ETO terminal-LTERM relationship

The system programmer is responsible for the relationship between a terminal that is in session with IMS and a particular user's LTERMs.

For a single-component terminal (such as a SLU 2), IMS creates a single default LTERM name that is the same as the user ID that was supplied during signon. Using an exit routine or a user descriptor, you can give the LTERM a different name.

For a multi-component terminal (such as a SLU P), you need to ensure that sufficient LTERMs are created in order to use that terminal. You can use exit routines, installation-created descriptors, or node user descriptors to ensure that a sufficient number of LTERMs is created. Otherwise, IMS creates a single LTERM that is allocated to the first component of the terminal. Regarding node user descriptors, the user needs to use the node user descriptor to establish the correct relationship between the LTERM and the node, either explicitly or in the Signon exit routine (DFSSGNX0).