GLOBALfiber QDD-400G-LR8 is a 400G QSFP-DD LR8 transceiver for single-mode data centre links from 2 m to 10 km. Eight optical wavelength lanes are combined onto a duplex LC connection, and digital diagnostics provide access to module operating parameters.
Available coding and compatibility
Available coding: Arista, Cisco, Generic, Juniper. Provide the equipment model, port configuration and software version so support can be checked. Available coding does not confirm compatibility with every model or operating mode. For other coding requirements, contact salg@globalfiber.no.
Key specifications
| Specification | Details |
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| Product number | QDD-400G-LR8 |
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| Form factor | QSFP-DD |
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| Capacity | 400G |
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| Applications | 400GBASE-LR8 Ethernet; data centre links |
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| Reach and fiber | 2 m–10 km over single-mode fiber |
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| Nominal wavelength | 1310 nm nominal; eight wavelength lanes |
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| Optical connectors | Duplex LC |
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| Diagnostics | Digital optical monitoring (DOM/DDM) |
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Installation requirements
Check the host cooling arrangement, power budget and port configuration before installation. Verify the fiber connection and FEC settings for the intended link.