Sony RMBR300 Remote Control Unit for the BRC-300/H700/Z700/Z330/H900 Remote Camera Control Unit for BRC-H900/H700/Z700/Z330/300 and EVI-HD Camera Series Easy-to-use and ergonomic joystick design The VISCA RS-232C / RS-422 command for communication A Tally Lamp Input / Contact Putout Terminal allows connection of a Video Switcher