector that is attached to a board. Embodiments include a free-end terminal set including a first signal terminal, a second signal terminal and a ground plate. The ground plate has a horseshoe shape and provides a ground terminal on opposing sides of the first and second signal terminals. Additionally, embodiments include a locking system between the free-end connector and fixed-end connector, and lead designs for the fixed-end connector utilizing a similar horseshoe shape as that used for the ground plate of the free-end connector.

A safe grounding apparatus (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.