An RS232 to IR converter that allows for full IR control of integrated sources and displays in any 2G/2G+ or 3G Just Add Power HDMI over IP install. Compatible with all Just Add Power transmitters and receivers with RS232 serial ports. Each IR dongle comes supplied with 5V power supply or can be powered via USB port on the transmitters and receivers. When using with 2G devices, an extra component is necessary for use which is shipped with the dongle.