Digital communication supervisor

Technical scheme of the utility model is to provide a digital communication supervisor, which comprises an operation unit, a signal interface module, a network interface module and a power supply module, wherein the operation unit (1) comprises a central processing module (11), a real-time clock (12) and an LCM keyboard (13), and the central processing module (11) is connected with the real-time clock (12) and the LCM keyboard (13). The digital communication supervisor can accept a wide voltage input scope ranged from 85V to 260V, and can accept AC/DC power source input. When a main work power source is out of power, an auxiliary power source can be switched to be the work power source in a seamless switching manner to supply power for the supervisor, and therefore, reliability and stability of system equipment on-site operation are substantially improved. No hard disk or fan is arranged in the digital communication supervisor, and therefore, system mechanical fault points are reduced. An open source Linux sy