The Nokia 1850 Transport Service Switch 5R (TSS-5R) is a fully redundant aggregation switch with compact access for packet transport networks (PTNs). Ideally suited for mobile backhaul and business Ethernet applications, it can be deployed at base station sites — or act as a compact hub for traffic aggregation by collecting Ethernet and leased-line traffic and feeding it into higher capacity metro PTN or optical platforms. Equipment redundancy and multiple traffic protection options make this a robust platform for the transport and delivery of high-availability services.