A system and method for simplified provisioning is provided. Openings are formed in the electrodes such that pairs of openings face each other through the dielectric plate. By this, the common mode noise suppression circuit performs broadband suppression with related to the common mode noise within a frequency scope of several GHz without affecting the differential mode signals and improves manufacturing process miniaturization to decrease cost. Cavities are provided at the ends of auxiliary waveguides connected to the directional couplers, and monitor light is guideded into these cavities. The electrodeposition coating composition comprises an ester compound selected from the group consisting of:.