A user equipment without service in a communication system measures the radio-frequency power in a bandwidth received by the UE on the possible downlink carriers in a frequency band that is supported by the UE. The supply means 60 has the structure that the vial container can pass in it and the vial container passage 68. The mating connector contact section includes at least three forward projecting beams. Grooved insulation boards with protective jacketing so constructed are also provided.