E-link China Technology Co., Ltd.

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Multi Mode Cisco Sfp Mini Gbic Transceiver Module 40km Distance EML Transmitter

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Multi Mode Cisco Sfp Mini Gbic Transceiver Module 40km Distance EML Transmitter

Multi Mode Cisco Sfp Mini Gbic Transceiver Module 40km Distance EML Transmitter
Multi Mode Cisco Sfp Mini Gbic Transceiver Module 40km Distance EML Transmitter

Large Image :  Multi Mode Cisco Sfp Mini Gbic Transceiver Module 40km Distance EML Transmitter

Product Details:
Place of Origin: Shenzhen, China
Brand Name: E-link China
Certification: CE, RoHS, FCC
Model Number: LNK-SFP-10G-ER
Payment & Shipping Terms:
Minimum Order Quantity: 1 piece
Price: Negotiation
Packaging Details: 10 piece in 1 carton box
Delivery Time: 3-5 working days
Payment Terms: T/T, Western Union, MoneyGram, Paypal
Supply Ability: 1000000000pcs/Month
Detailed Product Description
Data Links: 11.3Gbps Distance: 40km
 EML Transmitter: Support PIN Receiver: Support
SFP+ MSA With LC Connector: Support  Hot-pluggable SFP+ Footprint: Support
High Light:

cisco compatible sfp modules


fiber optic transceiver module


10G SFP+ 1550nm 40km Single Mode SFP Optical Transceiver Module


lUp to 11.3Gbps Data Links

  • Up to 40km transmission on SMF
  • EML transmitter and PIN receiver
  • Metal enclosure for lower EMI
  • 2-wire interface with integrated Digital Diagnostic monitoring
  • Hot-pluggable SFP+ footprint
  • Specifications compliant with SFF-8472
  • Compliant with SFP+ MSA with LC connector
  • Single 3.3V power supply
  • Industrial case operating temperature range: -40°C to 85°C

lWithout CDR or with CDR supported 9.95 to 11.3Gb/s reference-free

  • Low power dissipation:

LNK-10G-SFP-L45: 1.4W power dissipation without CDR for Industrial temperature LNK-10G-SFP-L45C: 1.5W power dissipation with CDR for Industrial temperature



l10GBASE-ER/EW & 10G Ethernet

  • 10G SONET/SDH, OTU2/2e



  • Compliant to SFF-8431
  • Compliant to SFF 8472
  • RoHS Compliant.


Ordering information





Product part Number






Wavelength (nm)



Transmission Distance(km)

Temperature Range





With/Without CDR

LNK-10G-SFP-L45 Single-mode fiber 1550 40 -40~85 Without CDR
LNK-10G-SFP-L45C Single-mode fiber 1550 40 -40~85 With CDR

Product Selection


E-LINK’s LNK-10G-SFP-L45 serial SFP+ transceiver is designed for use in 10-Gigabit Ethernet links up to 40km over single mode fiber. The module consists of 1550 EML Laser, InGaAs PIN and Preamplifier in a high-integrated optical sub-assembly. Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF-8472. The module data link up to 40km in 9/125um single mode fiber.


  1. Absolute Maximum Ratings



Parameter Symbol Min. Typ. Max. Unit Note
Storage Temperature Ts -40 - 85 ºC  
Relative Humidity RH 5 - 95 %  
Power Supply Voltage VCC -0.3 - 4 V  
Signal Input Voltage   Vcc-0.3 - Vcc+0.3 V  


  1. Recommended Operating Conditions


Parameter Symbol Min. Typ. Max. Unit Note


Case Operating Temperature



0 - 70



-40   85 LNK-SFP-10G-L45
Power Supply Voltage VCC 3.14 3.3 3.47 V  
Data Rate BR   10.3125 11.3 Gbps  
Max transmission Distance TD   40   km  
Coupled fiber Single mode fiber 9/125um SMF


  1. Optical Characteristics


Parameter Symbol Min. Typ. Max. Unit Note
Average Launched Power PO -1   +3 dBm Note (1)
Extinction Ratio ER 8.2     dB  
Center Wavelength λc 1530 1550 1565 nm  
Spectrum Band Width (-20dB) σ     1.0 nm  
SMSR   30     dB  
Transmitter OFF Output Power POff     -30 dBm  
Transmitter and Dispersion Penalty TDP     2.0 dB  
Output Eye Mask Compliant with IEEE 802.3ae    
Input Optical Wavelength λ 1270   1610 nm  
Receiver Sensitivity Psen     -16.0 dBm Note (2)
Input Saturation Power (Overload) Psat 0     dBm  
LOS Assert LOSA -30     dBm  
LOS De-assert LOSD     -17 dBm  


LOS Detect Hysteresis Phys 0.5     dB  



  1. Launched power (avg.) is power coupled into a single mode fiber with master connector.(Before of Life)
  2. Measured with conformance test signal for BER = 10^–12.@10.3125Gbps, PRBS=2^31-1,NRZ;Optical source with worst ER,Wavelength between 1530nm and 1565nm;back to back



IV.Electrical Characteristics


Parameter Symbol Min Typ Max Unit NOTE
Supply Voltage Vcc 3.14 3.3 3.46 V  



Supply Current (Note 1)










    430 LNK-SFP-10G-L45
    460 LNK-SFP-10G-L45C
Input differential impedance Rin   100   Ω 2
Single ended data input swing Vin-pp 180   700 mV  
Transmit Disable Voltage VDis 2.0   Vcc V 3
Transmit Enable Voltage VEN Vee   Vee+ 0.8 V  
Transmit Disable Assert Time       10 us  
Differential data output swing Vout-pp 400   800 mV 4
Data output rise time tr 28     ps 5
Data output fall time tf 28     ps 5
LOS output high level VLOS-H 2.0   VCCHOST V 6
LOS output low level VLOS-L Vee   Vee+0.8 V 6
Power Supply Rejection PSR 100     mVpp 7




  1. Measured with receive Pin=Psen, Vcc=3.3V, operation temperature range, without air flow
  2. Connected directly to TX data input pins. AC coupled .


  1. Or open circuit.
  2. Into 100 ohms differential termination. 5. 20 – 80 %.
  1. Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
  2. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through the recommended power supply filtering network.

Pin out of Connector Block on Host Board


Pin Symbol Name/Description NOTE



Transmitter Ground (Common with Receiver Ground) 1



Transmitter Fault. 2



Transmitter Disable. Laser output disabled on high or open. 3
4 SDA 2-wire Serial Interface Data Line 4
5 SCL 2-wire Serial Interface Clock Line 4
6 MOD_ABS Module Absent. Grounded within the module 4
7 RS0 no connection  
8 LOS Loss of Signal indication. Logic 0 indicates normal operation. 5
9 RS1 Internally connect to circuit ground  



Receiver Ground (Common with Transmitter Ground) 1



Receiver Ground (Common with Transmitter Ground) 1
12 RD- Receiver Inverted DATA out. AC Coupled  
13 RD+ Receiver Non-inverted DATA out. AC Coupled  





Receiver Ground (Common with Transmitter Ground) 1



Receiver Power Supply  



Transmitter Power Supply  



Transmitter Ground (Common with Receiver Ground) 1
18 TD+ Transmitter Non-Inverted DATA in. AC Coupled.  
19 TD- Transmitter Inverted DATA in. AC Coupled.  



Transmitter Ground (Common with Receiver Ground) 1


  1. Circuit ground is internally isolated from chassis ground.
  2. T is an LVTTL output. A high output indicates a transmitter fault caused by either the TX bias current or


the TX output power or the laser temperature exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the output is pulled to <0.8V.

  1. Laser output disabled on T >2.0V or open, enabled on T <0.8V.


  1. Should be pulled up with 4.7kΩ- 10kΩ on host board to a typical 3.3V voltage. MOD_ABS pulls low to indicate module is plugged in.
  2. LOS is open collector output. It should be pulled up with 4.7kΩ – 10kΩ on host board to a typical 3.3V voltage. Logic 0 indicates normal operation; logic 1 indicates loss of signal.



VI.Digital Diagnostic Functions

E-LINK’s LNK-SFP-10G-L45 serial transceivers support the 2-wire serial communication protocol as defined in the SFP+MSA. The standard SFP serial ID provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer, and other information.


Additionally, E-LINK SFP+ transceivers provide a unique enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range.


The SFP MSA defines a 256-byte memory map in EEPROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h).The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory map remains unchanged.


The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments of the E2PROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially.


Contact Details
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Contact Person: Mr. Michael Guo

Fax: 86-755-8312-8674

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