48, 24 and 8 ChannelModelsDirect Connection to theCIO Family of Digital I/OPlug-in BoardsOn-Board BuffersPowered by 5 VdcMost digital I/O boards can not bedirectly interfaced to real worlddevices. Output voltages are usuallylimited to TTL levels (0/5 Vdc) witha few milliamps of drive current.Inputs …