...DO NOT lose time copy and pasting cable datasheet.
This program, unlike MS Visio or other generic tools, has specific business funcionalities like:
1.- You can double-click a cable in the diagram and define the wiring of that cable in a pop-up dialog.
2.- Also the parts have properties that define all the connector Jacks / Plugs (J/P) they have (e.g., J1 or P1 would appear at the part).
3.- Rack lay out tool. You can associate each part with its rack view equivalent. For example: you can associate a part that is a Server with a rack part of 4U height to place at the rack
This software produces block diagrams and wiring sheets