Provided are: a lead frame enabling efficient manufacturing of multiple circuit devices; and a method for manufacturing a circuit device using the same. The system also has a first support device configured to removably receive and support the divider in a first orientation that forms laterally adjacent compartments and a second support device configured to removably receive and support the divider in a second orientation that forms vertically adjacent compartments. In particular, when dedicated private circuits develop faults, a network automatically switches traffic to a dedicated back-up circuit.