abstract boards circuit-boards color colored colors colour coloured colours communication components computer connected connecting connections decorated decorative devices distinctive electrical electricity electronic equipment fusible-metal-alloy gadgetry inside interlinked internal linked links metal miniature no-longer-in-use outdated part parts patterns permanently-bonded plastic plastics printed-circuits solder solidify surface surfaces unwanted useless 3D dark light people Rendered connection copper old rust strong tubes wood business center point simple blue close up detail eyelet link oese cable connector PC plug tv video chain Chain graphic communications connect contact graphic joint usb video.USB adjustable aerobridge air jetty airbridge aircraft door airport angle board boarding bridge cab disconnect disconnected disembark disembarking enclosed extend extendable exterior gate gate attendant gateway height high interior jet bridge jetway loading bridge movable movable connector passenger boarding bridge passenger walkway passengers portal retractable retractable tunnel retracted retracting safety security slope sloping terminal walkway