Different light source to FE/GBE standard
30.08.2011
100Base-FX
-- infrared rays light source (LED) 1310nm, (VCSEL) 850nm, (FP)1310 and 1550nm up to 80km. (DFB) 1310 / 1550nm from 100km up to 120km.
1000BASE-SX --
short wave light source ,1 Gbit/s MMF, distance less than 500M.
1000BASE-LX --
long wave light source ,1 Gbit/s MMF, distance less than 2KM.
1000BASE-LX10 --
long wave light source , 1 Gbit/s SMF, distance less than 10KM.
1000BASE-LHX --
long wave light source , 1 Gbit/s SMF, distance between 10KM-40KM.
1000BASE-ZX --
1 Gbit/s SMF, distance between 40KM-70KM. (80KM)
( Others, ELX / XD / EZX…using long wave light source.)
Different wavelength can’t be linked for data transmission！
Category of GbE light source key component
Vertical cavity surface emitting laser,(VCSELs) 850nm for SX, long life time
Fabry-Perot-Laser (FP) for LX / LX10
Distributed-Feedback-Laser (DFB) LHX / XD / ZX / EZX
Avalanche Photodiode (APD) ZX / EZX
Edited by sea tel international co., limited
www.sea-tel.com