Abstract: According to a first aspect the invention relates to a device forming a central controller (C) intended to be linked to a remote peripheral (P1-PN) by way an electrical power line (L), comprising a power transmitter (1) and a low-pass litter (CC—BF) arranged between the power transmitter and the electrical line, as well as means for transmitting/receiving data (3) in baseband and a high-pass filter (CC—HF) arranged between the data transmission/reception means and the electrical line, the electrical line being of the kind mutualized for the transmission of power at low frequency from the central controller to the remote peripheral and for the simultaneous bidirectional transmission of data in baseband at high frequency between the central controller and the remote peripheral.

Abstract: An AC/DC converter has at its input a rectifier circuit connected in series with a primary winding of an isolating transformer and with a chopper switch (T1) connected to a pulse width modulation control circuit. The isolating transformer has a first secondary winding wound in the same direction as the primary winding and connected to an output line of the converter via a diode (D4). The output line is connected to an output capacitor (Cout), wherein the isolating transformer has a second secondary winding that is wound in the opposite direction to the primary winding and that is connected directly to the output line via a diode (D2).

Abstract: A selective connection device allowing the connection of at least one peripheral to a target computer and a selective control system comprising such a device. It relates to the field of devices for the selective connection of a control device composed of input/output peripherals to various target computers. The selective connection device affords security guarantees by preventing communication between the various target computers that may be controlled.

Abstract: An AC/DC converter has at its input a rectifier circuit connected in series with a primary winding of an isolating transformer and with a chopper switch (T1) connected to a pulse width modulation control circuit. The isolating transformer has a first secondary winding wound in the same direction as the primary winding and connected to an output line of the converter via a diode (D4). The output line is connected to an output capacitor (Cout), wherein the isolating transformer has a second secondary winding that is wound in the opposite direction to the primary winding and that is connected directly to the output line via a diode (D2).

Abstract: A mass memory device is disclosed as including a memory module, a management module for physical management of the memory module, and a control module for controlling the management module. The management module is connected for communication with the control module by an MII-family bus.

Abstract: A one-way connection device between at least a first Ethernet interface and a second Ethernet interface respectively comprising a first transmitter-receiver and a second transmitter-receiver each provided with external message transmit terminals and external message receive terminals, the device comprising a connection member for connecting the external transmit terminals of the first transmitter-receiver to the external receive terminals of the second transmitter-receiver, and a line-integrity signal transmit member connected to the external receive terminals of the first transmitter-receiver, the external transmit terminals of the second transmitter-receiver being kept disconnected from the external receive terminals of the first transmitter-receiver.

Abstract: The present invention concerns a selective connection device allowing the connection of at least one peripheral to a target computer and a selective control system comprising such a device. It relates in particular to the field of devices for the selective connection of a control device composed of input/output peripherals to various target computers. More particularly, the invention concerns such a device affording security guarantees by preventing communication between the various target computers that may be controlled. This device makes it possible to connect at least one computer peripheral selectively to a target computer among a plurality of target computers. The connections between the peripheral and the target computer are connections made physically unidirectional. In the case where information input peripherals and information output peripherals are to be connected to the target computer, two unidirectional selection devices in opposite directions are used.

Abstract: A one-way connection device between at least a first Ethernet interface and a second Ethernet interface respectively comprising a first transmitter-receiver and a second transmitter-receiver each provided with external message transmit terminals and external message receive terminals, the device comprising a connection member for connecting the external transmit terminals of the first transmitter-receiver to the external receive terminals of the second transmitter-receiver, and a line-integrity signal transmit member connected to the external receive terminals of the first transmitter-receiver, the external transmit terminals of the second transmitter-receiver being kept disconnected from the external receive terminals of the first transmitter-receiver.