TheAlarmTech.com

Hi All,

In audio network EST3 i get this message "Demux audio input Error".

i have tried by change Zone cards,cpu,RS-485 card on both the Est-3 panel.

but still the problem exist.

pls help to trouble shoot.

can i know, how many control panels connected in that network , and can you send me that full trouble message description which is you can get from the concern fire panel.