Junger Audio D*AP4 FLX / D*AP4 LM Edition - Manual (Page 27)

D*AP4
22
Important note! The AES relay bypass circuit of the AES I/Os may be deactivated inside the
D*AP4. You must open the cover plate from the D*AP4 unit and locate the red jumpers shown in the
schematic below:
AES 1/2 on the main PCB
AES 3/4 on interface slot 0
You must remove the jumpers to de-activate the AES I/O relay power fail circuit.