The standard TLM 2.0 approach to modeling requires the user to derive their own classes from the standard TLM 2.0 sockets, so that those sockets can then implement the TLM 2.0 interfaces. Modules then instantiate these derived sockets and use the bind function to connect them to sockets on other modules.

This is a very flexible approach, but the need to define new derived classes for sockets is an unnecessary layer of complexity for simple modeling. For such uses, the TLM 2.0 standard defines a number of convenience sockets which can be instantiated directly by modules, and which specify their interface functions as callbacks.

These convenience sockets are used throughout the case study in this application note.