According to Cisco Networking Academy Online Curriculum CCNA3 chapter 4.1.9 FUll-Duplex transmitting. Interactive Media Activity. IT claims that 100BASE-FX has a maximum distance of 2 Kilometres not 400 metres specified on this page. Can anyone please clarify upon this point. cheers!
Cisco stuff is copyright protected, so I can quota out the exact content.
I've just found out that Maximum length is 400 meters for half-duplex connections (to ensure collisions are detected) or 2 kilometers for full-duplex. I've editted this on the actual page.