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The Ciena B-720-1087-301 (model F10E-A90-TN; HECI/CLEI: WMOTBYHFAA for ISS 1, WMOTCHBFAA for ISS 2) is an unprotected aggregation module for the Ciena CN 4200 FlexSelect Advanced Services Platform. Specifically, it works as a 10G muxponder, combining multiple lower-rate client services onto a single DWDM wavelength. As a result, operators carry more services over each fiber.

OTU2 Enhanced FEC and Tunable DWDM

In addition, the network side uses OTU2 framing with enhanced forward error correction (EFEC), which extends optical reach and improves signal integrity. Consequently, operators can run longer spans with fewer regenerators. Moreover, the ITU 50 GHz tunable laser lets operators place the wavelength anywhere on the DWDM grid, so one spare covers many channels.

Storage and Data Center Services

Furthermore, IBM qualified this module on the CN 4200 for GDPS and Server Time Protocol applications, carrying ESCON, 1G and 2G FICON, Fibre Channel, and ISL traffic. Therefore, it suits mainframe, storage replication, and data center interconnect networks. For details, see IBM’s CN 4200 qualification letter.

Where the B-720-1087-301 Fits

For these reasons, the module suits enterprise DWDM networks, storage extension, and spares for deployed CN 4200 systems. Since the CN 4200 is a legacy platform, the secondary market is now the main source for these cards. Likewise, it pairs with other CN 4200 modules such as the Ciena B-966-0013-001 CN-M6-FLEX-F multiservice module.

Key Features

• First, it aggregates lower-rate client services onto one 10G wavelength.
• Second, its OTU2 network side uses enhanced FEC for longer reach.
• Additionally, its ITU 50 GHz tunable laser covers the full DWDM grid.
• Furthermore, IBM qualified it for GDPS, FICON, and Fibre Channel traffic.
• Moreover, it operates in unprotected mode for simpler, lower-cost links.
• Finally, it works with the Ciena CN 4200 FlexSelect platform.

Why Lease from Telecom Leasing?

• First, you keep CN 4200 networks running without a large capital outlay.
• Second, we test every unit so it’s ready to deploy.
• In addition, flexible terms cover spares, upgrades, and project builds.
• Finally, you get fast quotes and quick shipping.

Best of all, Telecom Leasing offers the B-720-1087-301 for lease or purchase, so you can source legacy CN 4200 hardware with confidence.

Frequently Asked Questions

What is the Ciena B-720-1087-301?

In short, it’s the F10E-A90-TN, a CN 4200 unprotected aggregation module with an OTU2 enhanced-FEC network side and 50 GHz tunable DWDM optics.

What are the CLEI codes for this module?

Issue 1 units