How do I convert the FX-10 NAC circuits from Class B to Class A?

To convert FX-10 NAC circuits to Class A, you must pair the existing Class B circuits. The FX-10 supports up to 2 Class A NACs by converting pairs of its 4 standard Class B NACs (Page 1) [1].

1. Wire the notification appliances in a continuous loop from the primary NAC terminals back to the paired NAC terminals. 2. Access the front panel programming menu. 3. Select the NAC circuit and change the Class setting from Class B to Class A (Page 81) [1].

Note that converting to Class A reduces the total number of available NAC circuits (Page 1) [1].