An interface device (101) includes first and second connectors (111, 112) adapted to be joined together in an operating position. One or more first optical data conduits (211) extend through the first connector (111), with each first optical data conduit (211) terminating at a respective first optical conduit end which is operatively aligned with a respective first optical lens (219). One or more second optical data conduits (212) extend through the second connector (112), with each second optical data conduit (212) terminating at a respective second optical conduit end which is operatively aligned with a respective second optical lens (220). Each respective second optical data conduit (212) and respective second optical lens (220) are aligned for optical coupling across a coupling region with one of the first optical conduits (211) and respective first optical lens (219) when the first connector (111) and second connector (112) are joined in the operating position. The interface also includes a wireless or contact-type electrical power transfer arrangement (227, 228).
