Abstract: An interface unit for processing a first signal and a second signal, the second signal set to different transmission rate from the first signal and/or a different signal type from the first signal, including a plurality of interface panels, each of the plurality of interface panels including: a storage device which stores a first logic circuit data corresponding to the first signal and a second logic circuit data corresponding to the second signal, a configuration function unit which controls to select the first logic circuit data or the second logic circuit data, and a programmable logic circuit which reconfigures the first logic circuit data or the second logic circuit data based on a selection by the configuration function unit.

Abstract: The present invention provides a network at a low cost with a reduced number of components and simple management among networks anticipated to become more and more complicated, the network being capable of quick pass change upon service addition/change and failure occurrence. Namely, the present invention realizes a network configuration unnecessary for replacement of interface panels upon pass change, by using a multi-rate compatible interface panel capable of freely changing a signal type to be processed, under control of an upper level operation.

Abstract: Granules of a polyvinyl chloride resin for preparation of paste which comprise 10% by weight or less of components having diameters of 10 &mgr;m or smaller and less than 0.5% by weight of over size components after classification using a 149 &mgr;m standard sieve, have a bulk density of 0.45 to 0.58 g/cm3 and give a plastisol comprising less than 0.