Terminal jumpers can be internal, as defined by the block properties of a multi-level terminal, or an external add-on jumper.
You can define internal jumpers for a multi-level terminal to indicate that certain levels are jumpered together. Define the internal jumpers directly in the terminal block properties. Or, associate an internal jumper definition with a specific catalog in the Terminal Properties Lookup tables. When the catalog is assigned to a terminal, the internal jumpers are assigned to each terminal in the association.
External or add-on jumpers can jumper together any two or more terminals. Use the Edit Jumper tool to define an external jumper or, define the jumper from within Terminal Strip Editor. A catalog value can be assigned to an external jumper.