Part No. 96134473 CO1, Series B 10 to 30VDC input voltage range 16 inputs per module Backplane Requirements = 0.13 AMPS @ 5 VCD Compatible with all chassis EXCEPT 1771-A1, 1771-A2, 1771-A4 chassis. Has selectable off-delay filter time of either 1ms or 6 ms. Comes with specifications and installation