DZS unveils Saber-4400 coherent metro/edge optical transport platform

Oct. 6, 2022
The environmentally hardened Saber-4400 provides multi-degree CDC flex-grid ROADM capabilities (among others) and supports up to 400 Gbps per wavelength.

DZS (NASDAQ: DZSI) has introduced the DZS Saber-4400, a 1RU modular coherent optical metro and edge transport platform. The environmentally hardened Saber-4400 provides multi-degree CDC flex-grid ROADM capabilities (among others) and supports up to 400 Gbps per wavelength.

The DZS Saber-4400 can accommodate four modules to provide a total per-shelf capacity of 1.6 Tbps. It is designed to operate in conditions from -40°C to +65°C and drive 100+ Gbps circuits up to 120 km without amplification – although the system will accommodate amplifier modules when longer reach is required. In fact, network operators can mix and match modules to support a range of capabilities as required. The functions include:

  • commercial and industrial temperature coherent muxponder/transponders
  • expandable multi-degree CDC flex-grid ROADM
  • optical cross-connect
  • add/drop
  • EDFA
  • Raman amplification
  • path protection
  • Layer 2/Layer 3 switching and routing (which DZS described as future options).

DZS believe that such capabilities will become increasingly necessary in the middle mile, particularly as U.S. broadband services providers expand these infrastructures with help from such programs as the Middle Mile Grant (MMG) program. The system satisfies that program’s “Buy American” provisions.

“Accelerating trends like the MMG program, proliferation of 5G mobile xHaul, increased transition to XGS-PON for rural broadband deployments, and push for business service scalability and agility are all driving demand for bandwidth at a new location in the network – the optical edge,” said Miguel Alonso, chief product officer at DZS. “The optical edge, located close to the subscriber in remote and environmentally challenging network locations, has never been required to transport hundreds of gigabits of bandwidth – until now. The environmentally hardened DZS Saber-4400 platform was purpose-built to address the requirements of the optical edge, leveraging coherent optics in an entirely new way and redefining the economics of optical metro and edge transport.”

“The DZS Saber-4400 platform is not only uniquely scalable, but is also compact, modular, and environmentally hardened, meaning that this 1RU, 11-inch-deep platform can easily fit in existing cabinets whether or not they are temperature controlled,” commented Chris Roland, CEO of telecom engineering consultancy Palmetto Engineering, via a DZS press release. “We estimate that this alone could save service providers anywhere from approximately $20,000 required for heat exchanger additions to an existing cabinet, to nearly $200,000 when laying a new pad and building a new hut or cabinet house, which is normally required to support upgraded transport.”

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About the Author

Stephen Hardy | Editorial Director and Associate Publisher, Lightwave

Stephen Hardy is editorial director and associate publisher of Lightwave and Broadband Technology Report, part of the Lighting & Technology Group at Endeavor Business Media. Stephen is responsible for establishing and executing editorial strategy across the both brands’ websites, email newsletters, events, and other information products. He has covered the fiber-optics space for more than 20 years, and communications and technology for more than 35 years. During his tenure, Lightwave has received awards from Folio: and the American Society of Business Press Editors (ASBPE) for editorial excellence. Prior to joining Lightwave in 1997, Stephen worked for Telecommunications magazine and the Journal of Electronic Defense.

Stephen has moderated panels at numerous events, including the Optica Executive Forum, ECOC, and SCTE Cable-Tec Expo. He also is program director for the Lightwave Innovation Reviews and the Diamond Technology Reviews.

He has written numerous articles in all aspects of optical communications and fiber-optic networks, including fiber to the home (FTTH), PON, optical components, DWDM, fiber cables, packet optical transport, optical transceivers, lasers, fiber optic testing, and more.

You can connect with Stephen on LinkedIn as well as Twitter.

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