Boolean links
Horizontal and vertical Boolean links can be combined in any way.
Example:

Contacts and coils
Contacts and coils link automatically to existing horizontal or vertical links if no free cells are found between them.
Example:

Crossing Boolean links
If two Boolean links cross each other they are automatically connected. Since Boolean links may not cross each other there is no special label for them.
Example:

Crossing FFB links
If two FFB links cross each other a connection is not made between them. Crossed links are indicated by a "broken" link.
Example:

Crossing FFB links and Boolean links
If FFB links and Boolean links cross each other, a connection is not made between them. Crossed links are indicated by a "broken" link.
Example:
