FTLC1154SDPL Finisar Compatible 100m Parallel 10km,OTU4/100GBASE-LR4 QSFP28 Optical Transceiver

FTLC1154SDPL is the multirate (S variant) version of Finisar's 100GBASE-LR4 QSFP28 transceiver. Unlike the Ethernet-only FTLC1154RDPL (R variant), this module supports both 100G Ethernet at 103.1 Gbps and OTU4 at 111.81 Gbps. This EDGE compatible module matches the original FTLC1154SDPL specifications and is built to the same MSA standards. It operates over duplex single-mode fiber at four LAN-WDM wavelengths (1295.56, 1300.05, 1304.58, and 1309.14 nm), reaching up to 10 km with a minimum optical link budget of 6.3 dB per IEEE 802.3ba.

The module uses EML transmitters and PIN photodiode receivers. In Ethernet mode, four lanes run at 25.78125 Gbps each for 103.1 Gbps aggregate. In OTU4 mode, lanes run at 27.95 Gbps each for 111.81 Gbps aggregate per ITU-T G.709. DDM/DOM provides real-time readings of TX/RX optical power, laser bias current, temperature, and supply voltage. Maximum power consumption is 3.5 W from a single 3.3 V supply. Operating temperature range is 0 to 70 °C.

As a QSFP28 MSA-compliant module, the FTLC1154SDPL is compatible with platforms that accept third-party optics. For 100G Ethernet, it works in Cisco Nexus and Catalyst, Juniper MX and QFX, Arista 7000 series, and other standard switches. For OTU4, it is used in telecom and service provider platforms including Cisco NCS 1004 and NCS 2000, Juniper PTX routers, and OTN equipment from Ciena, Infinera, and ADVA. The module operates at the rate configured by the host port.

The FTLC1154SDPL and FTLC1154RDPL share the same optical interface: same wavelengths, link budget, reach, power consumption, and form factor. The difference is protocol support. The R variant handles 100G Ethernet only, while the S variant also supports OTU4 for optical transport networks. On a 100GE link, the S variant is fully interoperable with the R variant at the opposite end. For OTU4 links, both ends must use S-variant or OTU4-capable modules.

Our compatible FTLC1154SDPL is CE and RoHS certified, QSFP28 MSA-compliant, and conforms to IEEE 802.3ba and ITU-T G.709. Before delivery, every module undergoes optical parameter measurement, connector cleanliness inspection, and EEPROM data validation testing.

For volume pricing, lead times, or technical questions about the FTLC1154SDPL, contact our sales team. We can help match the right module to your platform and fiber plant.