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Fiber Backbone, Twisted Pair To-The-Desk 2-7
3 Subtract the total equivalent distance of each hub located between
transceivers A and B [inclusive (965 m)] from the maximum network
diameter (4200 m). In this case, your subtotal is 3235 m.
4 Determine the total amount of cable between transceivers A and B
(1675 m) and subtract this number from the subtotal determined in
Step 3 (3235 m).
5 Your remaining distance equals 1560 m.
For the configuration shown in Figure 2-1
to work, the fiber equivalent
distance between transceiver A and transceiver B must be less than
4200 meters. As you can see in the calculation, there are still
1560 meters left for expansion in this configuration.
Note that the link from a 24-Port module to a 10BASE-T transceiver
should not exceed the 100 m distance specified in the IEEE 10BASE-T
standard.