The present invention is a backplane board including a first circuit board, a second circuit board, a first slot in which a first connector is connected with the first circuit board, and a second slot in which a second connector is connected with the second circuit board. The first connector and the second connector are arranged so that pin arrangement of the first connector may be shifted by at least one column in a longitudinal direction against pin arrangement of the second connector.

A backplane and a communications device are disclosed. The backplane includes: at least one fixing plate, multiple connectors, and multiple flexible cables, where signal connection is implemented between corresponding connectors by means of the flexible cables, each of the connectors is provided with a housing and multiple signal pins installed on the housing, and the housing is installed on the fixing plate and is provided with a jack for insertion of a connector of a subcard in the communications device; one end of each signal pin is inserted into the jack, and the other end is connected to each flexible cable. When the communications device provided with the backplane transmits a high-rate signal, transmission quality and a transmission rate are relatively high.

A removable video module for a backlit liquid crystal display (LCD) contained within a chassis and having a timing and control board (TCON) with a board edge connector and an access opening in the chassis. The module preferably having a video input connection and means for generating a Low Voltage Differential Signaling (LVDS) video. The video module also preferably has a board edge connector adapted to connect with the board edge connector on the TCON, where the video module is adapted to fit through the access opening to connect with the TCON. Other embodiments may utilize a backplane where the video module and a power module are adapted to connect with the backplane and electrically communicate with the rest of the display. Outputs for either the video signal, power supply, or both may be provided so that a plurality of displays may be daisy-chained together.

A high-speed router backplane is disclosed. The router backplane uses differential signal pairs on multiple signal layers, each sandwiched between a pair of digital ground layers. Thru-holes are used to connect the differential signal pairs to external components. To reduce routing complexity, at least some of the differential signal pairs route through a via pair, somewhere along their path, to a different signal layer. At least some of the thru-holes and vias are drilled to reduce an electrically conductive stub length portion of the hole. The drilled portion of a hole includes a transition from a first profile to a second profile to reduce radio frequency reflections from the end of the drilled hole.

A cabinet for housing electronic plug-in cards has front and rear card baskets for inserting plug-in cards and first and second vertical backplanes. The front side of the first backplane faces the front of the cabinet and the front side of the second backplane faces the back of the cabinet. A distance piece connects the two backplanes and a counterbore is disposed in at least one of the rear sides of the two backplanes. The depth of the counterbore or the residual thicknesses of the backplane after drilling the counterbore is sized such that the distance between the front side of the second backplane and the front of the cabinet is a predetermined value. This ensures that the plug-in cards pushed onto the second backplane are completely received inside the rear card basket and the front plate of the plug-in cards ends flush with the rear card basket.

In accordance with the various embodiments disclosed herein, electrical connector footprints, such as printed circuit boards, is described comprising one or more of signal traces that each include a first section that extends parallel to the linear array direction and a second section extends in a direction that is different than the linear array direction.

A control module attached to a lighting fixture and having a front cover portion may comprise one or more sensors, such as a daylight and/or occupancy sensor, for sensing information through the front cover portion. The control module may have a main printed circuit board (PCB) that extends from a front side to a rear side of the control module, and a sensor PCB perpendicular to the main PCB to enable at least one sensor attached to the sensor PCB to face the front side of the control module. The main PCB may comprise a wireless communication circuit and an antenna for communicating radio frequency (RF) signals, wherein at least a portion of the antenna is located within a plastic lip of the front cover portion of the control module. The control module may further have a conductive enclosure to reduce radio-frequency interference noise from coupling into the antenna.

A circuit module includes a circuit module substrate having an area smaller than a large-scale circuit board, an electronic circuit component mounted on the circuit module substrate, a connection pin provided to the circuit module substrate, and a circuit-module-substrate-side fitting structure part provided to the circuit module substrate. A pin receptacle and the connection pin are electrically connected to each other. A non-conductive thermal adhesive layer is formed between a surface of the circuit module substrate and a surface of a base material of the large-scale circuit board facing to each other, the non-conductive thermal adhesive layer electrically insulating and thermally joining the surfaces by a non-conductive thermally conductive material.

A control module attached to a lighting fixture and having a front cover portion may comprise one or more sensors, such as a daylight and/or occupancy sensor, for sensing information through the front cover portion. The control module may have a main printed circuit board (PCB) that extends from a front side to a rear side of the control module, and a sensor PCB perpendicular to the main PCB to enable at least one sensor attached to the sensor PCB to face the front side of the control module. The main PCB may comprise a wireless communication circuit and an antenna for communicating radio frequency (RF) signals, wherein at least a portion of the antenna is located within a plastic lip of the front cover portion of the control module. The control module may further have a conductive enclosure to reduce radio-frequency interference noise from coupling into the antenna.

A printed circuit board laminated device includes a circuit board unit, a bracket unit, a cover plate unit and a coupled unit. The circuit board unit includes a first control circuit and a second control circuit disposed on a circuit board body. The bracket unit includes a hollow bracket body disposed on the circuit board unit along a laminating direction. The cover plate unit is disposed on the bracket unit along the laminating direction and opposite to the circuit board unit to cooperatively define a compartment. The coupled unit includes first and second coupled elements which are securely connected with the circuit board body and in the compartment and which are respectively and electrically connected with the first and second control circuits. The second coupled element responds to the first coupled element to generate a sensing signal.