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QSFP-DD 2x400G LR4 PAM4 CWDM4 10km Dual duplex LC SMF FEC Optical Transceiver

QSFP-DD 2x400G LR4 PAM4 CWDM4 10km Dual duplex LC SMF FEC Optical Transceiver

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Part Number: QSFP-DD-800G-2LR4L-FM

QSFP-DD 2x400G LR4 PAM4 CWDM4 lanes MUX/DEMUX design 10km Optical Transceiver Module (1271nm 1291nm 1311nm 1331nm Dual duplex LC SMF 10km with FEC DDM)

F-tone QSFP-DD 2x400G LR4 transceiver module is designed for 800 Gigabit Ethernet links over 10km single mode fiber. This transceiver consists of two transmitter/receiver units, with each operating on a set of 4 wavelengths on the ITU G.694.2 CWDM grid near 1300nm. The electrical interface of the module is compliant with the 800GAUI-8 interface as defined by IEEE 802.3ck and compliant with QSFP-DD MSA.

Product Details

F-tone P/N QSFP-DD-800G-2LR4L Vendor Name F-tone
Form Factor QSFP-DD Max Data Rate 850Gbps(8x 106.25Gbps)
Wavelength 1271nm, 1291nm, 1311nm, 1331nm Max Distance 10km
Modulation Format PAM4 Host Required FEC
Connector Dual Duplex LC Voltage Supply 3.3V
Cable Type SMF DDM Support Yes
Transmitter Type CWDM EML Receiver Type PIN
TX Power -2.7~+5.1dBm Receiver Sensitivity ˉ-9dBm
Operation Temperature 0 to 70～C (32 to 158～F) Maximum Power <>
Protocols QSFP-DD MSA, IEEE 802.3bs Application 800G Ethernet, Data Center Interconnect, Infiniband Interconnects


This product belongs to F-tone Networks' optical components product line. For detailed specifications, please contact our sales team. Thank you!
Important Notice:
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.

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Power and Wavelength Testing

Test the signal delivering strength and wavelength, to ensure the signal decoding capacity of the receiver, and the wavelength remains consistent from the transmitter to the receiver.

Power and Wavelength Testing

Traffic Testing

Test the bit error rate and packet loss rate, to make them meet the corresponding standards and ensure the performance of transceivers.

Traffic Testing

Optical Performance Testing

Test the transceivers' eye diagram situation, receiving sensitivity, extinction ratio, wavelength, light-emitting, light-receiving, current and voltage, to ensure the signal quality, stability and reliability of the transmission.

Optical Performance Testing

End Face Testing

Check the end face of the transceivers and keep them clean for more stable data transmission, better performance, and durability.

End Face Testing

Various Switch Tests

Every module is quality tested for compatibility in the multi-brand switches environment, guaranteeing flawless operations.

Various Switch Tests

About F-tone Networks

F-tone Networks is now a world leader in development of optical transceivers and provide a wide range of high-speed optical solutions for optical communication networking, especially for AI, Data Center, enterprise data networking, Industry, aerospace, mining, shipbuilding, railway, metro, long haul transport networking, and mobile access networking applications
F-tone Networks invested in foundational photonics technologies and extensive product development and engineering with global presence in many area also.

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