FAQ & Glossary
Optical Connectivity Glossary
A concise reference for common terms used across NRCube guides.
Overview
The glossary connects physical-interface, optical, cabling and qualification terminology used during product selection.
Key planning checks
- AOC: active optical cable with fixed module ends.
- DAC: direct-attach copper cable assembly.
- DOM/DDM: digital monitoring of module operating parameters.
- PMD: physical-medium-dependent optical specification.
- MSA: multi-source agreement defining common implementation requirements.
- FEC: forward error correction used to improve link integrity.
- BiDi: bidirectional transmission using complementary wavelengths on one fiber.
- Breakout: division of a higher-speed port into multiple lower-speed links.
NRCube review note
Keep the unknowns visible
Use each term in the context of the complete product and platform specification.