AIRBUS58,
The rudder pedals are connected to the ELACS, and they in turn are connected to the FACs which electrically drive the servo jacks. One FAC is active at a time. The other FAC serves as a backup. As the primary computer, the ELAC computes the turn coordination and yaw damping orders. The signals are sent to the FACs. The FACs control hydraulic yaw damper actuators that position the rudder servojacks.
The FACs also limit the rudder travel based upon the aircrafts speed, if the FACs fail you get full rudder when the flaps are deployed.
The rudder pedals are also manually connected to the rudder servojacks by good old cables so you have manual backup control if the computers go offline and you still have at least one of the hydraulic systems.
The artificial feel unit provides feedback to the rudder pedals and moves the pedals when rudder trim is applied. The rudder pedals do not move in response to turn coordination or yaw damping action.
Zeke