This Distributed PoE monitoring system network diagram template is designed for scenarios such as large-scale security monitoring system design, multi-region monitoring networking solutions, video surveillance system deployment planning, and security engineering construction documents, serving as a professional architecture tool in the field of security engineering. Adopting a three-tier architecture of front-end collection, transmission, and control center, the template clearly presents the connection relationships between various monitoring cameras, POE switches, optical fiber transmission equipment, and control center devices, intuitively showing the transmission paths of video signals, audio signals, and alarm signals, adapted to the networking requirements of multi-region security monitoring systems such as large parks and factories. Security engineers, weak current system integrators, project managers, and solution designers can use EdrawMax to quickly adjust device layouts, modify connection relationships, and replace device modules to adapt to various scenarios such as security monitoring system architecture design, multi-region monitoring networking planning, security engineering document production, and project proposal presentations. The modular three-tier design makes the system architecture logic, signal flows, and device interconnection relationships clear at a glance, providing clear and intuitive architectural references for the deployment, operation, maintenance, and expansion of security monitoring systems.