That picture is pretty self-explanatory. There is enable signal for which you need to apply another source of +12v. I assume it references the chassis for the negative, but it would be good to see the pinout for that entire connector to confirm.
It is kind weird to design a DC-DC that will require the same votlage to operate as the one it outputs! But that's the Chinese engineering for you.
It is kind weird to design a DC-DC that will require the same votlage to operate as the one it outputs! But that's the Chinese engineering for you.