10 IDR-4 User Guide
System Processing Overview
The iDR-4 has 6 analogue inputs and 6 analogue outputs. However, it has the onboard processing for
a full 16 input and 16 output channels. An extra 8 physical inputs and/or outputs are available when
the iDR-in and/or iDR-out audio expanders are added. Only one of each may be added. This means
that you can create an 6x6, 14x6, 6x14 or 14x14 system to suit your requirements. The stereo monitor
input and output are part of that count if they have been configured to use inputs and outputs 5 and 6.
iDR-4 and iDR-8 units can be daisy chained together using the 8 channel wide digital expander bus to
create even more flexible systems with additional local inputs and outputs and a maximum 16x16
matrix.
The system architecture illustrating the unexpanded iDR-4 is shown below. Note that physical inputs
and outputs 5 and 6 are normally routed through the processing channels to provide a 6x6 system. If
you wish to use the audio monitor function then these can be reconfigured using iDR System Manager
software to provide a 6x4 system with stereo monitor out, or a 4x4 system with ripple through stereo
monitor. Diagrams showing expanded and linked iDR systems as well as various monitor options are
shown later in this user guide.
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