Transceivers Type
QSFP-DD Optical Transceiver
Specifications
Cisco QDD-2X400G-FR4 Compatible 2x 400GBASE FR4 QSFP-DD PAM4 Optical Transceiver Module (1271nm, 1291nm, 1311nm, 1331nm, 2km, Dual Duplex CS, SMF, 0℃ to +70℃, DDM)
Cisco QDD-2X400G-FR4 Compatible 2x 400G FR4 QSFP-DD 800G transceiver module supports a max data rate of 850Gbps. It enables the fiber link of 2km over single-mode fiber (SMF) with dual duplex CS connectors. The 800 Gigabit Ethernet signal is carried over 4 wavelengths at 1271nm, 1291nm, 1311nm, and 1331nm. F-tone manufactured 2x 400GBASE FR4 QSFP-DD complies with IEEE 802.3cu-2021, IEEE P802.3ck D3.0, QSFP-DD MSA HW Rev 6.01, CMIS Rev 5.0. DDM (digital diagnostics monitoring) function is supported on the 800G fiber optic transceiver to achieve real-time operating parameters monitoring. Adopting the Pulse-amplitude Modulation (PAM4) modulation, the FR4 QSFP-DD achieves 800 Gigabit Ethernet through 8x 106.25 PAM4 Retimed 2x400GAUI-4 C2M electrical interface. The 800G FR4 QSFP-DD is widely used for gigabit Ethernet, data centers, and 800G to 2x 400G applications.
Model Contrast Table
| Part Number |
FT-QSFP-DD-800G-SR8 |
FT-QSFP-DD-800G-2VR4 |
FT-QSFP-DD-800G-DR8 |
FT-QSFP-DD-800G-2DR4 |
| Data Rate |
800G |
800G |
800G |
800G |
| Optical Connector |
Single MPO-16/APC |
Dual MPO-12/APC |
Single MPO-16/APC |
Dual MPO-12/APC |
| Cable Type |
MMF |
MMF |
SMF |
SMF |
| Wavelength |
850nm |
850nm |
1310nm |
1310nm |
| Reach |
50m |
50m |
500m |
500m |
| Modulation |
PAM4 |
PAM4 |
PAM4 |
PAM4 |
| Max Power Consumption |
< 16W |
< 16W |
< 16.5W |
< 18W |
| Application |
800G to 800G, 800G to 2x400G breakout |
800G to 800G, 800G to 2x400G breakout |
800G to 800G, 800G to 2x400G breakout, 800G to 8x100G breakout |
800G to 800G, 800G to 2x400G breakout |
| Matching Downlink Transceivers |
FT-QSFP-DD-SR4 (400G) FT-Q112-400G-SR4 FT-OSFP-400G-SR4 |
FT-QSFP-DD-SR4 (400G) FT-Q112-400G-SR4 FT-OSFP-400G-SR4 |
FT-QSFP-DD-DR4 (400G) FT-Q112-400G-DR4 FT-OSFP-400G-DR4 FT-QSFP28-DR1 |
FT-QSFP-DD-DR4 (400G) FT-Q112-400G-DR4 FT-OSFP-400G-DR4 |
| Part Number |
FT-QSFP-DD-800G-2XDR4 |
FT-QSFP-DD-800G-2FR4 |
FT-QSFP-DD-800G-2LR4 |
|
| Data Rate |
800G |
800G |
800G |
|
| Optical Connector |
Dual MPO-12/APC |
Dual Duplex CS/UPC |
Dual Duplex LC/UPC |
|
| Cable Type |
SMF |
SMF |
SMF |
|
| Wavelength |
1310nm |
1271nm, 1291nm, 1311nm and 1331nm |
1271nm, 1291nm, 1311nm and 1331nm |
|
| Reach |
2km |
2km |
10km |
|
| Modulation |
PAM4 |
PAM4 |
PAM4 |
|
| Max Power Consumption |
< 18W |
< 18W |
≤ 18W |
|
| Matching Transceivers |
FT-QSFP-DD-DR4+ (400G) FT-Q112-400G-DR4+ FT-QSFP28-FR1 |
FT-QSFP-DD-FR4 (400G) FT-Q112-400G-FR4 FT-OSFP-400G-FR4 |
FT-QSFP-DD-LR4 (400G) |
|
| Application |
800G to 800G, 800G to 2x400G breakout, 800G to 8x100G breakout |
800G to 800G, 800G to 2x400G breakout |
800G to 800G, 800G to 2x400G breakout |
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.
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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.
Traffic Testing
Test the bit error rate and packet loss rate, to make them meet the corresponding standards and ensure the performance of transceivers.
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.
End Face Testing
Check the end face of the transceivers and keep them clean for more stable data transmission, better performance, and durability.
Various Switch Tests
Every module is quality tested for compatibility in the multi-brand switches environment, guaranteeing flawless operations.