XANTECH 789-44PS/RP 1-Zone Connecting Block with Power Supply (Discontinued by Manufacturer) Connects 4 Emitter Ports & Power Supply To All Xantech Ir Receivers & Keypads 4 Parallel Emitter Ports With 470w Resistors Drive 4 Single Or 4 Dual Emitters Quick-connect Stereo Mini Jack For Xantech Ir Receivers That Use A Stereo Mini Plug Status Terminal For Connection Of Xantech Ir Receivers & Keypads With Status Indicator Leds 2.1mm Coaxial Power Jack Connects 4 emitter ports and power supply to all Xantech IR receivers and keypads 5 parallel emitter ports with 470W resistors drive 4 single or 4 dual emitters quick-connect stereo mini jack for Xantech infrared receivers that use a stereo mini plug Status terminal for connection of Xantech infrared receivers and keypads with status indicator LEDs 2.1-millimeter coaxial power jack Includes Xantech 781RG power supply