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1850 Transport Service Switch

The Nokia 1850 Transport Service Switch (TSS) supports any mix of traffic, from all-circuit to all-packet. These network transport switches are perfectly suited for evolving traditional Multi-Service Provisioning Platforms (MSPPs) to Packet Transport Networks (PTNs) as well as for cost-effective greenfield PTN installations.

The 1850 TSS platforms provide converged support for Carrier Ethernet and SDH/SONET, connection-oriented support for packet services, and native and emulated support for TDM services.

With the 1850 TSS, service providers can integrate new equipment into an MSPP SDH/SONET infrastructure to replace older equipment that is at end-of-life/end-of-support. At the same time, providers can support the latest packet networking technologies that enable deployment of advanced services such as LTE and MEF CE2.0.


  • Lowers the risk of CAPEX investments and shortens time-to-revenue for expansion of SDH/SONET
  • Enables scalable delivery of a flexible mix of broadband services
  • Reduces OPEX and simplifies network operations with service-aware QoS and end-to-end management


  • Support for any traffic mix from circuit to packet, leveraging or replacing existing MSPP SDH/SONET networks
  • Platforms spanning metro and regional core with Terabit packet switching capability to pizza box CPE
  • Leading hardware-based MPLS-TP implementation and high-performance OA&M tools
  • Unique PTN platform for native TDM and packet convergence and multiservice aggregation
  • MPLS-TP implemented in hardware, enabling highest scalability for OA&M plus payload traffic protection
  • High scalable Mobile Backhauling (LTE) with Ethernet synchronization capabilities and L3 VPN
  • Simple interface card changes eliminate switch replacements to support more evolutions like 100 GigE
  • Carrier Ethernet/transport MPLS-TP support for transport QoS levels and seamless interworking
  • End-to-end management of PTN and SDH network services by the Nokia 1350 Management Suite