Glensound GDC 6432/dCCU/AIO2 - Analogue Audio Input/Output BoardThe dCCU is an AES system as standard. There are 8 AES inputs and outputs (16 channels in and 16 channels out). Each pair of AES I O can be replaced by a stereo analogue pair of I O. Features: Adds 2 x analogue audio input output channels Removes 1 x AES input output Up to 8 x AIO2 can be added This gives 16 analogue channels and removes all AES Standard system is: 8 AES inputs and 8 AES outputs. Add 1 x AIO2 card 7 x AES inputs and outputs 2 x