Video intercom access control systems on protected objects

摘要

The system allows you to extend the functionality and reliability of the protection. The system comprises a calling panel (VI), a video camera (VC) installed outside the protected premises, the subscriber unit (SU) adapted videoperegovornym connected via communication lines. Administered switching device and at least one additional VP, VC and more additional UE. VP, additional VP, VC and VC additional associated with AC and an additional AU through the switching device, provides a view of the monitor image from the AU said the VC, conducting bilateral negotiations and the transfer of the access control commands. 9 AM f-ly, 6 traits.