How to listen to an IFB destination with full-composite Source and Interrupt on a Matrix Panel
So it all depends on the EHX version is running
1. If running EHX with Virtual-IFB (EHX V8.5 and higher) .. it’s very simple
Make a listen to the V-IFB (not the actual port source)
Right-click on the IFB listen button
2. If running old EHX with older IFB mode, then one needs to use PL turn around on the GLOBAL IFB port and listen to the Global IFB port.