A central vacuum cleaning system including a receptacle for receiving dirt; conduits terminating in valves to which a flexible hose may be attached; a motor for generating airflow through the conduits to the receptacle; a motor control circuit controlling power to the motor; and a remote module receiving, through a communications medium from the motor control circuit, signals indicating an operating condition of the central vacuum cleaning system.

An assembly has a connector, a circuit board, a cable, a light pipe, and an outer casing. The connector has an insulating body with conductive terminals fixed therein. The circuit board is behind the connector, is electrically connected with two conductive terminals, and has two light-emitting elements. The cable has a plurality of wires, and the conductive terminal is electrically connected with the wire. An inside of the light pipe is formed with a first receiving cavity that receives the connector and the circuit board therein. The outer casing has first and second insulating casings which are latched to each other and are combined to form a second receiving cavity. The light pipe is received in the second receiving cavity and is partially exposed out of the outer casing. Light from the light-emitting elements emits outwardly via the light pipe. The cable extends rearward out of the outer casing.

A connector housing with heat dissipation structure includes a housing, a heat dissipation unit and a holding member. A first end part of the holding member is fixed to a top plate of the housing by using a first tongue piece engaged with a fastening piece, so an area of an opening of top plate is decreased and the EMI shielding effect is better. Two side arms of the holding member pass through the trenches inside the heat dissipation unit, such that the width of the heat dissipation unit is not limited and a heat dissipation area can be increased. The second end part of the holding member includes a second tongue piece plugged into a convex hull at a back cover, and an arrival end of the second end part withstands a stop part, so the holding member is not released easily and can endure an external force.

A traceable cable assembly includes a traceable cable having at least one data transmission element, a jacket at least partially surrounding the at least one data transmission element, and a tracing optical fiber incorporated with and extending along at least a portion of a length of the traceable cable. The traceable cable assembly also includes a connector provided at each end of the traceable cable. Each connector has a connector housing having opposed first and second ends, the second end being coupled to the traceable cable, and a diffuser supported by the connector housing. The connector housing is configured to receive tracer light from the tracing optical fiber and allow the tracer light to leave the connector housing. The diffuser is also configured to diffuse the tracer light leaving the connector housing.

A tool for programming a controller of an electric motor by engaging a connection block of the motor and providing high voltage power and communicating programming signals to the controller. The tool includes a body having an interface for engaging the connection block, and internal wiring presenting tool terminals at the interface for making contact with corresponding motor terminals to allow for providing power and communicating signals between the tool and the controller. An energy-limited transformer having an isolated high impedance secondary winding provides both electrical isolation to protect against shock and low energy output to protect against arc flash. Redundant interlocks include a software interlock which allows the power to be present at the interface only during actual programming of the controller. A light ring encircling the body indicates the presence of high voltage and is visible from multiple directions.

A plug connector assembly including a cable connected to a plug connector, the plug connector including an insulative cover having a light region, a printed circuit board (PCB) received in the insulative cover and having a first surface and an opposite second surface, a mating member mounted on the PCB and extending through the insulative cover, a pair of light-emitting diode (LED) lamps, and a light guide disposed between the two LED lamps, wherein the mating member is mounted on the first surface of the PCB and the two LED lamps are mounted on the second surface of the PCB and wherein the light guide has a top face exposed to the light region of the insulative cover.

A central vacuum cleaning system control subsystem for use in a central vacuum cleaning system having a motor includes a central vacuum unit control module with a receiver for wirelessly receiving command signals, and a power stage for controlling the motor in accordance with command signals received through the receiver. The control module is stable in high ambient temperature. Current flowing to the motor is sensed, and motor overcurrent and undercurrent conditions are determined. The control module determines when the motor is in an overcurrent condition. Power stage has a triac for controlling power to the motor. The control module also has a microprocessor that compares the current sensed against a normal operating current to determine overcurrent condition. Power to motor ceases when overcurrent condition exists. A generator is powered by air flow in a cleaning system for production of electrical energy.

An electronic device system can include an electronic device. The electronic device can include a receptacle, and a device logic driving status unit configured to generate a status signal indicating activity of the electronic device, and a communications cable. The communications cable can include a first plug configured to connect to the receptacle and receive the status signal, wherein the first plug includes a status indicator configured to indicate activity of the electronic device based on the status signal.

A card edge connector includes an insultive housing, a plurality of conductive terminals retained in the insultive housing and a metal frame retained in the insultive housing. The insultive housing defines two sidewalls extending along a longitudinal direction and two endwalls connected to the longitudinal ends of the sidewalls. The metal frame is integrally formed in the insulative housing and defines an elongated flat portion and a pair of fixing portions extending downwardly from both longitudinal ends of the flat portion, the flat portion is embedded into an upper portion of the insulative housing.

The invention relates to a socket insert for an electrosurgical device with a front plate (10) comprising at least one plug opening (11), first and second side walls (12, 13) which are connected to the front plate (10) and bound a receiving space (14) for electronic components, and at least one latching device (15), which is connected to the first side wall (12) and can be transferred from a locked position into an unlocked position. At least the first side wall (12) includes a guide channel (16), which forms an access hole (17) in the front plate (10) and through which the latching device (15) can be manipulated for unlocking. The invention also relates to an electrosurgical device with a socket insert and a set with a removal tool.