An electrical connector assembly includes a spring member having a generally C-shaped body extending between a leading edge and a trailing edge. A method for efficiently producing this catalyst. When a packet discard occurs after passing through the relay device or the like, a packet interval having been lengthened by the packet discard remains unshortened for transferring packets. The first group of antenna portions transmits andor receives at a first frequency band, while the second antenna portion transmits andor receives at a second frequency band different than the first band. The hook strip exhibits a transition section projecting at least approximately at a right angle from the center strip, and a hook section, which runs at least approximately at a right angle to the transition section in the direction of the supporting strip and which defines with the supporting strip a jaw for inserting the interlock of the sheet pile.