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2 - 12 ONline Ethernet 10BASE-FB Module Installation and Operation Guide
Maximum Link Distance Calculation
The following examples use the information provided in the previous pages
to calculate the maximum allowable fiber optic link distance between two
ports.
Example: 1700 Meter Fiber Link With Mechanical Splice
In the following example, two ONline concentrators are connected using
10BASE-FB Module ports.
Figure 2-1 shows an example of a 1700 meter fiber link with a mechanical
splice using 62.5/125 fiber cable
.
Figure 2-1. 1700 Meter Fiber Link With Mechanical Splice
To calculate the maximum link distance:
1. Use Table 2-3 to determine the optical power budget for 62.5/125
cable (10.0 dB).
2. Use Table 2-6 to determine the worst case loss for a mechanical splice
(1.0 dB).