Hirschmann M-SFP-LX/LC Compatible 1000BASE-LX 20km SFP

EdgeOptic's M-SFP-LX/LC compatible is a Hirschmann-coded version of the EdgeOptic 1.25G-SFP-20D multi-vendor 1000BASE-LX 20 km transceiver. The OEM Hirschmann M-SFP-LX/LC (part number 943 015-001) carries a 0 to +60 °C operating range and 11 dB optical budget per OEM reseller datasheets; the EdgeOptic compatible runs to 0 to +70 °C with a 15 dB link budget under the underlying 1.25G-SFP-20D specification, so it fully covers the OEM application envelope on Hirschmann RailSwitch, MICE, MACH, OCTOPUS, and BAT switches that accept this SFP.

Optically the module follows IEEE 802.3z 1000BASE-LX on 9/125 µm single-mode fiber via duplex LC connectors at 1310 nm, with a 1260 to 1360 nm wavelength band. Transmit power is −9 to −3 dBm and receiver sensitivity is −24 dBm with a −3 dBm overload limit, giving 15 dB of link budget for the rated 20 km reach. The transceiver runs Gigabit Ethernet at 1.25 Gbps with 1.0625 Gbps Fibre Channel framing also supported per the underlying spec, draws power from a +3.3 V single supply, and exposes DDM/DOM telemetry for real-time TX power, RX power, bias current, supply voltage, and temperature readings through the standard SFP two-wire interface.

When sourcing this Hirschmann SFP, confirm the trailing suffix on the original ordering code. The standard M-SFP-LX/LC covered on this page is the commercial-temperature build; the M-SFP-LX/LC-EEC is a separate Hirschmann SKU rated for −40 to +85 °C aimed at harsh-environment rail, substation, and outdoor industrial sites. The M-SFP-LX+/LC is also distinct, an extended-reach variant in the Hirschmann catalog. EdgeOptic stocks compatibles for the EEC variant separately, so engineers replacing units in mixed installations should match the suffix on the original part rather than substitute across temperature classes.

This M-SFP-LX/LC compatible is one EEPROM build of the EdgeOptic 1.25G-SFP-20D platform, a single 1000BASE-LX 1310 nm 20 km SMF transceiver that ships under multiple vendor codings. The hardware is INF-8074i SFP MSA compliant, hot-pluggable, CE marked, RoHS compliant, and Class 1 laser safe per IEC 60825-1 and FDA 21 CFR 1040, so the EdgeOptic catalog covers the same optical build under Cisco, Juniper, Arista, HPE, MikroTik, Brocade, PLANET, Check Point, and other vendor ordering codes for 1000BASE-LX 20 km SMF.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For mixed Hirschmann standard / EEC sourcing, ordering questions, or volume quotes, contact our sales team.