UNI directional circuits are related to Ports with the TxRx property set to either Tx or Rx, and when the circuit is related to a port, a direction must be set to either AB or BA - as seen in the screenshot below.
The following diagram is an example of a UNI Directional circuit with 2 related Ports set in an AB direction
A UNI Directional circuit can also have Ports that are set in an AB and BA direction, as shown in the diagram below.
