CHECKING CIRCUIT OF ALARM

摘要

An alarm cognition checking circuit simply checks a transmission line state of an alarm signal and an alarm cognition board state. The alarm cognition checking circuit includes: a divider(1) for generating a clock signal of a desired frequency by dividing an input clock signal(IN); a shift clock signal output part(2) for outputting an output signal of the divider(1) in parallel; an alarm generation controller(3) for generating an alarm generation control signal as an output signal of the divider(1); an alarm generation control signal parallel output part(4) for outputting an output signal of the alarm generation controller(3) in parallel; and an alarm signal output part(5) which shifts an alarm generation control signal from the alarm generation control signal parallel output part(4) according to an output signal of the shift clock signal output part(2), and generates alarm signals (Q1-Q128).