The metropolitan network challenge
EON Technology supplies CWDM and DWDM transceivers for metropolitan and Metro Ethernet networks, so you can multiply capacity between POPs on the fiber you already own, with compatibility validated by model, firmware, port and optical part number. One partner covers the 1G/10G colored optics and the 100G trunks that connect them.
Metropolitan area networks (MAN) interconnect POPs, buildings and data centers within a city, and carry Metro Ethernet services (Carrier Ethernet, as defined by the MEF, the Metro Ethernet Forum) for enterprise customers and operators. The recurring challenge is adding capacity between nodes without laying more fiber, which is the expensive, slow-to-install resource in any urban plant.
Typical architecture and where the optics fit
The answer is wavelength-division multiplexing (WDM): several channels share one fiber, each on its own wavelength, combined and separated by passive mux/demux units at each end.
- CWDM: up to 18 channels spaced 20 nm apart, with uncooled lasers. Economical for metro rings with a moderate channel count and reaches of 40 to 80 km.
- DWDM: tens or hundreds of channels in the C/L band with EDFA amplification; scales to high capacity and long distances, and tunable modules simplify spares.
- BiDi: a complete link over a single fiber, ideal when strands are scarce or leased per fiber.
Wavelength, transmit power, receiver sensitivity and the loss budget of each span decide which module fits each channel; the glossary covers the terms.
Recommended transceivers
- CWDM/DWDM optics in SFP and SFP+ form factors for 1G/10G metropolitan links.
- For higher-capacity trunks, see high-speed solutions and the QSFP28 (100G) product family.
Before ordering, have at hand the platform model and firmware on each end, the port type (SFP or SFP+), the channel plan (CWDM wavelength or DWDM ITU channel), the span length and the measured loss budget, including mux/demux insertion loss. With that we confirm the optical part number per channel and whether the platform needs recoding. Rings that mix 1G and 10G services on the same fiber can run both rates on one CWDM mux, so a service upgrade means swapping only the module at each end while the rest of the channel plan stays untouched.
Why EON Technology
We supply multivendor metropolitan optics with compatibility validated by model, firmware, port and optical part number. Some platforms report third-party optics as unsupported; when yours does, transceiver recoding adapts and validates the module, with 90-day service coverage. You get significant savings against the OEM part and engineering support before and after purchase, backed by a 1- to 5-year product warranty. EON serves Latin America and Spain from a centralized operation in Colombia. Validate your channel plan in a proof of concept, check the compatibility matrix or talk to an engineer.