Gould Electronics Communication Board 501-03854-01 m00419
Gould Electronics Communication Board 501-03854-01 m00419
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Condition:
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Stock #:
Used in Gould/SEL and Encore real-time minicomputer systems, the Communication Board with part number 501-03854-01 and assembly reference 502-03063-01 is a large-format, through-hole populated PCB designed for serial and digital I/O communication functions. This listing includes two matching boards. Silkscreen labeling on both boards identifies them as "COMMUNICATION BD" with revision and board test reference markings. The boards feature gold-edge card connectors on two sides, consistent with SELbus backplane integration used in Encore 32-series systems such as the 32/77 and 32/87. Component population includes HP 6N139 optocouplers, AM2841PC line receivers, DM74LS244N and DM74LS193N logic ICs, 80C98, DM74LS161AN counters, and F3341ADC devices, among others. Crystal oscillator circuitry is present at 4.912 MHz. Serial numbers 020700 and 129800 are visible on the two boards. This product line was originally manufactured by Systems Engineering Laboratories and later produced under the Gould Electronics brand. Legacy support for SEL/Gould/Encore 32-series systems continues to be provided by specialized third-party service organizations for applications in power plant simulation, flight simulation, and oil exploration sectors.
Stock # 0226-419
