When you look at an SFP module, there will be many abbreviations that might be confusing for you. These abbreviations actually tell the characteristics of the modules. SR, LRM, LR, ER, and ZR are terms that are commonly seen on 10G SFP+ modules, and they stand for the transmission distance of the modules. Let us have a look into their meanings.
10GBase-SR
SR stands for ‘Short Range’. These transceivers support links up to 300 meters on multimode fiber and operate in 850nm wavelength. 10GBase-SR is the original multimode optics specification and is still the most commonly used ones by far. Adopting single low-cost solid-state laser assembly, it is also the cheapest 10GbE optical module available.
10GBase-LRM
LRM stands for ‘Long Reach Multimode’. These transceivers support links up to 220 meters on multimode fiber and operate in 1310nm wavelength. It is the replacement of 10GBase-LX4.
Continue to check out more.
Comments