A coaxial plug-type connector arrangement includes two plug-type connectors, which can be plugged one inside the other so as to latch in along a plug axis. The composite sheet material comprises a scrim embedded in a foamed resin. The clamping structures have at least two separate clamp parts that surround the water pipe or other member. The excipient may be mixed with a therapeutically active agent to form a dosage form. The method may include determining that a mobile unit is to be handed over between a first carrier operating according to the first system type and a second carrier operating according to the second system type based on a loading of at least one of the first and second carriers. The accessory device includes a control processor and a power supply unit, wherein the power supply unit supplies electrical energy to the control processor in response to a control signal received from the basic device.