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20km 1310nm 3G SFP Transceiver

Features
  1. Operating data rate up to 3.072Gbps
  2. CPRI/OBSAI Compatible Optical Interface
  3. Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
  4. 1310nmDFB-LD Transmitter and PIN photo detector
  5. Distance up to 20km with SMF
  6. Digital Diagnostic Monitoring: Internal Calibration or External Calibration
  7. Compatible with RoHS
  8. +3.3V single power supply
  9. Operating case temperature:  Standard:  0 to 70 °    Industrial: -40 to +85°C

 

Applications
  1. Radio Base Station
  2. OBSAI rates 3.072Gb/s, 1.536Gb/s, 0.768Gb/s
  3. CPRI rates 3.072Gb/s, 2.4576Gb/s, 1.2288Gb/s, and 0.6144Gb/s
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20km 1310nm 3G SFP Optical Transceiver      

                                                                                                                                            

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Centre Wavelength

λc

1260

1310

1360

nm

 

Spectral Width(RMS)

σ

   

1

nm

 

Side Mode Suppression Ratio

SMSR

30

   

dB

 

Average Output Power

Pout

-5

 

0

dBm

1

Extinction Ratio

ER

8.2

 

12

dB

 

Optical Rise/Fall Time(20%~80%)

tr/tf

   

0.16

ns

 

Data Input Swing Differential

VIN

400

 

1800

mV

2

Input Differential Impedance

ZIN

90

100

110

Ω

 

TX Disable

Disable

 

2.0

 

Vcc

V

 

Enable

 

0

 

0.8

V

 

TX Fault

Fault

 

2.0

 

Vcc

V

 

Normal

 

0

 

0.8

V

 

Receiver

Centre Wavelength

λc

1260

 

1580

nm

 

Receiver Sensitivity

     

-18

dBm

3

Receiver Overload

 

-3

   

dBm

3

LOS De-Assert

LOSD

   

-20

dBm

 

LOS Assert

LOSA

-30

   

dBm

 

LOS Hysteresis

 

1

2

4

dB

 

Data Output Swing Differential

Vout

370

 

1800

mV

4

LOS

High

2.0

 

Vcc

V

 

Low

   

0.8

V

 

 

Digital Diagnostic Map

 

The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2-wire serial interface (SCL, SDA).

 

The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.

 

The digital diagnostic memory map specific data field defines as following.

 

Q&A

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Q: What are the advantages of SFP transceivers?

 

A: a. Ever since the cage of SFP is being placed into the PCB board in order to accept the transceiver, it can reduce the additional procedures in the production, thus lessening the overhead. And therefore, it makes the reconfiguration and replacement easier.

 

b. Owing to the removed optical component, SFP transceivers have augmented reliability. It allows the use of higher soldier temperatures.

 

 

Q: What is the safety guidelines of SFP transceiver?

 

A: Before you install SFP modules in a Cisco device or attempt to operate or service a Cisco device equipped with SFP modules, you must read and observe the important safety information in this publication.

 

Refer to the Regulatory Compliance and Safety Information publication or the Site Preparation and Safety Guide that supports your Cisco device for the complete list of translated safety warnings and agency approvals that apply to your Cisco device.

 

The Cisco SFP Transceiver Modules are equipped with a Class 1 Laser, which emits invisible radiation. Do not stare into open optical ports. These warnings apply to the Cisco SFP modules.

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