Alcatel-Lucent 10G XPR OTU2 XPonder Card (408977981 / WOWUAB6HAA)

The Alcatel‑Lucent 408977981 (also designated WOWUAB6HAA) is a 10 Gbps optical transponder and XPonder (transponder + muxponder) card designed for DWDM and OTN (Optical Transport Network) systems. This card maps client signals (such as 10G Ethernet, OC‑192/STM‑64, or Fibre Channel) into OTU‑2 frames for transport over dense wavelength division multiplexing networks. It provides flexible wavelength selection, forward error correction (FEC), and comprehensive performance monitoring, making it a key component for long‑haul and metro optical transport.

Overview

The XPR card is typically installed in Alcatel‑Lucent optical transport nodes, such as the 1626 LambdaXtreme or 1830 PSS series. It accepts a client signal via SFP+ or XFP optics and converts it to a standardized OTU‑2 signal at 10.709 Gbps. The card supports ITU‑T G.709 FEC for improved link budget and can be tuned to any DWDM channel in the C‑band. It also includes digital diagnostics and alarms for proactive network maintenance.

Key Features

• Client interfaces: 10GBASE‑R, OC‑192/STM‑64, 10G Fibre Channel

• OTU‑2 framing with G.709 FEC (Reed‑Solomon)

• Tunable DWDM laser (C‑band, 50 GHz grid)

• Integrated optical channel monitor (OCM) for power and wavelength

• Performance monitoring: pre‑FEC BER, OSNR, optical power

• Hot‑swappable and field‑replaceable

• Management via TL1, SNMP, and CLI

Technical Specifications

• Line Rate: 10.709 Gbps (OTU‑2)

• Client Interfaces: 1x SFP+ or XFP slot (customer‑selectable)

• Wavelength Range: 1530‑1565 nm (tunable, 50 GHz spacing)

• Transmit Power: -1 to +3 dBm (tunable)

• Receiver Sensitivity: -20 dBm (for 10⁻⁵ BER after FEC)

• FEC Gain: > 6 dB

• Power Consumption: 30 W typical

• Operating Temperature: 0°C to 45°C

• Dimensions: Standard optical card format (e.g., 1U or half‑slot)

Applications

This card is used in DWDM backbone and metro networks to transport high‑speed client signals over long distances, enabling service providers to offer 10G Ethernet, storage, and video services.

Integration and Management

The card integrates with Alcatel‑Lucent network management systems for wavelength provisioning, performance monitoring, and fault isolation. It supports remote software upgrades and alarm reporting.

Installation and Maintenance

Install the card into the chassis, insert the client SFP+/XFP, connect the fiber to the DWDM port, and configure wavelength and parameters via software. Routine maintenance includes cleaning optical connectors and monitoring performance parameters.

Conclusion

The Alcatel‑Lucent 408977981 10G XPR XPonder card provides flexible, high‑performance optical transport for demanding DWDM networks, ensuring reliable and efficient delivery of 10G services.