FTLX8574D3BCL Finisar Compatible 10GBASE-SR SFP+ Transceiver

Finisar's FTLX8574D3BCL is a 10GBASE-SR SFP+ transceiver rated for 850nm multimode fibre. The BCL suffix designates this as a 10G-only datacom variant, distinct from the BCV (dual-rate 10G/1G) and other lettered suffixes that Finisar uses for OEM-coded versions: -CS for Cisco, -DL for Dell, -FC and -QL for various integrators. EdgeOptic's compatible replacement matches the FTLX8574D3BCL specifications and ships with Finisar-recognised EEPROM encoding.

850 nm VCSEL source, PIN photodiode receiver, duplex LC/UPC connectors. The 6.1 dB optical budget per IEEE 802.3ae supports 300 m on OM3 and 400 m on OM4. DDM per SFF-8472 provides real-time optical power, temperature, and bias current monitoring.

Finisar (now part of Coherent, following the II-VI acquisition in 2019) originally sold the FTLX8574D3BCL through channel partners and as an OEM component embedded in third-party equipment. The part number appears in compatibility matrices for Cisco, Dell, HPE, Juniper, and Arista platforms. Because the module follows SFF-8431/SFF-8432 MSA standards and carries standard Finisar vendor ID in its EEPROM, it is accepted on most platforms with open or MSA-compatible optics policies. Platforms with strict qualification lists may require vendor-specific EEPROM coding.

Suffixed variants like FTLX8574D3BCL-PS, -H2, -FC, -N1, and -QL are region- or OEM-specific versions of the same base transceiver. The optical hardware and electrical interface are identical across all suffix variants; only the EEPROM vendor field and product identifier coding differs. EdgeOptic can provide EEPROM coding to match any of these suffix variants on request, so a single compatible module covers the full range of FTLX8574D3BCL derivatives. This is relevant for mixed-vendor environments where Finisar optics are installed across different switch platforms that each expect a different EEPROM code.

All units are CE/RoHS certified and undergo optical parameter measurement against IEEE 802.3ae specifications, connector endface inspection under magnification, and EEPROM data integrity verification before dispatch. For compatibility questions, suffix variant requests, or volume pricing, contact our sales team.