The present invention provides an apparatus and method for preserving a frame sequence and distributing traffic in a multi-channel link, which efficiently distributes frame traffic while preserving the transmission sequence of frames in a link composed of multiple channels, and to a multi-channel transmitter using the apparatus and method. In standard operation mode, after user input of desired growth parameters, a command file is started via interaction through the interface. The ROM is programmed by writing digital data \u201c1\u201d or \u201c0\u201d in each of the memory transistors according to whether a dielectric breakdown of the insulation layer is caused by a predetermined programming voltage applied from the bit line. Disposed within the mass damper is a plurality of steel shots capable of movement in a relatively delayed phase with respect to the mass damper. By arranging the diffuser and the radiator so that a normal line passing through the center of the width of the diffuser is different from the predetermined direction at least in the vicinity of the light source when viewed in the longitudinal direction of the light guide, the illuminance distribution of the longitudinal direction of the light guide is uniformed.