Amplified version of the 790-00 multiple emitter connecting block; Emitter ports with jumpers permit high or low power; High-speed opto-isolator for improved operation; Quick-connect stereo mini jack for Xantech(R) IR receivers that use a stereo mini plug; Parallel emitter ports drive 10 single or 10 dual emitters; Up to nine 790-00 units can be connected to the 791-44 if more than 10 emitter ports are needed ; Status terminal for connection of Xantech(R) IR receivers & keypads that have status indicator LEDs; Red LED input signal test-IR ; Uses either the 781RG or 782-00 Power Supply; Dim: 6"H x "W x .94"DLength: "Width: "Height: "