A communication system includes a first circuit card assembly having a first PCB and a first electrical connector with first contacts and a second circuit card assembly having a second PCB and a second electrical connector with second contacts. At least one of the PCBs include a slot configured to receive the other PCB when mated in a board mating direction. The first electrical connector is mated to the second electrical connector in a connector mating direction perpendicular to the board mating direction. The first contacts are mated to the second contacts in a contact mating direction as the first PCB and the second PCB are mated in the board mating direction and as the first electrical connector and the second electrical connector are mated in the connector mating direction. The contact mating direction is non-parallel to the board mating axis and non-parallel to the connector mating axis.

An electronic device including a stacked connector assembly is provided. In some embodiments, the electronic device includes: a first printed circuit board; a first electronic board-to-board connector mounted to the first printed circuit board; a second printed circuit board; a second electronic board-to-board connector mounted to the second printed circuit board and connected to the first electronic board-to-board connector; a first stacked connector mounted to the second printed circuit board; a second stacked connector connected to the first stacked connector; and a biasing member. The biasing member may bias the first board-to-board electronic connector together with the second electronic board-to-board connector, and the first stacked connector together with the second stacked connector.

An electronic device including a stacked connector assembly is provided. In some embodiments, the electronic device includes: a first printed circuit board; a first electronic board-to-board connector mounted to the first printed circuit board; a second printed circuit board; a second electronic board-to-board connector mounted to the second printed circuit board and connected to the first electronic board-to-board connector; a first stacked connector mounted to the second printed circuit board; a second stacked connector connected to the first stacked connector; and a biasing member. The biasing member may bias the first board-to-board electronic connector together with the second electronic board-to-board connector, and the first stacked connector together with the second stacked connector.

A riser card is disclosed. The riser card includes a circuit board that has two sides, two longitudinal edges extending along a length of the board, and two orthogonal edges extending along a width of the board. The card also includes a first bus connector along one of the longitudinal edges; a second bus connector on one side of the board extending substantially parallel to the longitudinal edges; and a third bus connector on the other side of the board extending substantially parallel to the orthogonal edges. The second bus connector is configured to connect an add-on unit to the card so that the add-on unit extends substantially perpendicular from the board. The third bus connector is configured to connect an add-on unit to the card so that the add-on unit extends substantially parallel to the board and the first edges.

A method, in some embodiments, comprises: providing a direct bonded copper (DBC) substrate including a plurality of copper traces; providing a guide plate having protrusions on a surface of the guide plate; mounting hollow bush rings onto the protrusions; mounting the bush rings onto the copper traces by aligning the protrusions of the guide plate with solder units on said copper traces; attaching the bush rings and one or more dies to the copper traces by simultaneously reflowing said solder units and other solder units positioned between the dies and the copper traces; and after said simultaneous reflow, removing the protrusions from the bush rings.

A solution is provided that can be used in a communication node. A case is provided that supports a card module. The card module includes a circuit board with a front edge and a rear edge and includes a chiclet mounted adjacent the front edge. A housing can be pressed onto the circuit board and chiclet and be retain the housing in place. A transformer box is provided is provided on the circuit board between the housing and the rear edge. A POE card can be mounted on the circuit board between the transformer box and the housing.

A communication system includes first and second circuit card assemblies mated such that first and second PCBs move relative to each other along a board mating axis parallel to a slot in the first PCB with the first PCB oriented perpendicular to the second PCB and with first and second mating ends of first and second electrical connectors oriented parallel to the board mating axis. The first and second circuit card assemblies are mated such that the first electrical connector and the second electrical connector move relative to each other along a connector mating axis perpendicular to the board mating axis. First mating interfaces of first contacts are mated to second mating interfaces of second contacts in a contact mating direction non-parallel to the board mating axis and non-parallel to the connector mating axis.

A tube used for producing an electrically conductive connection between an electrical conducting element and a printed circuit board of a light fixture. The use of the tube in the printed circuit board makes it possible, due to a corresponding configuration and a region which widens in relation to the longitudinal direction, that the tube can be connected to the printed circuit board or is held thereby and can be soldered. Additionally, the configuration or widened portion prevents soldering agent from penetrating into the tube, so that a wire for voltage supply can then be introduced into the tube and can be connected thereto by deformation. As a result, an automatic and reliable method is made possible, so that a cost saving is produced.

Examples herein relate to cuts in a circuit board. In some examples, a circuit board can include a signal connector located on the circuit board, and cuts extending through at least a body of the circuit board that are adjacent to the signal connector and extend from a perimeter of the circuit board to an inner portion of the circuit board, where the circuit board flexes relative to the signal connector responsive to the circuit board experiencing a force.

An all-metal side-inserted female connector has a top side, a front side, and a rear side. The rear side is formed with a guide hole for insertion of a conductive wire or an insertion pin. A pair of elastic pieces is provided between the front side and the rear side, facing the guide hole, for clamping the conductive wire or insertion pin. The front side is formed with a limit hole aligned with the guide hole for limiting the amplitude of the swing the inserted conductive wire or insertion pin. The front side and the lower end are formed with a front weld leg and a rear leg at respective lower ends thereof. The front weld leg and the rear weld leg are electrically connected to a circuit board.