Nokia (Alcatel-Lucent) SFP-25G-LR Compatible 25GBASE-LR SFP28 10 km

EdgeOptic's SFP-25G-LR compatible is a Nokia (Alcatel-Lucent)-coded dual-rate 10G/25G LR SFP28 transceiver and the Nokia-coded variant of the EdgeOptic 25G-SFP28-10 multi-vendor 25GBASE-LR catalog. Nokia (Alcatel-Lucent) catalogs this optic as SFP-25G-LR for use on Nokia SR OS service routing and IP routing platforms. Nokia also references the optic by its hardware catalog ordering code 3HE14835AA in some Nokia parts databases; verify the applicable 3HE code against the Nokia product catalog for the target chassis and software release. The module carries 10 Gigabit Ethernet (10.31 Gbps) and 25 Gigabit Ethernet (25.78 Gbps) over a single G.652 SMF pair at 1310 nm, terminated with a duplex LC/UPC connector.

The transmitter is a DML driving the 1310 nm LC duplex; the receiver is a PIN photodiode. Optical specifications: TX output power −7 to +2 dBm, RX sensitivity −12 dBm, RX overload +3 dBm, minimum extinction ratio 3.5 dB, and a 5 dB optical link budget over the 10 km specified reach on G.652 SMF. Real reach on a long link is loss-limited by installed fiber attenuation, splice loss, and connector loss, so on spans above 8 km calculate end-to-end insertion loss against the 5 dB budget rather than the nominal 10 km figure. The module operates 0 to 70 °C on a +3.3 V single supply with 1.2 W maximum power consumption.

At 25G operation the host MAC performs RS(528,514) RS-FEC; the module itself has no built-in FEC. Nokia SR OS configures FEC per port and per platform, and behavior varies across SR OS software releases. The FEC mode must agree on both link partners or the link comes up down without optical errors, so verify the per-interface FEC configuration on both ends before commissioning. At 10G operation the optic behaves as a standard 10GBASE-LR module and host-side FEC is not required, but the host port must support dual-rate selection between 10G and 25G on its SFP28 cage. DDM diagnostics report TX power, RX power, module temperature, laser bias, and supply voltage in real time per SFF-8472 and are accessible through Nokia SR OS port diagnostics.

The module ships with Nokia-recognized EEPROM coding for clean registration under Nokia SR OS. SFP-25G-LR targets Nokia service routing and IP routing platforms with 25G SFP28 cages, including the Nokia 7750 SR, 7250 IXR, and 7950 XRS families. Per-platform and per-SR-OS-release coverage and the applicable Nokia 3HE hardware catalog code can change over time, so verify the specific chassis, line card, and SR OS release against the Nokia SR OS hardware compatibility guide for your platform before ordering. Typical applications: 25G service-provider edge uplinks on Nokia 7750 SR, 25G aggregation on Nokia 7250 IXR, and metro 25G long-reach connections on Nokia routing platforms. Conforms to IEEE 802.3cc, SFF-8431, SFF-8432, SFF-8472, and the SFP28 MSA.

Compliance: CE, Class 1 FDA and IEC 60825-1 laser safety, RoHS. Ships next business day from EU stock with a lifetime warranty. Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. For volume pricing, custom EEPROM coding, or compatibility verification on a specific Nokia SR OS platform, contact our sales team.