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The 400GBASE-SR8 module supports link lengths of up to 100m over multimode fiber (MMF) with MTP/MPO-16 connector. It is compliant to IEEE 802.3bs protocol and 400GAUI-8/CEI-56G-VSR-PAM4 standard. The 400 Gigabit Ethernet signal is carried over eight wavelengths. Multiplexing and Demultiplexing of the eight wavelengths are managed within the device.
Note: The FS P/N is changed from QSFPDD-SR8-400G to QDD-SR8-400G, but the product is the same. Only the FS P/N has been changed.
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Center Wavelength | 850nm | 850nm | 1310nm | 1310nm | 1310nm | 1310nm |
Connector | MTP/MPO-16 | MTP/MPO-16 | MTP/MPO-8 MTP/MPO-12(8 of the 12 Fibers Used) | MTP/MPO-8 MTP/MPO-12(8 of the 12 Fibers Used) | Duplex LC | MTP/MPO-8 MTP/MPO-12(8 of the 12 Fibers Used) |
Cable Distance (Max.) | 70m/100m@MMF (with Host FEC) | 100m@MMF (with Host FEC) | 500m@SMF (with Host FEC) | 500m@SMF (with Host FEC) | 2km@SMF (with Host FEC) | 2km@SMF (with Host FEC) |
Modulation | 8x 50G PAM4 | 8x 50G PAM4 | 8x 50G PAM4 | 8x 50G PAM4 | 8x 50G PAM4 | 8x 50G PAM4 |
DSP | Inphi DSP | Inphi DSP | Broadcom 7nm DSP | Broadcom 7nm DSP | Inphi DSP | Inphi DSP |
Power Consumption | ≤10W | ≤10W | ≤10W | ≤10W | ≤10W | ≤10W |
Transmitter Type | VCSEL | VCSEL | DFB | DFB | CWDM EML | EML |
Protocols | QSFP-DD MSA, CMIS Rev4.0, OIF 56G PAM4, IEEE 802.3cd | OSFP MSA, CMIS Rev4.1, OIF 56G PAM4, IEEE 802.3bs | QSFP-DD MSA, CMIS Rev4.1, OIF 56G PAM4, 100G Lambda MSA, IEEE 802.3bs | OSFP MSA, CMIS 4.0, IEEE 802.3bs | QSFP-DD MSA, CMIS Rev4.1, OIF 56G PAM4, 100G Lambda MSA, IEEE 802.3bs | QSFP-DD MSA, CMIS Rev4.1, OIF 56G PAM4, 100G Lambda MSA, IEEE 802.3bs |
Application | Data Center 400G to 8x50G Breakout | Data Center 400G to 8x50G Breakout | Data Center 800G to 2x400G Breakout 400G to 4x100G Breakout | Data Center 800G to 2x400G Breakout 400G to 4x100G Breakout | Data Center | Data Center |
