A filter arrangement may include a housing having two front walls substantially extended on both sides of a housing center plane and a circumferential wall connecting the front walls. Moreover, block copolymers of vinyl halide monomers and acrylic monomers are described by generally polymerizing either the vinyl halide monomers or acrylic monomers utilizing an organo halide initiator in the presence of either a metal catalyst or a metal-free catalyst and subsequently polymerizing thereon the remaining type of monomer. The PHY couples to a data transfer medium and carries out data transfers at a PHY data rate. The method is characterized by detection of device information of a mobile station that attaches to the network.