Is there a standardized female DC jack designed to provide power, much like AC female wall outlets? Typically devices that require a DC power input are powered by individual external power supplies (like wall-warts) with hardwired cables that can plug into the load device. I'd like to build a DC bus that is powered by one large power supply and offers multiple female DC jacks so each device requires only a cable (ie. a DC analog to the C13 to NEMA 5 cables used to power many AC devices) and not its own external power supply.
Is there a connector designed for this? Of course a female barrel jack would work, but that seems like a very bad idea because: 1.) the live center pin would be exposed and 2.) it breaks the standard convention of female barrel jacks as inputs and invites someone to connect a second power supply to the jack.