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One trend in accelerator instrumentation is the digitization of signals further upstream in the signal processing chain. In some systems, this leads to distributed data sources that must be interconnected in a standard way. IEEE 1394 Serial Bus provides a possible interconnection standard for these systems. With Serial Bus, data acquisition is implemented via memory to memory transfers within a distributed 64 bit address space. Because this functionality is provided in silicon, software overhead is significantly reduced. This technology is under evaluation for use in the RHIC position monitor system. Using this example system, the suitability of IEEE 1394 for the accelerator environment will be described. Also, the results from recent tests will be presented.

Brookhaven Science Associates, LLC for the United States Department of Energy under Contract No. DE-AC02-98CHlO886 This is a preprint of a paper intended for publication in a journal or proceedings. Since changes may be made before publication, this preprint is made available with the understanding that it will not be cited or reproduced without the permission of the author.

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