This AJA HA5 converter transforms HDMI video and audio to SD/HD - SDI. Note that it doesn't come with a power supply.

To use this AJA HA5 converter, first connect your HDMI source to the HDMI input on the converter. Then, connect the SD/HD - SDI output of the converter to your SDI device. Since it doesn't have a power supply, you'll need to provide your own suitable power source. When handling the converter, be gentle to avoid any physical damage. For maintenance, keep it in a dry and clean place. If you notice any issues, check all the connections first. If problems persist, it's best to seek professional help.