Approved Optics Approved D-LINK DEM-311GT - Manual (Page 3)

DEM-311GT-A
1000base-SX SFP Module
850nm, 550m, MMF, LC RoHS6
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Approved Networks, Inc. www.ApprovedOptics.com Page 3 of 5
MOD_DEF ( 0:2 )
VoH 2.5 V
With Serial ID
VoL 0 0.5 V
Optical and Electrical Characteristics
Parameter Symbol Min. Typical Max. Unit
62.5μm Core Diameter MMF L 550 m
Data Rate 1.25 Gbps
Transmitter
Centre Wavelength λC 820 850 860 nm
Spectral Width (RMS) σ 0.85 nm
Average Output Power P0ut -9 -4 dBm
Extinction Ratio EX 9 dB
Rise/Fall Time(20%~~80%) tr/tf 260 ps
Output Optical Eye IUT-T G.957 Compliant
Data Input Swing Differential VIN 500 2000 mV
Input Differential Impedance ZIN 90 100 110 Ω
TX Disable
Disable 2.0 VCC+0.3
V
Enable 0 0.8
TX_Fault
Fault 2.0 VCC+0.3
V
Normal 0 0.8
TX_Disable Assert Time t_off 10 us
Receiver
Centre Wavelength λC 760 860 nm
Receiver Sensitivity PIN -17 dBm
Output Differential Impedance PIN 90 100 110 Ω
Data Output Swing Differential VOUT 370 2000 mV
Rise/Fall Time Tr/tf 2.2 ns
LOS De-Assert LOSD -20 dBm
LOS Assert LOSA -40 dBm
LOS
High 2.0 VCC+0.3
V
Low 0 0.8