2 - 4 ONline Ethernet 10BASE-FL Installation and Operation Guide
5 Assume that one
meter of coaxial or
twisted pair is equal to
one meter of fiber
cable.
This is a conservative rule of thumb. For
example, the actual equivalence is
about 1.1 meters of coaxial for every
meter of fiber. For simplicity, assume
one meter.
6 The fiber link distances
must not exceed the
limits imposed by the
optical power budget.
In general, on 62.5 micron cable, you
can go up to 4000 meters
point-to-point using the ONcore o r
ONline Fiber Modules. If you have poor
quality cable or cross many patch
panels, you may have to sacrifice some
distance.
Some older Ethernet fiber optic
products are less powerful than
ONcore Fiber Module optics. So when
connecting to these products,
remember that the least powerful
device determines the maximum
point-to-point distance.
7 When in doubt, use a
bridge. If you are not certain if you have
exceeded allowable network distances,
use a bridge to extend the network.
Table2-1. Seven Basic N etwork Rules (Continued)
Rule Definition Recommendations/Notes