> What does ARW mean?

ARW stands for Automatic Reset Warning, it appears when the panel has been powered up.

> Why do my 2-wire sounders not work?

Check the polarity of the sounders, they should be positive to positive and negative to negative. Also Dil Switch 1 on the 2 way switch (small panels) or switch 1 on the 6 way Dil switch (large panels) is in the correct position.

> How do I link two or three concept panels together?

Please download the documents below for information on how to link your concept panels together.