Magnum 6K25 Managed Fiber Switch | Installation and User Guide (04/06) |
4.6Power Budget Calculations for Magnum 6K25 PM’s with Fiber Media
Receiver Sensitivity and Transmitter Power are the parameters necessary to compute the power budget. To calculate the power budget of different fiber media installations using Magnum products, the following equations should be used:
OPB (Optical Power Budget) = PT(min) - PR(min)
where PT = Transmitter Output Power, and PR = Receiver Sensitivity
Worst case OPB = OPB - 1dB(for LED aging) - 1dB(for insertion loss) Worst case distance = {Worst case OPB, in dB} / [Cable Loss, in dB/Km]
where the “Cable Loss” for 62.5/125 and 50/125∝m (M.m) is 2.8 dB/km, and the “Cable Loss” for 100/140
and the “Cable Loss” for 9/125
and the “Cable Loss” for 9/125
(LXSC40)
and the “Cable Loss” for 9/125
The following data has been collected from component manufacturer’s (Agilent’s and Lucent’) web sites and catalogs to provide guidance to network designers and installers.
Fiber | Speed, |
| Std. | Wave | Cable | X’mitr | R’cvr | Worst | Worst* |
| typical | typical* |
Port | Std. | Mode | km | - | Size | Output | Sens. | OPB, | distance |
| OPB, | distance |
Module |
| fdx | length | ∝m | PT , dB | PR ,dB | dB | Km, fdx |
| dB | Km, fdx | |
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6KP4- | 10Mb | Multi- | 2 | 850 | 62.5/125 | 14 | 5 |
| 17 | 6 | ||
F10ST | FL | Mode | (2) |
| 100/140 | 19.5 | 5.9 |
| 23.5 | 7 | ||
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| 50/125 | 19.5 | 3.4 |
| 13.5 | 4.8 | ||
6KPM- | 100Mb | Multi- | 2 | 1300 | 62.5/125 | 9.0 | 3.0 |
| 14 | 5 | ||
MST, MSC | FX | mode | (0.4) |
| 50/125 | 5.5 | 2.0 |
| 12 | 4 | ||
100Mb | Single- | 18+ | 1300 | 9/125 | 14 | 28 |
| 17.5 | 35 | |||
FX | mode | (0.4) |
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6KPM- | 100Mb | Single- | 40 | 1300 | 9/125 | 29 | 58 |
| 32.5 | 65 | ||
FX | mode | (0.4) |
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SSCL |
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6KPM- | 100Mb | Multi- | 2 | 1300 | 62.5/125 | 9.0 | 3.0 |
| 15.8 | 5.5 | ||
MTRJ | FX | mode | (0.4) |
| 50/125 | 5.5 | 2.0 |
| 12.2 | 4.0 | ||
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6KPM- | 100Mb | Multi- | 2 | 1300 | 62.5/125 | 12 | 4 |
| 16 | 5.7 | ||
FX | mode | (0.4) |
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MLC |
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100Mb | Single- | 15+ | 1310 | 9/125 | 11 | 22 |
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FX | Mode | (0.4) |
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GBIC- | 1000Mb | Multi- | 0.55 | 1300 | 62.5/125 | 5.5 | 2 |
| 12.5 | 4 | ||
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SXSC |
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GBIC- | 1000Mb | Single- | 10 | 1300 | 9/125 | 8.5 | 17 |
| 10.5 | 21 | ||
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LXSC10 |
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