... | ... | @@ -37,9 +37,10 @@ Absolute calibration is achieved by measuring the time relationship (Δ |
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<sub>TXcal</sub>, Δ <sub>RXcal</sub>) between the external electrical
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phase planes of the PPS signal and the interface to the
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Electrical-Optical / Optical-Electrical converter (EO/OE, usually the
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electrical SFP connector) as shown in Figure 1.
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electrical SFP connector) as shown in Figure
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1.
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![](/uploads/657303957aedcdf4f2a405688a0af840/absolute_calibration_detail.png)
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*Figure 1: White Rabbit link delay model for absolute calibration**
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EO/OE converters have their own calibration parameters that define the
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