A distribution board is provided in a dwelling unit to distribute the power supplied from an electric power provider to branch wires to supply the power to devices (an air conditioner, a dish washer, a monitor device and so forth) connected to the branch wires. The distribution board includes a distribution board body to house a plurality of types of internal instruments including a main switch to which the main wire from the electric power provider is connected and branch switches to which the branch wires are connected. The distribution board body houses a communication unit for communicating with a power meter having a communication function and a control unit for performing control relating to supplying power to the devices on the basis of the communication with the power meter.