The present invention relates to diagnostic applications. 5\u02dc10 \u03bcm, wherein the entire structure is performed by a bridge process without an extra gas filling procedure in the gap. The thus obtained polyarylenesulfide resin compositions can be used as superior engineering plastics in wide application fields such as electronic and other devices. The trunk service unit may provide subscriber-facing signaling to communicate with the subscriber network and network-facing signaling to communicate with a stimulus-based network.