No connect symbols

The Design Rules Check tool checks for unconnected pins. If you intentionally leave a pin unconnected in a schematic page, it needs a no connect symbol. The Design Rules Check tool ignores unconnected pins with no connect symbols.
If a pin with a no connect symbol is connected to a net, the no connect symbol has no effect on the pin and becomes invisible. If the pin is later disconnected from the net, the no connect symbol becomes visible again.

To place a no connect symbol

1. Press Shift, and then X keys.
2. Position the mouse pointer over the pin, and click. The end of the pin changes from a square (unconnected) to an X (not connected).
   OR
3. From the Place menu, choose No Connect.
4. Position the mouse pointer over the pin, and click. The end of the pin changes from a square (unconnected) to an X (not connected).
   OR
5. Select the pin.
6. From the Edit menu, choose Properties. The property editor appears.
7. Change the filter to <All>.
8. Select the Is No Connect property.
9. Click Apply, and close the property editor.
10. Click the left mouse button in any open space on the schematic page. The end of the pin changes from a square (unconnected) to an X (not connected).

No connects cannot be deleted with the Delete command.

To remove a no connect symbol

1. From the Place menu, choose No Connect.
2. Position the mouse pointer over the pin, and click. The end of the pin changes from an X (not connected) to a square (unconnected).
   OR
3. Select the pin.
4. From the Edit menu, choose Properties. The property editor appears.
5. Change the filter to <All>.
6. Clear the Is No Connect property.
7. Click Apply, and close the property editor.
8. Click in any open space on the schematic page. The end of the pin changes from a square (unconnected) to an X (not connected).