When paired with multimode, the maximum transmission distance is 2km, and when paired with single-mode, the maximum transmission distance is 40km. It is typically measured in kilometers (km) for fiber optic links or meters for short-range multimode connections. This distance is not a fixed property of the. The maximum reach of a fiber optic cable is not a property of the cable alone — it is the result of a balance between the link attenuation and sensitivity of active equipment A single OS2 cable can carry 1 Gbps over 100 km with suitable modules, or only 10 Gbps over 10 km with standard modules. Single-mode SFP optical modules typically use wavelengths of 1310nm or 1550nm, paired with 9/125um single-mode fiber, supporting. SFP (Small Form-factor Pluggable) modules are standardized network transceivers that support a range of data rates (1G, 10G, 25G) and fiber types. Long-distance variants, typically referred to as LX, EX, ZX, or ER/LR SFPs, are engineered with higher optical power budgets and longer wavelength. At a wavelength of 850nm, a 100M optical module can transmit up to 2km, a 1G can transmit up to 550m, a 10G can transmit up to 300m, a 40G can transmit up to 400m, and 100G and 400G can transmit up to 100m. 1310nm: The attenuation of optical fiber at 1310nm is approximately 0.
