The Global Caché GC-CGX Converter translates GC-100 Network Adapter IR outputs to Xantech, Niles and SpeakerCraft IR inputs. With the GC-CGX, GC100 IR commands can be transmitted over third party IR distribution systems. Simply plug the GC-CGX into the desired GC-100 IR output and plug the other end into the IR input (receiver) of an IR distribution box, such as the Xantech 789-44 Connecting Block. The GC-CGX is optically isolated to avoid noise and ground loop issues found when systems are powered by multiple sources. When properly connected, the GC-100 IR outputs will operate and function as if the commands were sent by the third party device. When used with a GC-100, the GC-CGX requires no power supply and supports an IR frequency range from 30 KHz to 500 KHz; third party devices typically do not exceed 120 KHz. Do NOT use extension cables between the GC-100 and GC-CGX; this would cause high-frequency degradation. Also, when using an extension cable between the GC-CGX and the distribution box, it should not exceed 12 feet for frequencies above 100 KHz.