OTS 4400 PSBT Regenerator
Technical Specifications
The OTS-4400 line card offers the following capabilities:
- Transparent regeneration of OC-768/STM-256 or quad 10Gbps service interfaces
- Supports channelized or concatenated framing
- Full C or L band tunable laser and broadband receiver for flexible wavelength provisioning, minimized sparing costs and wavelength translation capabilities
- Enhanced Forward Error Correction with 8.5dB net equivalent coding gain for optimized reach up to 1,000km
- Spectrally efficient 22GHz FWHM bandwidth for operation at 50GHz channel spacing and through multiple (>10) cascaded [R]OADMs
- -19 to 0dBm transmit output power and -18 to 0dBm receive input power range for easy interoperability with existing DWDM systems
- Common CD and PMD link engineering rules as 10Gbps when deployed in conjunction with the OTS-4520 TDCM and OTS-4540 PMDCM
Applications
The OTS-4400 regenerator enables cost-effective 3R OEO regeneration capability of OC-768/STM-256 or quad 10Gbps client interfaces for metro, regional and long-haul networks. It can be deployed in retrofit applications into existing 10Gbps DWDM networks, or to maximize capacity for greenfield deployments. For both applications, the use of spectrally efficient Phase-Shaped Binary Transmission (PSBT) modulation format enables operation on the 50GHz ITU grid and operation over multiple cascaded [R]OADMs with negligible penalty.
Operation at 50GHz channel spacing facilitates simplified 10Gbps and 40Gbps multi-haul networking. No special banding structure or alternating 10Gbps and 40Gbps channel plan is required to support mixed 10Gbps and 40Gbps DWDM networking. 10Gbps or 40Gbps wavelengths are completely interchangeable at any point in the network.
Optical Networking Flexibility
A single "universal" OTS-4400 card type (fully tunable laser and broadband receiver per C or L band) supports regeneration of either OC-768/STM-256 or quad 10Gbps service interfaces. This minimizes sparing inventory, is forecast tolerant and maximizes 40Gbps service provisioning velocity. As traffic demands vary from network section to section and demand growth is difficult to predict, wavelength blocking can become a problem as DWDM networks grow. As the OTS-4400 supports wavelength translation capability (any input λ maps to any output λ on the ITU 50GHz grid) wavelength blocking is minimized, thus maximizing capacity utilization in a carrier network.
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