Cisco offers a wide variety of connectivity, expansion and upgrade options to accommodate the range of application needs in customer networks. The network modules assure customers that they can choose a connectivity solution that fits their requirements. They are easily and inexpensively upgradeable as customer requirements change.The second-generation CIP2 provides a connection to IBM or IBM-compatible mainframes. It supports both IBM mainframe-cabling standards: parallel channel (also called bus and tag) and ESCON architecture.