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Multimode Fiber SFP Optical Transceiver Module 11.3Gbit/S Per Channel 300 Meter

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Multimode Fiber SFP Optical Transceiver Module 11.3Gbit/S Per Channel 300 Meter

Multimode Fiber SFP Optical Transceiver Module 11.3Gbit/S Per Channel 300 Meter
Multimode Fiber SFP Optical Transceiver Module 11.3Gbit/S Per Channel 300 Meter

Large Image :  Multimode Fiber SFP Optical Transceiver Module 11.3Gbit/S Per Channel 300 Meter

Product Details:
Place of Origin: Shenzhen, China
Brand Name: E-link China
Certification: CE, RoHS, FCC
Model Number: LNK-QSFP-eSR4
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
Fiber: OM3 Multimode Distance: 300 Meters
Data Rate: 11.3Gbit/s Per Channel Hot Pluggable QSFP: Support
Digital Diagnostic Function: Built-in Operating Case Temperature: 0°C To +70°C
High Light:

cisco compatible sfp modules


fiber optic transceiver module

40Gb/s QSFP+ eSR4 OM3 Multimode Fiber 300 Meter Optical Transceiver Module



●Up to 300m on OM3 Multimode Fiber (MMF)

●Four-channel full-duplex transceiver modules

●Transmission data rate up to 11.3Gbit/s per channel

●Low power consumption <1.5W

●Operating case temperature 0°C to +70°C

●3.3V power supply voltage

●RoHS 6 compliant

●Hot Pluggable QSFP form factor

●MPO connector receptacle

●Built-in digital diagnostic function



●InfiniBand QDR, DDR and SDR

●Proprietary High Speed Interconnections

●Data center




The E-link LNK-QSFP-ISR4-100M is a Four-Channel, Pluggable, Parallel, Fiber-Optic QSFP+ Transceiver for InfiniBand QDR/DDR/SDR,12G/10G/8G/4G/2G fiber channel, PCIe and SAS Applications. The QSFP full-duplex optical module offers 4 independent transmit and receive channels, each capable of 11.3Gbps operation for an aggregate data rate of 45.2Gbps 300m using OM3 fiber. These modules are designed to operate over multimode fiber systems using 850nmVCSEL laser array.An optical fiber ribbon cable with an MPO/MTPTM connector can be plugged into the QSFP module receptacle. QSFP+ eSR4 is one kind of parallel transceiver which provides increased port density and total system cost savings.


Absolute Maximum Ratings

The operation in excess of any absolute maximum ratings might cause permanent damage to this module.

Parameter Symbol Min Max Unit Note
Storage Temperature TST -40 85 degC  
Relative Humidity(non-condensing) RH 0 85 %  
Operating Case Temperature TOPC 0 70 degC  
Supply Voltage VCC -0.3 3.6 V  
Input Voltage Vin -0.3 Vcc+0.3 V  



Recommended Operating Conditions and Supply Requirements

Parameter Symbol Min Typical Max Unit
Operating Case Temperature TOPC 0   70 degC
Power Supply Voltage VCC 3.13 3.3 3.47 V
Power Consumption   -   1.5 W
Data Rate DR   10.3 11.3 Gbps
Data Speed Tolerance ∆DR -100   +100 ppm
Link Distance with OM3 fiber D 0   300 m









Optical Characteristics

All parameters are specified under the recommended operating conditions with PRBS31 data pattern unless otherwise specified.

Parameter Symbol Min Typical Max Unit Notes
Center Wavelength λC 840 850 860 nm 1
RMS Spectral Width λrms -   0.4 nm 1
Average Launch Power, each lane PAVG -7 -2.5 0 dBm  
Optical Modulation Amplitude (OMA) POMA -5 -2.5 0 dBm 1
Difference in Launch Power between any two lanes Ptx,diff     4.0 dB  
Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each Lane OMA-TDP     3.5 dB 1
Rise/Fall Time Tr/Tf     50 ps  
Extinction Ratio ER 3.5     dB  
Transmitter Eye Mask Margin EMM 10     % 2
Average Launch Power OFF Transmitter, each Lane Poff     -30 dBm  
Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3}   {0.25, 0.4, 0.45, 0.25, 0.28, 0.4}        





















Parameter Symbol Min Typical Max Unit Notes
Center Wavelength λC 840 850 860 nm  
Damage Threshold THd +3     dBm  
Overload, each lane OVL +2.4     dBm  
Receiver Sensitivity in OMA, each Lane SEN     -9.5 dBm  
Signal Loss Assert Threshold LOSA -30     dBm  
Signal Loss Deassert Threshold LOSD     -9 dBm  
LOS Hysteresis LOSH 0.5   6 dB  
Optical Return Loss ORL     -12 dBm  










  1. Transmitter wavelength, RMS spectral width and power need to meet the OMA minus TDP specs to guarantee link performance.
  2. The eye diagram is tested with 1000 waveform.


Electrical Specifications

Parameter Symbol Min Typical Max Unit
Differential input impedance Zin 90 100 110 ohm
Differential Output impedance Zout 90 100 110 ohm
Differential input voltage amplitude ΔVin 300   1100 mVp-p
Differential output voltage amplitude ΔVout 500   800 mVp-p
Bit Error Rate BR     E-12
Input Logic Level High VIH 2.0   VCC V
Input Logic Level Low VIL 0   0.8 V
Output Logic Level High VOH VCC-0.5   VCC V
Output Logic Level Low VOL 0   0.4 V


Pin Descriptions

PIN Logic Symbol Name/Description Note
1   GND Ground 1
2 CML-I Tx2n Transmitter Inverted Data Input  
3 CML-I Tx2p Transmitter Non-Inverted Data output  
4   GND Ground 1
5 CML-I Tx4n Transmitter Inverted Data Input  
6 CML-I Tx4p Transmitter Non-Inverted Data output  
7   GND Ground 1
8 LVTLL-I ModSelL Module Select  
9 LVTLL-I ResetL Module Reset  
10   VccRx ﹢3.3V Power Supply Receiver 2
11 LVCMOS-I/O SCL 2-Wire Serial Interface Clock  
12 LVCMOS-I/O SDA 2-Wire Serial Interface Data  
13   GND Ground  
14 CML-O Rx3p Receiver Non-Inverted Data Output  
15 CML-O Rx3n Receiver Inverted Data Output  
16   GND Ground 1
17 CML-O Rx1p Receiver Non-Inverted Data Output  
18 CML-O Rx1n Receiver Inverted Data Output  
19   GND Ground 1
20   GND Ground 1
21 CML-O Rx2n Receiver Inverted Data Output  
22 CML-O Rx2p Receiver Non-Inverted Data Output  
23   GND Ground 1
24 CML-O Rx4n Receiver Inverted Data Output 1
25 CML-O Rx4p Receiver Non-Inverted Data Output  
26   GND Ground 1
27 LVTTL-O ModPrsL Module Present  
28 LVTTL-O IntL Interrupt  
29   VccTx +3.3 V Power Supply transmitter 2
30   Vcc1 +3.3 V Power Supply 2
31 LVTTL-I LPMode Low Power Mode  
32   GND Ground 1
33 CML-I Tx3p Transmitter Non-Inverted Data Input  
34 CML-I Tx3n Transmitter Inverted Data Output  
35   GND Ground 1
36 CML-I Tx1p Transmitter Non-Inverted Data Input  
37 CML-I Tx1n Transmitter Inverted Data Output  
38   GND Ground 1






























1. Module circuit ground is isolated from module chassis ground within the module. GND is the symbol for signal and supply (power) common for QSFP modules.
2. The connector pins are each rated for a maximum current of 500mA.


ModSelL Pin

The ModSelL is an input pin. When held low by the host, the module responds to 2-wire serial communication commands. The ModSelL allows the use of multiple QSFP modules on a single 2-wire interface bus. When the ModSelL is “High”, the module will not respond to any 2-wire interface communication from the host. ModSelL has an internal pull-up in the module.


ResetL Pin

Reset. LPMode_Reset has an internal pull-up in the module. A low level on the ResetL pin for longer than the minimum pulse length (t_Reset_init) initiates a complete module reset, returning all user module settings to their default state. Module Reset Assert Time (t_init) starts on the rising edge after the low level on the ResetL pin is released. During the execution of a reset (t_init) the host shall disregard all status bits until the module indicates a completion of the reset interrupt. The module indicates this by posting an IntL signal with the Data_Not_Ready bit negated. Note that on power up (including hot insertion) the module will post this completion of reset interrupt without requiring a reset.


LPMode Pin

E-link QSFP+ eSR4 operate in the low power mode (less than 1.5 W power consumption) This pin active high will decrease power consumption to less than 1W.


ModPrsL Pin

ModPrsL is pulled up to Vcc on the host board and grounded in the module. The ModPrsL is asserted “Low” when the module is inserted and deasserted “High” when the module is physically absent from the host connector.


IntL Pin


IntL is an output pin. When “Low”, it indicates a possible module operational fault or a status critical to the host system. The host identifies the source of the interrupt by using the 2-wire serial interface. The IntL pin is an open collector output and must be pulled up to Vcc on the host board.




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