Backup extension PC2003 PCA2014-A1
The PCA2014-A1 plug-in module for 'Digital audio matrix (4/4/16)' PC2003-A1 is to connect a backup amplifier and still use all 4 amplifier channels. It is for sites that only have one PC2003-A1. The PCA2014-A1 switches the correct audio signal to the backup amplifier in case of an amplifier fault of the 4 regular amplifiers.
The module is controlled by 2 logic control outputs of the PC2003-A1.