The LU name of the IMS server (also known as the ACBNAME or VTAM APPLID). Specify an LU name of up to eight characters. This
name must match the ACBNAME defined in an APPC/MVS LU definition for the target IMS system.
MCO:
The LU name of the CICS server (also known as the ACBNAME or VTAM APPLID). Specify an LU name of up to eight characters.
MFA:
The LU name of the Mainframe Access Data Connect server (also known as the ACBNAME or VTAM APPLID). Specify an LU name of
up to eight characters.