FIELD: physics, optics.
SUBSTANCE: invention relates to telecommunications and can be used for rapid detection of faults in signal processing equipment and an optical interface board. The signal processing equipment includes n function modules F1, F2, … Fn, and n fault detecting points T1, T2, … Tn for determining whether there is a fault in said n function modules, where n is a natural number. If the detecting result of said detecting point Ti indicates that there is a fault in the function module Fi, the corresponding detecting points of other function modules directly associated with the function module Fi are detected, and the reason of the fault is determined for all the fault function modules. The present invention divides the equipment or the board into different modules in accordance with functions, each module having a corresponding fault detecting point.
EFFECT: high accuracy of fault detection.
7 cl, 6 dwg
