Kramer Electronics RC-8IR RC-8 IR is an 8-button room controller for multimedia rooms. It will control audio components, video components and other room facilities such as lights and screens. Configurable Back-Lit Buttons – Functions and/or macros are programmed into the 8 buttons which can be labeled for easy operation. Command Programming - IR learning or Ethernet. Control Options- 1 Ethernet, 2 RS-232, 4 (2x2) IR Emitters, 1 RS-485 and 2 Relays. Macro Mode - up 15 commands with a single button (maximum 120 commands). Wall Plate Size.