A control scheme is disclosed for controlling establishment of a standby channel route for an active channel route in a GMPLS network made up of plural transmission apparatuses. In another embodiment, a system includes a converter to transfer power between a power source and a load having fluctuating power demand, and a controller to provide power control, where the controller may selectively disable the power control. A chassis venting passageway is defined between the chassis vent structure and the first wall of the chassis wall base member. Each positive electrode busbar 1 and negative electrode busbar 6 is connected to the total output part of battery circuit, the total output part 1a and 6a of inverter circuit and other output parts, the other output parts are provided with positive terminals 2a and 3a and negative terminals 8a and 9a.