An adapter which provides for the connection of remote and local devices to the data adapter as well as the necessary controls to move data to or from the processing unit via the XIC (Transmission, Interface Converter).; 一种适配器，它将远程和本地的通信设备连接到数据适配器，并提供所需的控制，使数据通 过传输接口转换器送入处理部件或相反从处理部件送回。