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Terminology
- Power level
- The power level from optics is measured in microwatts but converted to dBm for ease of reading by humans
- dB is on a logarithmic scale
- The higher the dBm the stronger your receive level
- The lower the dBm the weaker your receive level
Milliwatts to dBm conversion table and some examples (rounding happening on some examples)
Power in milliwatts Power in dBm 1310 and 1550 10G Optic Examples 10 10 9 8 7 4 6 5 4 2 3 2 1 Transmit minimum for some 10G ZR optics (80km) 1 0 -1 Transmit minimum for some 10G ER optics (40km) -2 -3 -4 -5 -6 -7 -8 Transmit minimum for some 10G LR optics (10km) -9 0.1 -10 LR color coded blue ER color coded yellow ZR color coded red -11 ~6dB power budget ~11dB power budget ~23dB power budget -12 -13 -14 Receive minimum for some 10G LR optics (10km) -15 Receive minimum for some 10G ER optics (40km) -16 -17 -18 -19 0.01 -20 -21 -22 -23 Receive minimum for some 10G ZR optics (80km) -24 -25 -26 -27 -28 -29 0.001 -30
Estimates
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