The night nIO D / nIO 1S is a low voltage device that interfaces and provides network addressability for a variety of non-night devices. The nIO D is an output device that controls the dimming level of 0 to 10 VDC dimming ballasts / LED drivers. The nIO 1S is an input device that detects a toggle or momentary dry contact closure switch. Additionally, the nIO 1S's can read a 0 to 10 VDC dimming control signal from non-night dimming photocells and wall dimmers. NIO D / nIO 1S devices wire into any zone of night devices (sensors, power packs, WallPods) using CAT-5e cabling. Class 2 interface wires are present with each unit an input or an output wire and a common/ground. The nIO D / nIO 1S comes standard in an inline wired housing or with a 1/2 in chase nipple for mounting to a luminaire or junction box knockout (KO option).