The ComplexLib uses three kinds of connectors: one for phasor
description of single-phase AC circuits (ComplexPin), one
for phasor description of multi-phase AC circuits
(ComplexPlug), and one for coupling with components from
rotational mechanics (Flange_a or
Flange_b).
The phasor-based connectors are defined within the corresponding
packages, see
The mechanical connector of the Modelica Standard Library is used for mechanical subsystem in the package ComplexLib.Machines.