AC200L 48 Volt output unavailable

Since the D40 step down converter for the D40 will not be available until April at the earliest, could you (Bluetti) at least describe the intended function and operation of the 48 volt output? Specifically can you let us know how to output the 48 volts through the 3 pin port without having a D40 attached. If we could build our own cable and then be able to output the 48 volts we could connect to a 3rd party step down converter and utilize the function that many have purchased the AC200L for.