 In that effort, “common” appears to have meant that a single family of mechanism designs accomplished both berthing and docking (inheriting the divergent requirements for both) and that any member of the family could join with any other member.“Active” and “passive” referred to whether mechanisms were provided for attenuation of residual kinetic energy after docking.Motor-deployed capture latches of two different designs (fast- and slow-acting, having short- and long-reach, respectively) were mounted on the outboard radius.