Communicating with other IMS TM systems using Multiple Systems Coupling

In addition to communicating with programs and terminals in your IMS TM system, your program can communicate with terminals and programs in other IMS TM systems through Multiple Systems Coupling (MSC).

MSC makes this possible by establishing links between two or more separate IMS TM systems. The terminals and transaction codes within each IMS TM system are defined as belonging to that system. Terminals and transaction codes within your system are called local, and terminals and transaction codes defined in other IMS TM systems connected by MSC links are called remote.

Related reading: For an overview of MSC, see IMS Version 15.2 Communications and Connections.