PLANET EM-MII series_v7.0.pdf - Manual (Page 11)

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SFP Model
Physical
Fiber Cable Length “n” km
MFB-F20
MFB-TF20
MFB-F40 MFB-F60 MFB-F120
10 < n < 20 2 dB 4-6 dB 8-10 dB 25-27 dB
20 < n < 40 -- 2-4 dB 6-8 dB 23-25 dB
40 < n < 60 -- -- 2-4 dB 18-20 dB
SFP Model
Physical
Fiber Cable Length “n” km
MFB-TFA10
MFB-TFB10
MFB-FA20 / MFB-FB20
MFB-TFA20 / MFB-TFB20
MFB-TFA40
MFB-TFB40
10 < n < 20 -- 2 dB 4-6 dB
20 < n < 40 -- -- 2-4 dB
40 < n < 60 -- -- --