Four channel video server, which will connect to any ordinary four-way camera / communication protocols : TCP / IP transmission protocol / RJ-45 interface / video switching : automatic Round Robin, adjustable speed Round Robin, bypass and fixed / built-in a parallel I / O interface can be connected external automatic alarm sensor / four separate images, automatic Round Robin, single-picture, picture freeze ,2 4 - 4-fold amplification picture, picture-in-picture, painting paintings optional / support full-duplex voice dialogue;
Having a separate security mechanism, the operation of the camera user-level certification authority;

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