th transmission. In
850-nm multimode fiber systems modal dispersion turns out to be the leading-
limiting factor at data rates above 100Mbit/sec. For each increase in
bandwidth, distance is given up (see figure). (New transceiver designs
ease distance limitations as transmission rates increase; transceiver
designs must adapt to maintain fiber's advantage).
[pic]
(Refer Figure-New transceiver designs ease distance limitations as
transmission rates increase; transceiver designs must adapt to maintain
The highest transmission distance for Gigabit Ethernet over 62.5-
micron multimode fiber is approximately 275 m. At facilities where Fast
Ethernet was used effectively, this maximum distance has produced problems
in several upgrades. To extend the transmission distance to as much as 600
m at 1.25Gbit/sec, the wavelength of multimode transceiver has to be moved
to 1310 nm. However, either the launch of wavelength-division multiplexing
...