The AT.10 Smartpath Amplified Connecting Block provides a convenient means of interconnecting SpeakerCraft infrared products in IR repeating systems. It includes a wide bandwidth amplifier for robust operation. It has blaster drive power capability and is reverse voltage protected. Features: Central Terminating Unit for IR System; Amplified Circuit for Driving Standard Emitters or High Powered Blasters; Features EZ-Connect Terminal Block; May Be Cascaded for Additional Emitter Output Jacks; Unique Quad 3.5mm Mini-Phone Type Jack for Connection to IR Receivers; 12V DC Power Input Jack; 5-24V DC Status In Jack' DIP Switches to Change Emitter/Blaster Driver Power; and Network Terminating Circuit, DIP Switchable. Requires Regulated 12V Power Supply.