AddOn - Network Upgrades JL484A-AO HP JL484A Compatible TAA 25GBase-SR SFP28 Transceiver (MMF, 850nm, 100m, LC, DOM) 25 Gbps LC

The AddOn JL484A-AO is an HP JL484A-compatible 25GBase-SR SFP28 transceiver for network teams connecting compatible equipment over multimode fiber, with an LC connector and reach up to 100 m.

Recommended For

• Data-center and enterprise network teams linking servers or switches across short runs of existing multimode fiber, where 25GbE is needed and the fiber grade supports the distance (up to 100 m on OM4).
• Network administrators connecting nearby racks or equipment rooms who already have duplex LC multimode-fiber cabling and want an optical 25GbE link rather than a copper connection.
• HPE Aruba network teams considering a JL484A-compatible optic for a supported SFP28 port, provided they verify compatibility for their exact switch model, port, and software version.

Real-World Use Scenarios

• Connect a 25GbE server NIC to a supported HPE Aruba switch over existing duplex multimode fiber—for example, to give a virtualization or storage server a higher-bandwidth network link. The link can run at 25GbE when both endpoints support it and the fiber type and distance are within range; Aruba lists up to 100 m on OM4 and 70 m on OM3 for the JL484A.
• Link two compatible switches across a short multimode-fiber run, such as between a rack’s access switch and an aggregation switch. This provides a 25GbE fiber connection where both switches have supported SFP28 ports and the installed fiber meets the reach requirements.
• Upgrade a server connection from 10GbE to 25GbE in a data-center or server-room network. With a 25GbE-capable SFP28 port at each end and suitable multimode fiber, the optic supports the faster link; application speeds still depend on the server, network configuration, and traffic.
• Reuse an existing LC multimode-fiber path for a short 25GbE link instead of installing a new cable, provided the fiber grade and distance are suitable. For the HPE JL484A reference, Aruba specifies up to 100 m on OM4 or 70 m on OM3, so check the cable type and route length before deployment.
• Check optical readings while diagnosing an intermittent or failed fiber link. The module supports digital optical monitoring, which can expose operating readings for troubleshooting; monitoring support and the readings available can vary by host platform.

Spec Summary