Cisco SFP-10G-ZR 10G 80km Single-Mode Optical Transceiver
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Engineering a long-reach single-mode optical link
Check loss, receiver limits and operating margin across the complete fiber route.
Deployment scope
Check loss, receiver limits and operating margin across the complete fiber route. Collect the fiber route and loss measurements, then calculate the full link budget against the exact optics. Include connector and splice loss and a justified reserve. Check dispersion and relevant operating limits as documented for the selected parts.
Component decisions
- SFP-10G-ZR is a 10G single-mode, duplex-LC, nominal 1550 nm optic with a documented long-reach application. It must not be assigned 100G ZR parameters.
- Distance alone does not account for connectors, splices, patching, fiber loss or engineering margin.
- Both weak received power and receiver overload require evaluation. Any attenuation must follow the actual transmitter and receiver specifications.
Acceptance plan
- Inspect and clean connectors; document measured link loss.
- Measure transmit and receive power at both ends and compare with their limits.
- Verify error performance, temperature behavior and monitoring thresholds.
Configuration boundary
The nominal reach is conditional on an optical link meeting specified requirements. Two routes of equal length can have different loss and dispersion. A short route can also overload a receiver. Base acceptance on measurements and the complete optical budget rather than kilometers alone.
Technical references
Cisco 10G SFP+ — official reference: https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/transceiver-modules/data_sheet_c78-455693.html Cisco — official reference: https://tmgmatrix.cisco.com/ Boost your 80km links to 100G with QSFP-100G-ZR4-S optical modules — official reference: https://blogs.cisco.com/sp/boost-your-80km-links-to-100g-with-qsfp-100g-zr4-s-optical-modules
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