Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Single-fiber Gigabit Ethernet for metro and access networks — professionally tested and backed by a Lifetime Warranty.
This New Cisco ONS-SC-2GE-BX-D is a 1000BASE-BX BiDi SFP transceiver professionally tested and reset to factory defaults before shipment. Operating at 1490 nm transmit and 1310 nm receive, this downstream (BX-D) module delivers full-duplex Gigabit Ethernet over a single strand of single-mode fiber, eliminating the need for a dedicated fiber pair and making it an ideal fit for fiber-constrained environments. Every unit is sourced, inspected, and certified through WhaleyComm's ISO 9001, R2v3, and e-Stewards certified processes.
The ONS-SC-2GE-BX-D is engineered for the Cisco ONS multiservice transport family, supporting distances up to 10 km over single-mode fiber. Designed to pair with the ONS-SC-2GE-BX-U upstream module, it enables efficient bidirectional wavelength multiplexing across a single fiber strand — a proven architecture for metro Ethernet service delivery and ONS 15454-based packet-optical networks. The SFP form factor is hot-swappable and fully compliant with Cisco ONS optical specifications, ensuring seamless integration into existing ONS infrastructure.
Purchasing refurbished from WhaleyComm delivers the same Cisco-grade performance at a fraction of the cost of new, with no compromise on reliability. Trusted by 5,000+ enterprise and carrier customers over 25+ years, WhaleyComm backs every unit with a Lifetime Warranty — because confidence in your hardware should never have an expiration date.
Technical Specifications
Connector Type
SC Simplex
Fiber Type
Single-Mode Fiber (SMF)
Transmit Wavelength
1490 nm
Receive Wavelength
1310 nm
Direction
Downstream (BX-D)
Operating Temperature
0°C to 70°C
Ideal Use Cases
Metro Ethernet Service Delivery
Provides carrier-grade Gigabit Ethernet transport over single-mode fiber in metro access rings and point-to-point service segments, reducing fiber consumption per service.
Fiber-Constrained Access Networks
BiDi operation over a single fiber strand makes this module well suited for access deployments where available fiber count is limited and installing additional plant is not practical.
Cisco ONS 15454 Gigabit Ethernet Transport
Directly supported on the Cisco ONS 15454 MSTP, M6, M12, SDH, and SONET platforms, enabling native GbE client transport within established SONET and SDH transport frameworks.
Single-Fiber Service Turn-Up
Paired with the ONS-SC-2GE-BX-U module, this transceiver enables bidirectional Gigabit Ethernet service turn-up on a single fiber strand, accelerating provisioning in dense service environments.
Packet-Optical Network Integration
Designed for SONET/SDH and packet-optical environments, the ONS-SC-2GE-BX-D supports mixed-transport architectures where Ethernet and legacy transport services share the same optical infrastructure.
What's Included
Cisco ONS-SC-2GE-BX-D BiDi SFP Transceiver
Certificate of Testing
Lifetime Warranty — No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. We have stood behind our hardware for 25 years and 5,000+ customers — that is not a marketing line, it is our operating standard.
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Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
The ONS-SC-2GE-BX-D is supported on the following Cisco ONS transport platforms
For compatibility verification specific to your environment, contact our engineering team: +1 214 607-4800 or sales@whaleycomm.com