The HCC-62 is a stand-alone unit that will convert Serial Digital Interface (SDI) to High Definition Multimedia Interface (HDMI). It will also simultaneously convert HDMI to SDI. This is the primary purpose of the device however there are three other modes of operation. The LED near the power plug will indicate the operating mode and indicate that the unit has power. The unit has buttons for changing the mode of operation up or down. The first two channels of audio are passed through.