The article deals with the modernization of the automated banking system management system. The scientific and technical fundamentals of designing and creating an integrated, multi-service, information and telecommunication system of a bank are described. The presented automated LAN management system of the banking system based on the active equipment of Cisco Systems provides the modular principle of building networks and their resistance to failures due to the fact that the performance of individual network components is independent of others.The solution allows to integrate devices into the system that provide the implementation of various technologies without changing the system architecture.The hierarchical and modular nature of this model allows to specialize individual LAN components independently of others.

Keywords: bank control system, workstation, information security, virtual local area network, end node, terminal device, security system, network traffic, switch, distribution level