Cisco Network Convergence System 4200 Series

Optimize with a Packet-Optical Framework

Improve your network’s flexibility and cut costs with the Cisco Network Convergence System 4200 Series. With best-in-class Circuit Emulation technology, the NCS 4200 Series offers any-to-any connectivity, along with significant savings over traditional TDM transport architectures. Network operators can use the NCS 4200 Series to evolve their network for the future while supporting the delivery of legacy TDM services, in addition to OTN and Ethernet services.


Choose the right NCS 4200 model for you.

Features and Benefits

Evolve your network

Deliver outstanding scale with high-density Circuit Emulation technology, Ethernet and Optical Transport Network (OTN) capabilities, over a packet-based network (MPLS/Flexible Label Switch Path (FlexLSP)).

Circuit Emulation

Migrate your native TDM traffic over to a packet network infrastructure with the NCS 4200 Series’ circuit emulation technology, while both supporting existing TDM service requirements and eliminating the need for your legacy PDH and SONET/SDH equipment.

Cost and power efficiency

Reduce the space and power required by existing solutions by up to 90%, by seamlessly migrating older networks and services that rely on TDM Digital Cross Connect Systems (DCS) and Add-drop Multiplexers (ADMs) to an IP network.

Multilayer Management

Designed with software-defined networking (SDN), network functions virtualization (NFV), and multilayer management in mind, the Cisco Evolved Programmable Network Manager (EPN-M) provides simplified, converged, end-to-end lifecycle management across an optical and Carrier Ethernet infrastructure.


Solve problems faster, improve operational efficiency, and reduce your risk of downtime.


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