With the technology transformations happening in today’s enterprises, many types of organizations – from hotels and gaming facilities to schools and offices – are deploying new fiber cabling infrastructure.
However, it’s crucial to understand the power budget of the new architecture, as well as the desired number of connections in each link. The power budget indicates the amount of loss that a link (from the transmitter to the receiver) can tolerate while maintaining an acceptable level of operation.
This blog provides you with multimode fiber (MMF) link specifications so you can ensure your fiber connections have sufficient power for best performance. In an upcoming blog, we’ll cover the link specifications for singlemode fiber.
Attenuation and Effective Modal Bandwidth
The latest IEC and ANSI/TIA standards ratified the maximum cabled fiber attenuation coefficients for OM3 and OM4 to 3.0 dB/km for cabled fiber at 850 nm. Attenuation is also known as “transmission loss,” and is the loss of optical power due to absorption, scattering, bending, etc. as light travels through the fiber. OM4 can support a longer reach than OM3, mainly due to its better light-confining characteristics, defined by its effective modal bandwidth (EMB).
Read full article