Littelfuse CIO-DN-P Communications ModuleLittelfuse CIO DN P Communications Module Product Description The CIO DN P module is a convenient, cost effective DeviceNet interface device capable of providing discrete control and monitoring of motor starters, drives and other devices over a DeviceNet network. The CIO DN P module provides four solid state 24VDC inputs and two AC DC rated relay outputs. The CIO 120 DN P module provides four solid state 120VAC inputs and two AC DC related relay