Optical Ethernet interfaces
Đội ngũ của chúng tôi đang thực hiện bản dịch. Bài viết này tạm thời chưa có bản tiếng Việt và đang được hiển thị bằng tiếng Anh.
Ethernet optical interfaces follow a naming pattern like 10GBASE-SR. Reading the suffix tells you the medium, reach and wavelength a transceiver is built for.
Reading the suffix
- S — short reach on multi-mode fibre, 850 nm.
- L — long reach on single-mode fibre, 1310 nm.
- E / Z — extended/very long reach on single-mode, around 1550 nm.
- R — 64b/66b line coding (10G and above).
- A trailing number is the lane count —
SR4andLR4use four lanes.
Common examples
| Interface | Fibre | Wavelength |
|---|---|---|
| 1000BASE-SX | MMF | 850 nm |
| 1000BASE-LX | SMF | 1310 nm |
| 10GBASE-SR | MMF | 850 nm |
| 10GBASE-LR | SMF | 1310 nm |
| 100GBASE-SR4 | MMF (8 fibres) | 850 nm ×4 |
| 100GBASE-LR4 | SMF | 1295–1310 nm (CWDM ×4) |
In CodingBox
The module reports its supported interface and wavelength in memory; CodingBox decodes these fields on the Check transceiver screen so you can confirm a transceiver matches the link before deploying it.
Many of these interfaces (CWDM4, PSM4, FR/LR, ZR) started as industry MSAs rather than IEEE clauses — who defined what, and which pairs interoperate: Optical interface MSAs.