Datasheet
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Page 6 of 10 
FG-TRAN-SFP+SR-AOK 
FORTINET, 10GBASE-SR SFP+ MMF 
850NM 300M REACH LC 
1) Return Loss given by equation Sxx22(dB) = -8+13.33 Log10(f/5.5), with f in GHz; 
2) Common mode reference impedance is 25Ω. Common mode return loss helps absorb 
reflection and noise improving EMI. 
Optical Characteristics 
General Parameters  
Parameter  
Conditions  
Bandwidth 
Min Modal 
(MHz*km)  
Symbol  
Min  
Typical 
1GBd  
Typical 
10GBd  
Units  
Operating 
Range 
62.5 µm MMF 
50 µm MMF 
62.5 µm MMF 
50 µm MMF 
50 µm MMF 
160 
400 
200 
500 
2000 
lOP 
2 
2 
0.5 
0.5 
0.5 
220 
500 
275 
550 
X 
26 
66 
33 
82 
300 
m  
Optical Transmitter 
Parameter Optical 
Transmitter  
Conditions  
Symbol  
Min  
Typ  
Max  
Units  
Nominal Wavelength 
λΤΡΠ 
840 
850 
860 
nm 
Fiber Channel version 
0.65 
Spectral Width  
Ethernet version 
Δλ 
0.45 
Average Launch 
Power 
Pavg 
-7.3 
-1 
dBm 
Fiber Channel version 
-5.2 
Average Launch 
Power 
Ethernet version 
POMA 
-4.3 
3.5 
Extinction Ratio  
Ethernet 1.25GBd 
ER 
tbd 
dB 
Relative Intensity 
Noise 
RIN 
-128  
dB/Hz 










