Usage of element INTER 203 in ANSYS APDL
 

Hi guys. I am working on a 2-D project in ANSYS Mechanical APDL. I need to define a boundary between two components for which I need to use INTER 203 element. Can anybody please help me with the proper instructions on how to use the above element in a 2-D working interface. I am using element PLANE 183 for model.
Thank you