LTERM naming

To facilitate the use of the CHNG call, define a convention for naming LTERMs. One method is to set the LTERM name to be a combination of the workstation and component identifiers.

Example: IMS considers the 4704 keyboard and display system components as one component, the 4706 magnetic stripe reader as another component, and the 4710 receipt printer as yet another component. Thus, workstation 100 can have three components: WS100DS (4704), WS100MS (4706), and WS100RP (4710). Such a standard permits an MPP to interrogate the I/O PCB (LTERM name field) to identify the workstation and then to specify the proper alternate PCB for output using the CHNG call.

For a multiple-component terminal, such as a SLU P, you must ensure that IMS creates enough queues to service the terminal. You can use an exit routine or a specific user descriptor for that unique logical unit to ensure that IMS creates the required number of queues.