Approved-optics Approved 3COM 3CSFP91 Manuale Utente Scaricare il pdf (Pagina 3)

3CSFP91-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

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

Data Rate

1.25

Gbps

Transmitter

Centre Wavelength

λC

820 850 860 nm

Spectral Width (RMS)

0.85 nm

Average Output Power P0ut -9

-4 dBm

Extinction Ratio EX 9

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

Enable 0

0.8

TX_Fault

Fault

2.0

VCC+0.3

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

Low

0.8

1 2 3 4 5

3CSFP91-A 1

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