Existing interconnects between RF and processing hardware have been tightly integrated at a system bus level or have incorporated proprietary network hardware, usually tied to the particular data being transported. This paper describes a system taking advantage of commodity Gigabit Ethernet to provide a flexible sample interconnect. Using off the shelf hardware provides flexibility at low cost allowing a choice of network topologies and equipment vendors. The soft real time solution deals well with Ethernet jitter and unreliability, which has traditionally prevented its use in real time systems. The solution is general in nature, allowing for a variety of data content in many applications, including baseband interconnects, distributed antennas and signal processing clusters.
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