Global Caché's GCIRL IR Learner is a must-have tool for every dealer, installer, and home automation enthusiast. The compact GCIRL is used with a PC to learn the full spectrum, 30KHz to 500KHz, of IR codes that control infrared driven equipment. When used in conjunction with the free GCIRL Utility the learned code is displayed, converted into other formats, and automatically copied into the Windows clipboard, which can then be pasted into any Windows application to facilitate quick database and/or spreadsheet creation and updating. The stored codes can be used to control and automate any device that accepts infrared control signals, from any networked computer, and over the Internet. The GCIRL power is supplied by the RTS line of the serial port and requires no external power supply.