Abstract: An arrangement for a switching function unit for Ethernet having a number of active components of the Ethernet which are combined by a switching function unit to form a functional unit; and at least three mutually independent power supplies for supplying power to the active components, wherein a first of the at least three power supplies is a local power supply for the switching function unit, a second of the at least three power supplies is a first extraneous power supply via Ethernet for the switching function unit, and a third of the at least three power supplies is a second extraneous power supply via Ethernet for the switching function unit.

Abstract: A test station for testing a fluid pump and/or a fluid injector has a fluid-pump receiving device for accommodating a fluid pump, a fluid-injector receiving device for accommodating a fluid injector, a fluid line which hydraulically connects the fluid-pump receiving device to the fluid-injector receiving device and which enables a fluid flow from the fluid pump to the fluid injector during operation, a sealed cooling circuit through which coolant is circulating during operation, and a first heat exchanger, which is developed and disposed in the fluid line so as to have the fluid flow and the coolant flow pass through it during operation such that a heat transfer takes place between the fluid flow and the coolant flow.

Abstract: A test stand for testing a fluid injection pump and/or a fluid injector has a device for conditioning a test fluid used for the testing. The device has a tank to accommodate and store the test fluid, a first fluid removal line to withdraw test fluid from the tank and to convey it to the fluid injection pump, and a cooling circuit for cooling the test fluid stored inside the tank. The cooling circuit has a second fluid removal line and a return line. The fluid removal line is to withdraw test fluid from the tank and is connected to a heat exchanger, which cools the test fluid withdrawn from the tank. The return line is connected to the heat exchanger and returns the test fluid from the heat exchanger back into the tank.

Abstract: An arrangement for a switching function unit for Ethernet having a number of active components of the Ethernet which are combined by a switching function unit to form a functional unit; and at least three mutually independent power supplies for supplying power to the active components, wherein a first of the at least three power supplies is a local power supply for the switching function unit, a second of the at least three power supplies is a first extraneous power supply via Ethernet for the switching function unit, and a third of the at least three power supplies is a second extraneous power supply via Ethernet for the switching function unit.

Abstract: A test stand for testing a fluid injection pump and/or a fluid injector has a device for conditioning a test fluid used for the testing. The device has a tank to accommodate and store the test fluid, a first fluid removal line to withdraw test fluid from the tank and to convey it to the fluid injection pump, and a cooling circuit for cooling the test fluid stored inside the tank. The cooling circuit has a second fluid removal line and a return line. The fluid removal line is to withdraw test fluid from the tank and is connected to a heat exchanger, which cools the test fluid withdrawn from the tank. The return line is connected to the heat exchanger and returns the test fluid from the heat exchanger back into the tank.

Abstract: A device for ensuring the safety of a motor vehicle service workplace has at least one receiver for receiving a signal emitted by at least one associated transmitter, and an evaluation device which is configured to determine on the basis of the received signal whether the at least one transmitter is located in a danger zone of the motor vehicle service workplace. The device for ensuring the safety is configured to bring devices at the motor vehicle service workplace into a safe condition when the at least one transmitter is located in a danger zone.

Abstract: A test station for testing a fluid pump and/or a fluid injector has a fluid-pump receiving device for accommodating a fluid pump, a fluid-injector receiving device for accommodating a fluid injector, a fluid line which hydraulically connects the fluid-pump receiving device to the fluid-injector receiving device and which enables a fluid flow from the fluid pump to the fluid injector during operation, a sealed cooling circuit through which coolant is circulating during operation, and a first heat exchanger, which is developed and disposed in the fluid line so as to have the fluid flow and the coolant flow pass through it during operation such that a heat transfer takes place between the fluid flow and the coolant flow.

Abstract: A device for ensuring the safety of a motor vehicle service workplace has at least one receiver for receiving a signal emitted by at least one associated transmitter, and an evaluation device which is configured to determine on the basis of the received signal whether the at least one transmitter is located in a danger zone of the motor vehicle service workplace. The device for ensuring the safety is configured to bring devices at the motor vehicle service workplace into a safe condition when the at least one transmitter is located in a danger zone.