Couplers & I/O modules: Item no. 750-4284-channel digital input; 42 VAC/VDC; 20 ms1 of 4Color: Item no. 750-428 4-channel digital input; 42 VAC/VDC; 20 msPlease wait ...Add to shopping cartGenerate DatasheetDownloads as zipCompareAdd to WatchlistFind distributorsConfigureItem no. 750-428 4-channel digital input; 42 VAC/VDC; 20 msPlease wait ...Add to shopping cartGenerate DatasheetDownloads as zipCompareAdd to WatchlistFind distributorsConfigure