Cisco QSFP28 Optical Transceiver QSFP-100G-LR4-S Compatible 100GBASE-LR4

Basic Information
Place of Origin: China
Brand Name: OLKOPTO
Certification: CE, RoHS, FCC, FDA, UL, EMC, ISO9001
Model Number: OLSQXXTXL-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: 100G QSFP28 1310nm 10km Data Rate: 100 Gb/s
Wavelength: 1295~1310 Nm Distance: 10 Km
Compatibility: Cisco Form Factor: QSFP28
Fiber Type: SMF DOM: YES
Connector: LC Duplex Environment: Operating: 0°C To 70°C
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Cisco QSFP28 Optical Transceiver


100GBASE-LR4 QSFP28 Optical Transceiver



Cisco QSFP-100G-LR4-S Compatible 100GBASE-LR4 QSFP28 Optical Transceiver (SMF, 1295~1310nm, LC, 10km, DOM)


100G QSFP28 1310nm 10km


This 100GBASE-LR4 QSFP28 transceiver is compatible with Cisco networking equipment and equivalent to Cisco QSFP-100G-LR4-S. It is suitable for long distances and offers a highly cost-effective way to establish a 100 Gigabit link connectivity between devices using QSFP28 ports. The compatible QSFP-100G-LR4-S converts 4 input channels of 25Gb/s electrical data to 4 channels of LAN WDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission. The transceiver supports link lengths of up to 10km over single-mode fiber (SMF) at the wavelength specified between 1295nm and 1310nm using a duplex LC connector.



• Functionally identical to Cisco QSFP-100G-LR4-S
• Up to 26Gb/s data rate per channel
• QSFP28 MSA compliant
• Up to 10km on single mode Fiber
• Single 3.3V power supply
• Maximum power consumption 3.5W
• Duplex LC optical connector
• Built-in digital diagnostic function

Absolute Maximum Ratings

Parameter Symbol Min. Max. Unit Note
Supply Voltage Vcc -0.5 3.6 V  
Storage Temperature TS -40 85 °C  
Relative Humidity RH 0 85 %  
Rx Damage Threshold,per Lane PRdmg 5.5   dBm  

Note: Stress in excess of the maximum absolute ratings can cause permanent damage to the transceiver.


Optical Characteristics (Top=0~70, Vcc=3.14~3.47V)

(Tested under recommended operating conditions,unless otherwise noted)

Parameter Symbol Unit Min Typ Max Notes
Signaling rate, each lane   Gb/s 25.78125 ±100 ppm 1
Four Lane Wavelength Range λ1 nm 1294.53 1295.56 1296.59  
λ2 1299.02 1300.05 1301.09  
λ3 1303.54 1304.58 1305.63  
λ4 1308.09 1309.14 1310.19  
Total launch power Pout dBm     10.5  
Average launch power, each lane Pavg dBm -4.5   4.5 2,7
Optical modulation amplitude, each lane (OMA) OMA dBm -1.3   4.5  
Extinction ratio ER dB 4      
Side-mode suppression ratio SMSR dB 30      

Average launch power of OFF

transmitter, per lane

POFF dBm     -30  
Optical return loss tolerance   dB     20  
Transmitter reflectance   dB     –12  
Transmitter eye mask {X1, X2, X3, Y1, Y2, Y3}     {0.25, 0.4, 0.45, 0.25, 0.28, 0.4} 3
Receive Rate for Each Lane   Gb/s 25.78125 ±100 ppm 4
Four Lane Wavelength Range λ1 nm 1294.53 1295.56 1296.59  
λ2 1299.02 1300.05 1301.09  
λ3 1303.54 1304.58 1305.63  
λ4 1308.09 1309.14 1310.19  
Overload Input Optical Power Pmax dBm 5.5      

Average Receive Power for Each


Pin dBm -10.6   4.5 5,7
Receiver Sensitivity(OMA)per lane Psens1 dBm     -11.3  
Stressed Sensitivity(OMA) per lane Psens2 dBm     -6.8 6
Return Loss RL dB -26      
Receiver Electrical 3dB upper cutoff frequency, per lane   GHz     31  
Los De-Assert Pd dBm     -11.6  
Los Assert Pa dBm -23.6      
Loss Hysteresis Pd-Pa dBm   2    


1. Transmitter consists of 4 lasers operating at 25.78Gb/s each.

2. Minimum value is informative.

3. Hit ratio 5x10-5.

4. Receiver consists of 4 photodetectors operating at 25.78Gb/s each.

5. Minimum value is informative, equals min TxOMA with infinite ER and max channel insertion loss.

6. SRS is measured with vertical eye closure penalty of 1.8 dB max, J2 of 0.30 UI, and J9 of 0.47 UI.

7. Power value and power accuracy are with all channels on.



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