Lightwin LWO-SFP-85-SX Industrial 1.25G SFP Transceiver, 850nm, 550m, LC Duplex, Multimode, DDM

Short-range fiber links in industrial networks often fail due to temperature extremes and unreliable optics. The Lightwin LWO-SFP-85-SX solves this with a rugged 1.25 Gbps SFP module built for -40°C to 85°C operation. It delivers stable 1000BASE-SX connectivity over multimode fiber up to 550 meters, using an 850nm VCSEL laser and LC duplex connector. Digital diagnostics give real-time monitoring of link health, making it ideal for factory floors, outdoor cabinets, and other harsh environments.

Who is it for

Network engineers and system integrators deploying Gigabit Ethernet in industrial settings—manufacturing plants, transportation systems, utilities, and campus backbones. It suits any application needing a dependable multimode SFP that withstands wide temperature swings and provides diagnostic visibility.

Main features

• Industrial temperature range: -40°C to 85°C for reliable operation in extreme conditions.
• 1.25 Gbps data rate, compliant with 1000BASE-SX Ethernet standard.
• 850nm VCSEL transmitter and PIN photodiode receiver for multimode fiber.
• LC duplex connector, hot-pluggable, and MSA compliant for easy integration.
• Digital Diagnostic Monitoring (DDM/DOM) for real-time monitoring of temperature, voltage, laser bias, and optical power.
• Low power consumption (<1 W) and metal housing for EMI shielding.
• CE, FCC, and RoHS compliant.

Specifications

• Transceiver type: SFP
• Data rate: 1.25 Gbps
• Ethernet standard: 1000BASE-SX
• Wavelength: 850 nm
• Max cable distance: 550 m
• Fiber type: Multimode (MMF)
• Connector: LC Duplex
• DDM/DOM: Yes
• Operating temperature: -40°C to 85°C
• Hot-pluggable: Yes
• MSA compliant: Yes
• Transmitter: VCSEL
• Receiver: PIN photodiode
• Supply voltage: 3.3 V
• Power consumption: <1 W
• Housing: Metal
• Certifications: CE, FCC, RoHS

Tips

Pair with OM2 or better multimode fiber for full 550m reach. Use DDM monitoring via your switch or router to proactively detect link degradation. For best performance, ensure both ends use the same wavelength and fiber type.