TERMINAL ADAPTER

摘要

PROBLEM TO BE SOLVED: To prolong the lighting time of LED regardless of communication data quantity contained in one frame of transmission/reception data and to improve the visibility of the lighting display of a terminal adapter. SOLUTION: A terminal adapter used for data communication is formed of CPU 2, a flip flop 3 and LED 4. The flip flop 3 lights LED 4 until the termination of a frame from time when communication data contained in transmission/reception data of one frame is detected at first based on a frame synchronizing signal and transmission/reception data inputted through CPU 2. The driving signal of a high level is outputted to LED 4 and the lighting time of LED 4 is prolonged.