The Model CB12 provides a low cost means of connecting Xantech "Quick Connect" IR Receivers and standard 3-wire IR Receivers to one single or one dual emitter and a power supply in an infrared repeater system. Features and Specifications: Inputs: 1 - "IR RCVR" 3.5mm stereo mini jack. Accepts any Xantech IR Receiver equipped with a 3.5mm stereo mini plug, such as the 291 series or 490-30. 1 - Three terminal "VGS" block for wired connection of Xantech IR Receivers and SmartPad keypads. Output: 1 - Emitter "OUT" port (3.5mm mono mini jack). Model 282, 283, 284 & 286 Xantech series Mini Emitters may be used. 2.1mm coaxial power jack for Xantech 781RG or 782-00 Power Supplies. Dimensions: 2-1/8" x 1-1/4" x 3/4".