Based on the data sheet of a 10GB SR port, there is a sentence that read: The launch power shall be the lesser of the class 1 safety limit or the maximum receive power. Class 1 laser requirements are defined by IEC 60825-1: 2001.
So the question is what is the requirement for the safety limit based on IEC 60825-1:2001? anoyone knows?
Max-1dBm and Min -9.9dBm So the power should be between -1 to -9.9 dBm.
10GB transmit level are Max.-1.2 to Min.-7.3
so max -1.2 is less than -1.0 within range.
For more about class 1 power see the link below, i suppose the warning is because that Class 1 power level are not harmful to eyes. Sometimes power can be more and they are giving warning that even though it is Class 1 but be careful. OTher then class1 you will see a warning.
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