SYSTEM TESTING ACCESS AND EMERGENCY ALARM Russian patent published in 2000 - IPC

FIELD: digital communication systems, specifically, local data transmission networks. SUBSTANCE: invention can be used for organization of zones of access with identification of personnel entering protected object, effective control over unauthorized penetration into its component parts, namely, territory, buildings and rooms. Technical objective of invention consists in increase of authenticity of control over unauthorized penetration into protected object by way of enhanced noise immunity of system and expansions of functional capabilities by formation of output signals for control over external devices. To solve these problems system includes driving and driven controllers, control device, communication line and quick-discharge devices. EFFECT: increased authenticity of control over unauthorized penetration into protected object. 3 dwg