Digital Input 16 Digital Output 16N(NPN) Digital 8 In / 8 Out(NPN,PNP) Digital Output 6R(RELAY) Digital Output 16P(PNP) Digital Output 8S(SSR) Digital Output 4S(SSR) Analog Input 8 Analog Output(4, 8) Digital Input 16 Base Module Extension Module Item Digital Input Module Model HDI-B16, HDI-E16 Input Points 16 Points Input Impedance 4.8 �� Input Isolation Method Max Input Current 5mA@ 24VDC Photo Coupler Status Display Module, Network, Input Status LED * This product of HANMI Semiconductor is protected by the property right of industry.