S2 Security Corporation of Wellesley, Massachusetts, has introduced the S2 NetBox XL, which addresses large-scale deployments of S2 NetBox systems and S2 Network Nodes, making it possible to scale systems across any geography while providing both local and remote Web-based control. It leverages the network infrastructure to facilitate centralized or distributed control and allows the user to develop and implement corporatewide security policies to handle access control, video, monitoring, and other physical security functions.