OM1 refers to 850nm or 1300nm full inject ion bandwidthof 200/500MHZ or more 50um or 62. 5um core diameter mult imodefiber. (Gigabit transmission distance is only 275 meters)62.5/125- Gigabit transmission distance from - -275- A1b-0M1-American Standard
OM2 refers to a 50um or 62. 5um core diameter multimode fiberwi th 850nm or 1300nm full injecti on bandwi dth above 500/ 500MHZ.(Gigabit transmission distance 550 meters) 50/125- Gigabittransmission -550 -A1a-0M2- European standard
OM3 and OM4 are 50um core 850nm laser the mult imode fiber, using850nm, 10Gb/s Ethernet VCSEL, OM3 optical fiber transmi ssiondistance can reach 300M, OM4 can reach 550M (OM3- 150, OM3- -300,OM3- -550, and 150. 300. 550 respectively to Gigabit Transmi ssionCenter - meters part is 50 microns for Gigabit fiber)
Single mode, fiber bandwith can be regarded as infinite notZhaozhi million points
