Alcatel 1640 WM
Settembre 29, 2025
The Alcatel 1640 WM is a legacy high-capacity wavelength-multiplexing system designed to support the expansive needs of optical networks. Adhering to G.692 ITU-T standards, the 1640 WM functions both as an Optical Terminal Multiplexer for point-to-point connections and as an Optical Add/Drop Multiplexer for more complex multi-point applications. Its ability to handle up to 1600 Gb/s traffic over a pair of fibers in the C optical band showcases its significant role in historical network expansions, providing a foundation for further upgrades and capacity enhancements in the C, L, and S optical bands.
Il Alcatel 1640 WM is a versatile synchronous digital hierarchy (SDH) transmission system designed to provide flexible and reliable broadband connectivity within telecommunications networks. As part of Alcatel’s long-established optical transmission portfolio, the 1640 WM enables carriers to deliver high-capacity transport services while supporting a range of configurations for both backbone and metro applications. Its modular design makes it suitable for a wide range of deployments, offering efficient bandwidth management and scalability to meet the evolving needs of telecom operators.
At Carritech, we specialise in supporting legacy transmission systems like the Alcatel 1640 WM, ensuring that operators can continue to maximise the value of their existing infrastructure. We provide a full range of services, including sourcing rare and hard-to-find spare parts, expert repairs, and Level 3 remote technical support, enabling customers to extend the lifecycle of their Alcatel transmission networks with confidence.
Modularity: The 1640 WM’s design is compact and modular, consisting of three types of shelves that can be used in both terminal and line stations, fitting into Alcatel ETSI-compliant racks.
Forward Error Correction: Includes FEC functionality across all synchronous versions of Wavelength Adapters for improved performance and per-channel monitoring.
Software Configurable Channels: The Add/Drop functionality is software configurable for each channel, providing tailored network solutions.
Extended Reach: Capable of transmitting over distances more than 900 km without the need for optical-electrical conversion, thanks to its advanced line stations and amplification technology.
The Alcatel 1640 WM has served as a crucial component in the development of optical networks, offering service providers a versatile and scalable solution to accommodate growing data traffic demands while maintaining the reliability and efficiency expected of legacy telecommunications equipment.
Compatibility: The system is compatible with a range of fiber types including G.652, G.653, G.654, and G.655, ensuring broad application across different network infrastructures.
Capacity: Initially, the 1640 WM supports up to 1600 Gb/s traffic in the C band, with potential expansion to 160 channels using C and L bands and up to 240 channels with the addition of the S band.
Bit Rates: It accommodates synchronous bit rates from STM-16 to STM-256, including STM-64, and asynchronous rates from 100 Mb/s to 1.7 Gb/s.
Amplification: The system’s optical amplification relies on two-stage in-line amplifiers, suitable for long multi-span applications exceeding 900 km on a 0.25 dB/km fiber.
Add/Drop Functionality: Features 8 ports per site for Optical Add/Drop or Dispersion Compensating Unit in the in-line amplifier interstage, enhancing network flexibility.
Network Management: Managed through Alcatel’s remote and centralized system, ensuring efficient control and monitoring.
| Period | Owner / Marketer | Notes |
|---|---|---|
| Late 1990s–2006 | Alcatel | Initially developed and marketed the 1640 WM as a high-capacity DWDM optical multiplexer platform under the Alcatel brand. |
| 2006–2016 | Alcatel‑Lucent | Following the merger in 2006, the 1640 WM continued to be marketed and supported under the Alcatel‑Lucent brand. |
| 2016–Present | Nokia | With Nokia’s acquisition of Alcatel‑Lucent in 2016, the 1640 WM became part of Nokia’s legacy DWDM product portfolio, with ongoing support and documentation. |
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Dalla manutenzione e riparazione da parte di esperti al reperimento affidabile dei pezzi di ricambio e alla consulenza tecnica, forniamo un supporto completo per ogni fase del ciclo di vita della vostra rete. Che si tratti di prolungare la vita dei sistemi preesistenti o di integrarsi con un'infrastruttura moderna, il nostro team garantisce soluzioni efficienti e convenienti, in modo che possiate concentrarvi sulle prestazioni e non sui problemi.
The Alcatel 1640 Wavelength Manager (WM) is designed to provide precise optical wavelength management within DWDM transport systems. It plays a key role in building flexible, high-capacity optical networks by enabling multiplexing, demultiplexing, add/drop, and routing of wavelengths across metro, regional, and long-haul environments. The 1640 WM helps operators optimize bandwidth utilization, extend the scalability of their optical layer, and support both legacy and next-generation network architectures. We offer expert repair services, tailored maintenance solutions, and a reliable inventory of spare parts to ensure consistent performance and long-term operational resilience. Whether you are modernizing your backbone or extending the service life of existing DWDM infrastructure, the 1640 WM provides the essential wavelength management capabilities to keep your network efficient and future-ready.