The S4 Open: OPC-N2 Router from the S4 Group creates flexibility and cost savings in Building Automation systems. The OPC-N2 Router from the S4 group is the gateway to third party product integration into the Metasys® N2 environment, enables seamless OPC integration with N2 networks, Ethernet compatibility, and introduces cost saving in virtually every upgrade, maintenance, or replacement on the N2 bus.