China Industrial Unmanaged Switch manufacturer
E-link China Technology Co., Ltd.
E-link China Technology Co.,Ltd. Professional Fiber Optical Communication and CCTV Security Transmission Product Manufacturer
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DFB SMF SFP Optical Transceiver Module High Performance Dual Data Rate

DFB SMF SFP Optical Transceiver Module High Performance Dual Data Rate

Brand Name E-link China
Model Number LNK-SFP-2.5G-40
Certification CE, RoHS, FCC
Place of Origin Shenzhen, China
Minimum Order Quantity 1 piece
Payment Terms T/T, Western Union, MoneyGram, Paypal
Supply Ability 1000000000pcs/Month
Delivery Time 3-5 working days
Packaging Details 10 piece in 1 carton box
Data Rate 2.5G
Connector LC
Distance 40KM
Wavelength 1550nm
Power 3.3V
Warranty 2 years
Price Negotiation
Detailed Product Description

2.5G SFP Dual Fiber 1550nm DFB Up to 40km on SMF SFP Optical Transceiver Module

Features

  • Up to 2.5Gb/s data links
  • 1310nm DFB laser transmitter and APD photo-detector
  • Up to 40km on 9/125μm SMF
  • Hot-pluggable SFP footprint
  • Duplex LC/UPC type pluggable optical interface
  • Metal enclosure, for lower EMI
  • RoHS compliant and lead-free
  • Support Digital Diagnostic Monitoring interface
  • Single +3.3V power supply
  • Compliant with SFF-8472
  • Operating case temperature:

Commercial : 0 to +70°C

Industrial : -40 to +85°C

 

Applications

  • Switch to Switch Interface
  • Gigabit Ethernet
  • Switched Backplane Applications
  • Router/Server Interface
  • Other Optical Links

 

Description

The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 2.5Gbps and 40km transmission distance with SMF.

The transceiver consists of three sections: a DFB laser transmitter, a APD photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.

The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For

further information, please refer to SFP MSA.

 

 

 

Absolute Maximum Ratings

Table 1 - Absolute Maximum Ratings

ParameterSymbolMinMaxUnit
Supply VoltageVcc-0.54.5V
Storage TemperatureTs-40+85°C
Operating Humidity-585%
 

 

 

Recommended Operating Conditions

Table 2 - Recommended Operating Conditions

ParameterSymbolMinTypicalMaxUnit
Operating Case TemperatureStandardTc0 +70°C
Industrial-40 +85°C
Power Supply VoltageVcc3.133.33.47V
Power Supply CurrentIcc  300mA
Data Rate  2.5 Gbps
 

 

 

 

Optical and Electrical Characteristics

Table 3 - Optical and Electrical Characteristics

ParameterSymbolMinTypicalMaxUnitNotes
Transmitter
Centre Wavelengthλc128013101340nm 
Spectral Width (-20dB)∆λ  1nm 
Side Mode Suppression RatioSMSR30  dB 
Average Output PowerPout-2 +3dBm1
Extinction RatioER9  dB 
Optical Rise/Fall Timetr/tf  0.16ns 
Data Input Swing DifferentialVIN400 1800mV2
Input Differential ImpedanceZIN90100110Ω 
TX DisableDisable 2.0 VccV 
Enable 0 0.8V 
TX FaultFault 2.0 VccV 
Normal 0 0.8V 
Receiver
Centre Wavelengthλc1260 1580nm 
Receiver Sensitivity   -28dBm3
Receiver Overload -9  dBm3
LOS De-AssertLOSD  -30dBm 
LOS AssertLOSA-40  dBm 
LOS Hysteresis 1 4dB 
Data Output Swing DifferentialVout370 1800mV4
LOSHigh2.0 VccV 
Low  0.8V 
         
 

Notes:

1. The optical power is launched into SMF.

2. PECL input, internally AC-coupled and terminated.

3. Measured with a PRBS 27-1 test pattern @2500Mbps, BER ≤1×10-12

4. Internally AC-coupled.

 

 

Timing and Electrical

Table 4 - Timing and Electrical

ParameterSymbolMinTypicalMaxUnit
Tx Disable Negate Timet_on  1ms
Tx Disable Assert Timet_off  10µs
Time To Initialize, including Reset of Tx Faultt_init  300ms
Tx Fault Assert Timet_fault  100µs
Tx Disable To Resett_reset10  µs
LOS Assert Timet_loss_on  100µs
LOS De-assert Timet_loss_off  100µs
Serial ID Clock Ratef_serial_clock  400KHz
MOD_DEF (0:2)-HighVH2 VccV
MOD_DEF (0:2)-LowVL  0.8V
 

 

 

Diagnostics

Table 5 – Diagnostics Specification

ParameterRangeUnitAccuracyCalibration
Temperature0 to +70°C±3°CInternal / External
-40 to +85
Voltage3.0 to 3.6V±3%Internal / External
Bias Current0 to 100mA±10%Internal / External
TX Power-2 to +3dBm±3dBInternal / External
RX Power-30 to -9dBm±3dBInternal / External
 
Product Tags: cisco compatible sfp modules   fiber optic transceiver module  
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