Master terminal

The master terminal is the central point of control for IMS. If a VTAM® master terminal is defined, IMS establishes a connection with it during startup.

Recommendation: Although several device types are supported, a VTAM SLU 2 device is the preferred type for the master terminal.

Restriction: Neither an ETO terminal nor an LU 6.2 terminal can be defined as the primary or secondary master terminal.

The master terminal operator (MTO) must be familiar with all aspects of operating the system. The physical location of the master terminal in relation to the computer console is important. If, for security reasons, the MTO and master terminal are not close together, telephone communication should be provided.