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Cisco Meraki MA-QSFP-40G-LR4 CWDM 40G QSFP+ Transceiver 40GBASE-LR4

Basic Information
Place of Origin: China
Brand Name: OLKOPTO
Certification: CE, RoHS, FCC, FDA, UL, EMC, ISO9001
Model Number: OLSQxx4XL-CD10
Minimum Order Quantity: 1 pc
Price: negotiable
Packaging Details: 4pcs/ tray, individual package
Delivery Time: 3-6 working days
Payment Terms: T/T
Supply Ability: 7k-10k per month
Product Name: 40G QSFP+ LR4 Data Rate: 41.2 Gb/s
Form Factor: QSFP+ Wavelength: CWDM 1271,1291,1311,1331nm
Reach: 10 Km Transmitter Power: -7 ~ +2 DBm
Sensitivity: < -11.5 DBm DOM: YES
Weight: 0.09 Kg Operating Temp: : 0°C To 70°C
High Light:

CWDM 40G QSFP+ Transceiver


10km 40G QSFP+ Transceiver


Cisco Meraki MA-QSFP-40G-LR4

Cisco Meraki MA-QSFP-40G-LR4 Compatible 40GBASE-LR4 QSFP+ Optics (SMF, CWDM 1271~1331nm, LC, DDM)


40G QSFP+ LR4 10km


This 40GBASE-LR4 QSFP+ transceiver is compatible with Cisco Meraki network equipment and equivalent to Meraki MA-QSFP-40G-LR4. It is programmed and tested to work with Meraki data center switches, routers, NICs and other optical transport devices in 40G Ethernet and high-performance computing networks application. It provides an ideal replacement to OEM transceiver at far less price. This MA-QSFP-40G-LR4 equivalent contains a LC Duplex connector for the optical interface and a 38-pin connector for the electrical interface.



• Functionally identical to Meraki MA-QSFP-40G-LR4
• High Channel Capacity: 40 Gbps per optics
• Up to 10km links on single mode fiber
• 4 CWDM channels 1271, 1291,1311 and 1331nm
• Electrically hot-swappable
• Compliant with IEEE 802.3ba 40GBASE-LR4
• Power dissipation < 3.5 W
• Supports Digital Diagnostics Monitoring
• RoHS6 Compliant

Recommended Operating Conditions and Power Supply Requirements

Parameter Symbol Min. Typical Max Unit Note
Operating Case Temperature TOP 0   70  
Power Supply Voltage VCC 3.1 3.3 3.47 V  
Data Rate, each Lane     10.3125   Gb/s  
Control Input Voltage High   2   VCC V  
Control Input Voltage Low   0   0.8 V  
Link Distance with G.652 D     10 km  



1. Compliant with 40G Ethernet. Compatible with 1/10 Gigabit Ethernet and 1/2/4/8/10G Fibre Channel.

2. Tested with a PRBS 231-1 test pattern.

3. Per 40GBASE-LR4, IEEE 802.3ba.


Optical Characteristics (TOP(C) = 0 to 70 , VCC = 3.13 to 3.47 V)

Parameter Symbol Min Typical Max Unit Notes
Wavelength Assignment L0 1264.5 1271 1277.5 nm  
L1 1284.5 1291 1297.5 nm  
L2 1304.5 1311 1317.5 nm  
L3 1324.5 1331 1337.5 nm  
Side Mode Suppression Ratio SMSR 30     dB  
Total Average Launch Power PT     8.3 dBm  
Average Launch Power, each Lane PAVG -7   2.3 dBm  
Optical Modulation Amplitude (OMA), each Lane POMA -4   3.5 dBm 1
Difference in Launch Power between any Two Lanes (OMA) Ptx,diff     6.5 dB  
Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each Lane   -4.8     dBm  
TDP, each Lane TDP     2.6 dB  
Extinction Ratio ER 3.5     dB  
Relative Intensity Noise RIN     -128 dB/Hz 12dB reflection
Optical Return Loss Tolerance TOL     20 dB  
Transmitter Reflectance RT     -12 dB  

Transmitter Eye Mask Definition

{X1, X2, X3, Y1, Y2, Y3}

  {0.25, 0.4, 0.45, 0.25, 0.28, 0.4}    
Average Launch Power OFF Transmitter, each Lane Poff     -30 dBm  
Damage Threshold, each Lane THd 3.4     dBm 2
Total Average Receive Power       8.3 dBm  
Average Receive Power, each Lane   -13.7   2.3 dBm  
Receiver Reflectance RR     -26 dB  
Receiver Sensitivity (OMA), each Lane SEN     -11.5 dBm  
Stressed Receiver Sensitivity (OMA), each Lane       -9.6 dBm 3
Difference in Receive Power between any Two Lanes (OMA) Prx,diff     7.5 dB  
LOS Assert LOSA -30     dBm  
LOS Deassert LOSD     -14 dBm  
LOS Hysteresis LOSH   1   dB  
Receiver Electrical 3 dB upper Cutoff Frequency, each Lane FC     12.3 GHz  
Conditions of Stress Receiver Sensitivity Test (Note 5)
Vertical Eye Closure Penalty, each Lane     1.9   dB  
Stressed Eye J2 Jitter, each Lane     0.3   UI  
Stressed Eye J9 Jitter, each Lane     0.47   UI  


1. Even if the TDP < 0.8 dB, the OMA min must exceed the minimum value specified here.

2. The receiver shall be able to tolerate, without damage, continuous exposure to a modulated optical input signal having this power level on one lane. The receiver does not have to operate correctly at this input power.

3. Measured with conformance test signal at receiver input for BER = 1x10-12.

4. MVertical eye closure penalty and stressed eye jitter are test conditions for measuring stressed receiver sensitivity. They are not characteristics of the receiver.




IEC/EN 61000-4-2, IEC-60825
FDA 21CFR 1040.10 and 1040.11



1. How about the warranty ?

All of our products are 3 years warranty (The return and change service within 1 year, repair within 2 years)


2. What is your terms of delivery?

EXW, FOB, DAP ... is available, you can contact with us for more details

Contact Details

WhatsApp : +8618695187695