Abstract: This invention relates to an adapter for interprocessor communications and the method therefor. An adapter is included in a data processing system which has a plurality of central systems, each of the plurality of central systems having at least one serial channel control processor. The data processing system further has a dynamic channel exchange for providing switching logic thereby permitting each of the plurality of central systems access to a plurality of peripherals coupled to the dynamic channel exchange. The adapter is operatively connected to the dynamic channel exchange for providing communications between any pair of central systems. The adapter comprises a link control module which provides handshake control to perform message bit/byte synchronization and translation.