800GBASE-DR8 optical channel insertion-loss limit
3.0 dBobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| Scope | Undated application overview checked on this date, describing IEEE 802.3df-2024 DR8: eight parallel optical lanes per direction, 16 SMF fibers, 1310 nm, OS2 reach to 500 m. The page’s apparent symbol-rate typo is not used. This is a passive channel limit, not a field pre-FEC BER threshold. |
| As of | 2026 |
| Source | TIA Fiber Optics Technology Consortium, IEEE 802.3 Ethernet standards update, single-mode standard page (undated). |
| Review | checking…review by 2026-12-05 · standard cadence |
| Recorded changes | last 2026-09-16 |
| Claim id | part8-dr8-channel-limit |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.