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Honeywell TDC 3000 TDIA12 UCN-series digital input module, order code 51304439-175.
Honeywell TDC3000/Experion series digital input IOTA board, part number 51306969-175.
Honeywell TDC3000/Experion series digital input IOTA board, part number 51306731-175.
Honeywell TDC3000/Experion series digital input module, board part number 51304441-100.