Information Technology

This Cisco 32-Channel Demultiplexer Module operates with the 32-channel WSS in C band ROADM nodes to provide access to channels to be dropped locally. Embedded automatic power control mechanisms enable it to interface with different types of DWDM units without requiring external attenuators. This module is part of the Cisco ONS 15454 MSTP intelligent DWDM architecture engineered to reduce DWDM complexity and speed the deployment of next-generation networking solutions.

The 10-Gbps Full-Band Multirate Transponder Card can transport 10 Gigabit Ethernet WAN physical layer (PHY) and LAN PHY, 10-Gbps Fibre Channel (10G FICON), SONET OC-192, and SDH STM-64 services over a 50-GHz spaced, 50-GHz stabilized, ITU-compliant wavelength. The transponder card is a plug-in module to the Cisco ONS 15454 MSTP, enabling a cost-effective architecture for delivering high-rate 10-Gbps services as well as low-rate services down to 1.5 Mbps. The 10-Gbps Full-Band Tunable Transponder Card architecture contains a single client interface that is mapped to a single line interface, without accessing the Cisco ONS 15454 shelf cross-connect fabric.

Challenge and Solution

The bandwidth carried on core and metropolitan (metro) DWDM networks is growing exponentially, but operators' revenues are not growing as quickly. The Cisco ONS 15454 40 Gbps solution can dramatically lower the cost to carry bandwidth, helping maintain and improve customers' profitability. Internet growth is still exponential, mainly because of demand for next-generation services such as quadruple play (data, voice, video, and mobility), video distribution, Internet Protocol Television (IPTV), and other high-bandwidth services.

This growth in data transmission in DWDM networks that require technology advances to support such large bandwidth. Scaling from 10 to 40 Gbps is the perfect solution for this problem; it quadruples the bandwidth that can be transported over existing fiber networks.

New modulation techniques now support ultra-long-haul (ULH) networks with more than 2000 km of unregenerated optical links. The Cisco ONS 15454 MSTP 4-Port 10Gbps Full-Band Tuneable CP-DQPSK Muxponder Card is designed to satisfy the following requirements.

? 40-Gbps signals must work in fully uncompensated networks up to more than 2000 km.

? 40-Gbps signals must work with very low-quality fiber with very high polarization mode dispersion (PMD) coefficients.

? 40-Gbps technology must work on 50-GHz systems with negligible filtering penalty.

? 40-Gbps units must fit mechanically and thermally with existing installed shelves with no effect on existing units, allowing full back-compatibility and no restriction rules for where the units can be placed.

The Cisco ONS 15454 MSTP 40Gbps Full-Band Tuneable CP-DQPSK Muxponder Card can transport four OC-192/STM-64/10 Gigabit Ethernet (OC-192/STM-64/10GE) LAN/10 Gigabit Ethernet (LAN/10GE) WAN/8-Gbps (WAN/8G) Fibre Channel/10-Gbps (FC/10G) Fibre Channel Optical Transport Unit Level 2 (FC/OTU2) payloads over a G.709 OTU3-based, 50-GHz spaced, 50-GHz stabilized, ITU-compliant wavelength with selectable enhanced forward error correction (EFEC). The muxponder card is a plug-in module to the Cisco ONS 15454 MSTP, providing a high-density, cost-effective solution for 10-Gbps services transport over a platform capable of low-rate services down to 1.5 Mbps. The muxponder card architecture contains four client interfaces that are mapped to a single line interface, without accessing the Cisco ONS 15454 shelf cross-connect fabric.