XANTECH CB12 1-Zone Connecting Block (Discontinued by Manufacturer) Connects one emitter port and power supply to Xantech IR Receivers that use a stereo mini plug. Also includes a three-terminal block for wired connection of Xantech IR Receivers and Smart Pads. 3.5 mm stereo mini jack for quick-connect IR receivers. 3.5 mm mono mini jack for one single or one dual emitter. 2.1 mm coaxial power jack. Uses either the 781RG or 782-00 power supply. Connects 1 emitter port and power supply to Xantech infrared receivers that use a stereo mini plug Includes a 3-terminal block for wired connection of Xantech infrared receivers and smart pad units 3.5-millimeter stereo mini jack for quick-connect infrared receivers 3.5-millimeter mono mini jack for 1 single or 1 dual emitter 2.1-millimeter coaxial power jack uses either the Xantech 781RG or 78200 power supply