3Com 2000 TR Switch User Manual


 
TR-in-FE Cable Specification C-3
The same cable would have a 500 MHz of bandwidth
at 1 km (0.625 miles).
A fiber cable with a bandwidth specification of 200
MHz.km would have only 100 MHz of bandwidth at
2 km (1.25 miles), which would not support TR-in-FE.
In this case, another type of fiber which has a band-
width of 155 MHz would be required.