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1310/1490nm 20km 1.25G SFP Optical Transceivers
1310/1490nm 20km 1.25G SFP Optical Transceivers
1310/1490nm 20km 1.25G SFP Optical Transceivers

1310/1490nm 20km 1.25G SFP Optical Transceivers(DT-SFP-1310/1490-1.25G-20KM),To Be Used On a Series of Switches, Routers, 

Servers, Network InterfaceCard Etc,Package:SFP,Data Rate:1.25G,Wavelength:  1310/1490nm,Reach:20km,TX:FP,RX:PIN,TX


Model: DT-SFP-1310/1490-1.25G-20KM Brand: DAYTAI
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Product Description

1310/1490nm 20km 1.25G SFP Optical Transceivers(DT-SFP-1310/1490-1.25G-20KM),To Be Used On a Series of Switches, Routers, 

Servers, Network InterfaceCard Etc,Package:SFP,Data Rate:1.25G,Wavelength:  1310/1490nm,Reach:20km,TX:FP,RX:PIN,TX

Power:-9~-3dBm,RX Sensitivity:-20dBm,,Compatible With the Brand:Cisco,Juniper,Brocade,Arista,Mellanox,HPE,Dell,

Dell Force10,Huawei...Etc is Optional.


Features

⊙ Compatible with RoHS

⊙+3.3V single power supply

⊙Operating case temperature:

⊙Standard : 0 to +70°C

⊙ Industrial : -40 to +85°C

⊙Hot-pluggable SFP footprint

⊙Metal enclosure, for lower EMI

⊙Up to 20km for SMF transmission

⊙Up to 1.25Gbps bi-directional data links

⊙BIDI LC/UPC type pluggable optical interface

⊙1310nm FP laser transmitter and PIN photo detector for DT-SFP-1310/1490-1.25G-20KM

⊙1490nm DFB laser transmitter and PIN photo detector for DT-SFP-1490/1310-1.25G-20KM

Specification

Optical transmitter Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Launched Power (avg.)

Pout

-9


-3

dBm


Center Wavelength

λc

1290

1310

1330

nm

DT-SFP-1310/1490-1.25G-20KM

1470

1490

1510

nm

DT-SFP-1490/1310-1.25G-20KM

Side Mode Suppression Ratio

SMSR

30



B


Extinction Ratio

ER

9



B


Spectrum Bandwidth(-20dB)

σ



1

nm


Data Input Swing Differential

VIN

180


1200

mV

1

Relative Intensity Noise

RIN

90

100

1 10

ohm


Output Eye Diagram

Complies with IEEE802.3z eye masks when filtered

Optical receiver Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Receiver Sensitivity

S



-20

dBm

2

Wavelength Range

λc

1470

1490

1510

nm

DT-SFP-1310/1490-1.25G-20KM

1290

1310

1330

nm

DT-SFP-1490/1310-1.25G-20KM

Optical Power Input Overload

Pin-max

- 1



dBm


Data Output Swing Differential

Vout

600

800

1000

mV


LOS

Optical De-assert

Pd



-24

dBm

3

Optical Assert

Pa

-38




LOS hysteresis


0.5

2

4

dB



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