The number of cores for a cable is fetched from the catalogue. If the Spref is already set, the correct number of rows will be shown for each cable, one for each core. In case the cable does not have any Spref, the application will not know how many cores the cable has and will therefore show a question mark in the Core column. It is possible to assign a Spref to a cable in the core connections dialogue by right-clicking on the cable name and selecting Set Catalogue Reference.

This will bring up a Catalogue Search dialogue, which works in the same way as the general Catalogue Search function (Catalogue Search in Chapter Working with Diagrams).

When a cable catalogue item has been selected, the Cable Core Connection Definition dialogue will know how many cores the cable has got and will then show the corresponding number of rows.