FTLF1436P4BCV Finisar Compatible 25GBASE-LR SFP28 10km

EdgeOptic's FTLF1436P4BCV compatible is a Finisar-coded dual-rate 25GBASE-LR SFP28 transceiver built on the EdgeOptic 25G-SFP28-10 multi-vendor optical platform. It carries the Finisar FTLF1436P4BCV identity in EEPROM, so the host recognizes it as the original Finisar module and brings the port up without manual override. The module reaches 10 km on a single-mode fiber pair and operates at both Ethernet line rates the FTLF1436P4BCV supports.

The Finisar FTLF1436P4BCV is a dual-rate optic, designed for Ethernet links at both 10.31 Gbps and 25.78 Gbps. That lets one part serve a 10GBASE-LR port today and a 25GBASE-LR port after a switch upgrade, without swapping the optic. BCL, BCV, PCL, and PCV are variant designations in the FTLF1436P4 25G LR SFP28 series; the BCV is one of the dual-rate variants. The host port sets the operating rate, so confirm the switch port is configured for 10G or 25G to match the link on the far end.

Optically the module uses a 1310 nm DML transmitter and a PIN photodiode receiver inside the SFP28 form factor. Transmit power runs from −7 to +2 dBm and receiver sensitivity is rated at −12 dBm, with a +3 dBm overload point and an extinction ratio of at least 3.5 dB. EdgeOptic specifies a 5 dB link budget, which covers a 10 km SMF span with standard connector and splice losses. The 25GBASE-LR transmission follows IEEE 802.3cc. The optic carries no built-in forward error correction, so the host switch supplies RS(528,514) FEC when a 25G link requires it. Verify the host RS-FEC setting against the chassis transceiver table during commissioning, and confirm both ends of the link run a matching configuration.

The module connects through a duplex LC/UPC interface and operates across the commercial range of 0 to 70 °C, drawing up to 1.2 W from a single +3.3 V supply. Digital optical monitoring reports real-time transmit power, receive power, temperature, bias current, and supply voltage, giving a network team the same diagnostic visibility as the original Finisar optic. The dual-rate capability suits mixed 10G and 25G access and aggregation links, data center site interconnects, and metro segments up to 10 km.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms, the FTLF1436P4BCV compatible is CE and RoHS certified and meets the SFP28 MSA. It ships next business day from EU stock with a lifetime warranty. For help confirming the FTLF1436P4BCV fits your switch port, contact our sales team.