Binding posts are chassis mounted connectors which allow for the connection of bare wires, spade lugs, banana connectors, or pin connectors. They are commonly used on electronic test equipment and contains a central threaded metal rod and a cap that screws down on that rod. The cap is usually insulated with plastic and colour coded:• Red – active or positive terminal• Black – inactive or negative terminal• Green – earth (ground) terminalBinding posts allow the connection of various connections:• Banana plugs• Pin connectors• Bare wire• A lug terminal• An alligator clipApplications include:• Aerospace• Defence• Military• Signal processing• Audio• Consumer Electronics• Industrial