RDH90120/49800 R4A Ericsson Compatible 10/100/1000BASE-T SFP RJ45

EdgeOptic's RDH90120/49800 R4A compatible is an Ericsson-coded version of the EdgeOptic 1000M-SFP-T multi-vendor tri-speed copper SFP transceiver. R4A identifies an Ericsson revision or release marker on this ordering code, not a different rate or temperature class from the base RDH90120/49800 part number. Both codes map to the same underlying Finisar FCLF-8521-3-ER copper SFP module, which handles 10BASE-T, 100BASE-T and 1000BASE-T with automatic speed negotiation.

The RDH90120/49800 R4A is positioned as an Ericsson Redback SFP-GE-T class copper transceiver, matched to Ericsson and Redback equipment that accepts SFP-GE-T class copper optics. Confirm the target line card's transceiver table before ordering to match the exact SFP-GE-T variant the platform requires.

The module uses the standard SFP form factor with an RJ45 connector over Category 5 twisted pair cabling, reaching up to 100 meters. It covers the tri-speed 10BASE-T, 100BASE-T and 1000BASE-T envelope with automatic negotiation, and the underlying Finisar FCLF-8521-3-ER design is rated up to a 1.25 Gb/s line rate for bidirectional data links. The fully metallic enclosure limits EMI, and power dissipation is low at 1.05 W typical.

The RDH90120/49800 R4A follows the INF-8074i SFP MSA for mechanical and electrical interfaces, and it operates over the standard 0 to 70 degrees C temperature range at plus 3.3V. Digital diagnostic monitoring is available through the SFF-8472 management interface, giving visibility into transceiver operating parameters. CE and RoHS compliance apply.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms, this module ships next business day from EU stock with a lifetime warranty. For project quantity pricing or an alternative vendor coding, contact our sales team.