Abstract: Two daughter cards connected by bus connectors to a motherboard have integrated circuits connected to each other and to an integrated circuit on the motherboard through a bus network. The bus network is also connected by a bus cable connected at the top of the two daughter cards so as to form a loop within the bus network.

Abstract: Packaged signal routing circuits (e.g. on printed circuit cards or boards), route pulse signals with very short rise times from a lossy driver to multiple devices. In these routing circuits, a complex network of conductors branches from a common junction adjacent the driver output into multiple conduction paths of unequal length. In accordance with the invention, the internal impedance of the driver is matched to the aggregate characteristic impedance of the branch paths, and a lossless compensating circuit is attached to a shortest branch path. The compensating circuit is designed to transfer signal reflections of predetermined form to the branching junction at the driver via the shortest branch.