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Clusters of NIONs can be interconnected in an XDAB ring, allowing up to 512 channels of redundant, low-latency audio to be exchanged. Wiring devices together in this way allows available DSP processing capacity to be shared between the group.
Note: The maximum channel count scales proportionally to the chosen sample rate. At a 48KHz sampling rate, 448 channels of audio can be exchanged.
Each NION has two XDAB ports, marked IN and OUT, which are used to physically wire them together in a ring using shielded CAT-6 cabling. The order of the NIONs in the ring is not important, since it is determined, and adjusted for, when the associated NWare project is deployed. However, NIONs that are specified as members of the same XDAB ring must be physically connected, otherwise each unit will indicate that a fault has occurred.
For information on XDAB performance, see XDAB performance (NION n3, NION n6). For information on using XDAB with VLANs, see Using XDAB clusters with VLANs and CobraNet in the CobraNet Networking Guide.
To connect the NIONs together
We recommend you use a configuration like the one shown below. This will give optimum performance and reliability.
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