10GBASESRLR

10GBASESRLR is not an officially defined IEEE 802.3 10 Gigabit Ethernet standard. In practice, the label appears in some vendor documentation as a marketing term or product-family designation rather than a standardized specification. It is not recognized as a standalone standard by the IEEE and does not define a single, universal set of electrical or optical characteristics.

Official 10 Gigabit Ethernet standards distinct from any nonstandard label include 10GBASE-SR and 10GBASE-LR. 10GBASE-SR uses 850 nm VCSELs over multimode fiber and is intended for short-reach links, typically within data centers on OM3/OM4 fiber. 10GBASE-LR uses 1310 nm optics over single-mode fiber and supports long-reach links, up to about 10 kilometers. Other related standards include 10GBASE-LRM (long-reach over multimode fiber) and 10GBASE-ER (extended reach over single-mode fiber).

Because “SRLR” is not a formal standard, its meaning can vary by vendor. Some documents may imply compatibility across fiber types or marketingable reach characteristics, but such claims do not replace official wavelength, fiber, and distance parameters defined by recognized standards. For deployments, it is essential to verify the exact transmitter wavelength, receiver sensitivity, fiber type (MMF vs SMF), and supported reach from the specific transceiver or module datasheet rather than relying on a nonstandard label.

See also: 10GBASE-SR, 10GBASE-LR, 10GBASE-LRM, 10GBASE-ER, IEEE 802.3 10 Gb/s Ethernet standards.