The modular hardware is described that provides the recording and preliminary digital processing of coordinate data from multiwire proportional chambers operating with a large multiplicity of particles in highintensity beams (up to 10{sup}6 particle/s per wire) of the 70-GeV accelerator from the Institute of High-Energy Physics. The digital section of the hardware (64-channel recording modules and controllers) is mounted in electronics racks located far from on-chamber preamplifiers-shapers of signals arriving from the multiwire proportional chamber. To match with the trigger signal, the hardware uses two signal delay stages (fixed cable and tunable cyclic-memory-based digital stages). The hardware searches for the useful data, processes it by the binary encoding to compress data arrays and optimize data formats before inputting into a computer.
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