Field termination assembly (FTA) with quick mount

An apparatus comprising a field termination assembly (FTA), the apparatus comprising:

• a housing including one or more slots, each slot of the one or more slots configured to receive an adaptor module for one or more input/output (I/O) channels associated with an industrial process control and automation system, said adaptor module configured to perform at least one I/O function in the industrial process control and automation system;
• and
• a base coupled to said housing, said base configured to be secured to a support rail, said base includes an opening through which a pin extends to engage a plate to cooperatively grip a flange on the support rail,
• wherein said housing being configured to be mounted to said base.