Terminal Configurations

[MohamedIsmael]

I want to know the meaning of each type of these termeinals, like (Port one, port two)  in which direction is it determined؟

[RobertKrisher · Accepted solution]

Directional terminal configurations control the flow within a device, but do not affect the directionality of flow of the lines connected to them. Subnetwork controllers, and whether they're a sink or source, determines what is upstream and downstream in your network.

Look at your connectivity rules to determine how to appropriately connect lines to devices with that terminal configuration. In the case of port two in the pipeline model the bidirectional dual terminal configuration is used for the emergency valve that act as subnetwork controllers for your isolation tier. There is no directionality on those devices or their terminals because gas can flow freely through the valve in either direction.

[MohamedIsmael]

thank you