An electrical coupling transfers electrical signals between a camera head and a cable and comprises a first part associated with the camera head and a second part associated with the cable and connectable to the first part. The coupling establishes contact between connectors of the first and second parts. The first part comprises a first connection position for reception of the second part, and a second connection position for reception of the second part. The connectors of the first and second parts comprise dot shaped connectors and elongated connectors. One of the first and second parts comprise the dot shaped connectors, and the other one comprises the elongated connectors. Each dot shaped connector is associated with one of the elongated connectors, and the connectors are arranged such that each dot shaped connector connects with an associated elongated connector in both the first connection position and the second connection position.

The disclosure relates to a wearable device, including a body, at least three conductive pins, and a strap. The body defines an accommodation cavity and a mounting slot. The at least three conductive pins are spaced apart from each other, located in the mounting slot and electrically connected to the mainboard. The strap includes a strap body, a locking end connected to the strap body, and a conductive component positioned at the locking end. The locking end is configured to be detachably positioned in the mounting slot. When the locking end is positioned in the mounting slot, the conductive component is electrically connected to at least two of the at least three conductive pins. The body may provide a user with a display interface. The displaying characteristics of the display interface correspond to at least two of the at least three conductive pins that are electrically connected.

A banana plug including a body, a male portion, a female portion, and a lever. The male portion is configured to extend from the body to electrically connect with a receptacle. In one example, the receptacle is a piece of audio/video (AV) equipment. The female portion is configured to receive a wire and/or other electrical component. The lever is configured to actuate between an open position and a closed position. In the open position, the lever is configured to actuate an internal spring to receive a wire. In the closed position, the lever is configured to release the internal spring to secure and/or retain the wire via a compression force.

A banana plug including a body, a male portion, a female portion, and a lever. The male portion is configured to extend from the body to electrically connect with a receptacle. In one example, the receptacle is a piece of audio/video (AV) equipment. The female portion is configured to receive a wire and/or other electrical component. The lever is configured to actuate between an open position and a closed position. In the open position, the lever is configured to actuate an internal spring to receive a wire. In the closed position, the lever is configured to release the internal spring to secure and/or retain the wire via a compression force.

An optical module includes a housing, an optical component, and a power supply component. The housing is provided with a first socket and a second socket. The optical component includes a first optical connector, an optical-to-electrical conversion component, and a second optical connector that are sequentially connected. The power supply component includes a first electrical connector, a power supply line, and a second electrical connector that are sequentially connected. Both the optical-to-electrical conversion component and the power supply line are located in the housing, the first optical connector is located in the first socket, a part that is of the first electrical connector and that is exposed from the housing is located at any position at the first end of the housing.

An electrode connection structure includes a first electrode unit that includes first electrodes formed concentrically, and a second electrode unit that includes a second electrode formed into a needle shape axially movable forward and rearward and is electrically connectable to the first electrode unit, and in the electrode connection structure, the second electrode unit includes a plurality of the second electrodes that is arranged in a circumferential direction and arranged at different radial positions, and the plurality of the second electrodes is electrically connected to the first electrodes arranged at different radial positions, respectively.

A terminal block including a body, a plug, and a lever. The plug extends from the body to connect to an outlet. As the plug connects to an outlet, the plug is configured to receive an electrical pin and/or another conductor. In one example, the outlet and pin are part of an audio device. The body is configured to receive a wire and/or another conductor. The lever is configured to actuate between an open position and a closed position. In the open position, the lever is configured to compress an internal spring to receive a wire. In the closed position, the lever is configured to release the spring such as to retain the wire.

An optical module includes a housing, an optical component, and a power supply component. A second end of the housing is provided with a second socket, and the second end of the housing is an end part configured to be inserted into an optical communication device. The optical component includes a second optical connector, and the power supply component includes a second electrical connector. Both the optical component and the power supply component are located in the housing, both the second optical connector and the second electrical connector are located in the second socket, and positions of the second optical connector and the second electrical connector are independent of each other.

A composite module includes a housing, an optical component, and a power supply component. A first end of the housing is provided with a first socket, and a second end of the housing is provided with a second socket. The optical component includes a first optical connector, an optical-to-electrical conversion component, and a second optical connector. One end of the optical-to-electrical conversion component is connected to the first optical connector, and the other end of the optical-to-electrical conversion component is connected to the second optical connector. The power supply component includes a first electrical connector, a power supply line, and a second electrical connector. One end of the power supply line is connected to the first electrical connector, and the other end of the power supply line is connected to the second electrical connector.

An electrical connector system can comprise a first connector and a second connector. The first connector can include a first threaded coupling feature defining a first axis. The first connector can also include a first electrical contact with a first contact surface having an annular configuration centered on the first axis by a radius. The second connector can include a second threaded coupling feature defining a second axis. The second connector can also include a second electrical contact with a second contact surface offset from the second axis by the radius. The first and second threaded coupling features can be operable to engage one another to couple the first and second connectors to one another such that the first and second axes are aligned, thereby facilitating contact or separation of the first and second contact surfaces upon relative rotation of the first and second connectors.