INRAD DM-F detachable coiled cable for DMS-1 base.
2 parts to this cable: 4 pin XLR female to 8 pin Yaesu / Ten-Tec / FlexRadio.
2nd adapter unit converts 8 pin to 3 pin TRS and RCA PTT as used for Flex Radio 6400 and 6600. Can be used with either a rear panel connector or the 8 pin Yaesu configuration used on earlier Flex products.