Abstract: This is achieved in an arrangement of a network forming a network topology with network components connected via data lines of a computer with an operating system and holding software for detecting the network components and the network topology is stored. An analysis tool is connected at a connection to the network to be examined and includes a computer and software developed for this combination and stored on this computer. This analysis tool has a processing unit, an integrated or external display, a network card for exchange of data via the connection with the network components in the network to be examined, and programming for automatically detecting all of the network components connected to one another in the network using the network card for automatically detecting all of the active switching nodes in the network via the connection with the network.

Abstract: A transfer system for the exchange of data between dispersed devices in stored program controls with feedback over the process that is to be controlled. For the real time data transfer between a plurality of central processing units as well as between I/O components and the respectively allocated central processing units, aside from a system bus with nonpersistent access behavior, at least one lateral bus is provided, the transfer protocol of which includes a priority-persistent access behavior and at which at least two central processing units are connected. Moreover, at least one I/O bus is allocated to each central processing unit. The transfer protocol of the I/O bus, which is connected to at least one I/O device, includes a priority-persistent access behavior. Devices for configuring, controlling and observing are connected to the system bus in the waiting area. Sensors and actuators are connected to the I/O devices.

Abstract: To permit universal attachment of a reflector to any type of luggage carrier, for example having a rectangular frame (1) with bent-down struts (5, 6) extending from longitudinal bars or rods (2, 3) in a transition zone (25, 26), a pair of engagement and holding elements (14) of essentially triangular shape are provided, preferably unitary with a resiliently deforming connecting plate (16) and made of plastic, and having internally projecting clamping elements (15) fitting around the frame parts in the transition zone. For assembly, the resiliently deformable connecting plate is deformed until the clamping elements snap around the rectangular frame, or the support struts respectively, and further resilient deformation is prevented by screwing there against a stiff reflector plate (13) carry carrying the reflector structure as such. The upper surface (125) of the holding elements (14) which fit against the frame in the transition zone may form an extension of the carrier surface.

Abstract: To facilitate manufacture of lightweight bicycle carriers, in particular the attachment of supporting struts (6, 7) to a frame (1) having longitudinal support rods (3) for example formed of aluminum, the longitudinal support rods have injection-molded attachment elements (12) molded thereof, made of resiliently expandable material, with an open slit (18) extending to an opening (17) therein, permitting cross elements (10, 11) of the support struts (6, 7) to be snapped therein, the projecting portions (15) then being held closed by outer clamping or holding rings (19) slipped over the projecting portion and securing the cross elements (10, 11) of the support struts in irremovable position on the holding elements.

Abstract: To permit attachment of a cycle carrier universally to any type of cycle with a rear fork structure of different rear fork elements and of respectively different mutual spacings, two U-clamps 2 are provided, separately and independently positionable around the fork elements 1 of the cycle; preferably, the inner surface of the U-clamps, at least in the region of engagement with the fork elements is lined with a yielding cushioning material. Screws are passed through elongated openings 5 formed in each one of the legs 4 of the U-clamps 2 to attach the cross bar 7 of the cycle carrier to the clamps. Preferably, a back-up connecting strip is positioned against the legs of the U-clamps at the side remote from the attachment of the cycle carrier cross bar.

Abstract: To permit accurate adjustment of a luggage carrier with respect to a bicycle frame, the luggage carrier is secured at one end to the bicycle frame, typically the rear fork thereof, and additionally has two pairs of rod-like supports located at staggered distances longitudinally along the frame, one rod, each, of a pair being arranged to converge towards the axle position of the frame and being bent at the terminal end, preferably flattened, to permit relative adjustment of the free ends of adjacent rod elements with respect to each other, and with the frame, preferably by a claw clamp seating against serrated surfaces on the ends of the rods.