Lantronix
SM4T4DPA Install Guide
33867 Rev. A
Page
26
of
29
Fiber Standards
: The International Telecommunication Union (ITU-T) has standardized various fiber types for data
networks. These are summarized in the following table.
ITU-T
Standard
Description
Application
G.651
Multimode Fiber
50/125-micron core
Short-reach connections in the 1300- nm or 850-nm band
G.652
Non-Dispersion-Shifted Fiber
Single-mode, 9/125-micron core
Longer spans and extended reach. Optimized for operation in
the 1310- nm band. but can also be used in the 1550-nm band
G.652.C
Low Water Peak Non-Dispersion-
Shifted Fiber Single-mode,
9/125-micron core
Longer spans and extended reach.
Optimized for wavelength-division multiplexing (WDM)
transmission across wavelengths from 1285 to 1625 nm.
The zero dispersion wavelength is in the 1310-nm region.
G.653
Dispersion-Shifted Fiber
Single-mode, 9/125-micron core
Longer spans and extended reach. Optimized for operation in
the region from 1500 to 1600-nm.
G.654
1550-nm Loss-Minimized Fiber
Single-mode, 9/125-micron core
Extended long-haul applications. Optimized for high-power
transmission in the 1500 to 1600-nm region, with low loss in
the 1550-nm band.
G.655
Non-Zero Dispersion-Shifted Fiber
Single-mode, 9/125-micron core
Extended long-haul applications. Optimized for high-power
dense wavelength-division multiplexing (DWDM) operation in
the region from 1500 to 1600-nm.