You can know about Event Integration Facility known as EIF Connector through the information provided here.
IBM Security Directory Integrator uses the capabilities of the Event Integration Facility in the process of integration with enterprise systems like Netcool/OMNIbus and IBM® Tivoli® Enterprise Console. EIF enables IBM Security Directory Integrator to create and send alerts and status information that can be recognized by the Netcool/OMNIbus Event Management system as events.
The EIF Connector allows IBM Security Directory Integrator to both send and receive EIF event messages, facilitating bi-directional communications with EIF-capable systems like TEC and Netcool/Omnibus.
Sending is done using the Connector AddOnly mode, while reading events is handled by Iterator mode.