METHOD FOR OPERATING LONG-RANGE OPTICAL LINE SUPERVISORY SYSTEM

摘要

PURPOSE: A method for operating a long-range optical line supervisory system is provided to increase the reliability of a system by simultaneously measuring and monitoring a multi-core insulated cable and to maintain a lasting and effective maintenance system by monitoring physical, environmental factors for lines. CONSTITUTION: Power meter cards(130) to measure the loss of an optical line(110) are connected respectively to slots(120) connected to the optical line(110) and connecting the optical line(110) and a supervisory unit(140). The supervisory unit(140) comprises a CPU card(142) that stores and analyzes the data measured at the Power meter cards(130). The CPU card(142) transmits line information and abnormal information to a computer(150) connected through an RS-232C communication port. The CPU card(142), connected with an OTDR(Optical Time Domain Reflectometer)(160), exactly catches a location in which abnormality is generated. The CPU card(142), as a master CPU card, is connected to a slave CPU card(144) so that transfer can be achieved in case that either is in an abnormal state.