A telephone line status self-checking device based on ARM

Abstract

The present invention requests protection for a telephone line status self-checking device based on ARM, which includes a main control unit, an optoelectronic conversion unit, a digital-to-analog conversion unit, a power supply unit and an alarm indication unit; the optoelectronic conversion unit and the digital-to-analog conversion unit are respectively connected to the alarm indication unit; the optoelectronic conversion unit includes a PDH optical port module and an E1 electrical port module; the digital-to-analog conversion unit includes an FXS module, an asynchronous data module and an Ethernet module; the alarm indication unit includes a panel alarm indication module and a detection module, and the detection module is connected to the panel alarm indication module. The telephone line status self-checking device based on ARM of the present invention can convert digital-to-analog signals and optoelectronic signals into each other for long-distance transmission, thereby reducing signal loss and energy loss. Through the alarm indication unit, it can be clearly seen whether the equipment has a fault, which is convenient for maintenance personnel to repair the equipment.

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