The CRC2301 Contact Input Tiny is used to interface the NexLight 2-Wire Low Voltage Lighting Control System with third-party devices that provide dry contact closures (sensors and switches). It is able to receive a momentary or maintained contact for controlling Individual, Group, or Pattern addresses on the 2-Wire System. Each device can be programmed with a disable address to enable/disable the device. The small dimensions allow for distribution near the sensors or switches throughout the building.