RC 2946 is a wall-mounted remote control for the ZM 2124 / ZM 2100 main unit that allows to select the AUX inputs, to enable the music bus in each zone and control the volume level. On its front panel, there are a MIC input (XLR socket) and a LINE input (1/8” jack) to connect a local music source. The remote control can be connected to the main unit through a CAT5 FTP cable having two RJ 45 plugs. Fix its included box to the wall with 4 suitable plugs (not included) and then the RC 2946 remote control (after connecting it) to the box though the included 4 screws.