
Therefore, for each pair of ONline Fiber Modules that a signal passes through, there is a fiber equivalent distance of 190 meters (140 m + 50 m = 190 m). In addition, a signal making a round trip through the module (that is, entering a port externally and exiting through another port on the same module) counts as 190 meters of fiber equivalent distance.
2.Do not count the ONline Ethernet Fiber Module and the ONline Ethernet
Example: Fiber Backbone, 10BASE-FL to-the-Desk
Use the following example to determine if the
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Fiber Module |
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| 450 m |
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| Concentrator B |
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| 1. Maximum |
| 4200 m | ||||||||||||||||
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| Diameter |
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| 2. FL | 330 m + 230 m | |
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| Modules |
| = 560 m | ||||
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| Equivalent Distance | |||||||
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1000 m |
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| 75 m |
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| 3. Fiber 50 m+190 m+140 m | ||||||||||||||||||||||||||||||
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| Modules |
| = 380 m |
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| Equivalent Distance | ||
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| 500 m |
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| 4. Cable Distance | 2025 m | ||||||||||||||||||||||||||||
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| Concentrator C |
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| (450 m + 1000 m + | ||||||||||||||||||
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| 500 m + 75 m) |
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C
Remaining
50 m Fiber Module
Distance
1235 m
Figure 2-8. Sample Fiber Backbone, 10BASE-FL to-the-Desk Configuration
2 - 24 ONline Ethernet