To Define Net Pairs
1. Click
Analysis >
Electrical Clearance. The
Clearance and Creepage dialog box opens.
2. Click Setup > Net Pairs. The Net Pairs dialog box opens and displays a table with names of all the nets in the first row and first column.
3. Select a Pairing method to define the net pairs. The following pairing methods are available:
◦ Select cells to pair nets—Click a check box in any cell. The net in the row is paired with the net in the column. This is the default pairing method.
◦ Select nets to pair them among themselves—Select more than one row. The selected nets are paired among themselves.
◦ Select nets to pair them with unselected nets—Select one or more rows. The selected nets are paired with the nets that are not selected.
◦ Pair all nets—Do not select any nets in the table. All nets are paired among themselves by default.
|  You cannot pair a net with itself or an empty net with any other net. |
4. After you have defined the net pairs for the analysis, click OK.