FTLX1871D3BCL Finisar Compatible 10GBASE-ZR 80km SFP+

EdgeOptic's FTLX1871D3BCL compatible is a Finisar-coded version of the EdgeOptic 10G-SFP-80 multi-vendor 10GBASE-ZR transceiver. It is a 1550 nm SFP+ optic built to drop in for the Finisar FTLX1871D3BCL, carrying multiple vendor codes from a single universal part. The module reaches 80 km over duplex single-mode fiber on a 23 dB link budget.

The transmitter is a 1550 nm cooled EML laser with output between 0 and +5 dBm. The receiver uses an APD photodiode rated to −24 dBm sensitivity, with chromatic dispersion tolerance of 1600 ps/nm. The optic supports a 1.25 to 11.32 Gbps rate range covering 10G Ethernet ZR, Gigabit Ethernet, 1G through 10G Fibre Channel, and SDH STM-64 at 9.95 Gbps. DDM/DOM diagnostics report live temperature, voltage, bias current, and optical power. The module runs on +3.3V and connects through a duplex LC interface. Typical deployments are metro and long-haul Ethernet links over dark or leased single-mode fiber where the span runs past the 40 km reach of an ER optic.

The FTLX1871D3BCL is the no-CDR variant of the Finisar FTLX1871 series, rated by Finisar at a standard −5 to +70 °C case temperature. Where the original FTLX1871D3BCL relies on host-side clock and data recovery for SONET/SDH jitter compliance, the M3 variant carries internal CDR instead. The EdgeOptic compatible is built to the 10G-SFP-80 specification with a 0 to 70 °C operating range. For deployments with strict CDR jitter requirements or temperature thresholds, contact our sales team to confirm the build matches the specific requirement.

The module is CE marked, Class 1 laser safe per IEC 60825-1 and FDA, RoHS compliant, and built to the SFF-8431 SFP+ MSA. Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For project sizing or variant questions, contact our sales team.