The VCN540-64 supports 64-channel network video access, and provides a wide assortment of services for customers, such as live video surveillance, video retrieval and playback, Pan-Tilt-Zoom (PTZ) controls, alarm detection and linkage, voice intercom, and electronic map. The VCN is widely applied in Safe Cities, small- and medium-sized campuses, and site surveillance scenarios, including substations, base stations, and banking outlets. The VCN features easy maintenance, management, and deployment.