A junction box, also known as a wire box or terminal box, is a closed container used to fix, protect and connect wires and cables. A marshalling panel organizes and routes instrumentation signals between field devices and control systems. A system cabinet houses complete control and distribution systems with active components like PLCs, circuit breakers, and. A PLC connection represents the signal flow starting from the field transmitters, junction box, marshalling cabinet, system cabinet and Human-Machine Interface for the operator graphic display. Here is a diagram of a typical. Modular terminal blocks for Signal marshalling for extremely compact yet clear panel design Increasingly complex requirements for automation processes and increasing demands in terms of monitoring and recording operational data have led to an ever-increasing number of sensors in the field for. When it comes down to it, terminal boxes are really just the simplest version of electrical cabinets.
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