Parameters of 100Mbps Multimode Fiber Optic Transceiver

A 100Mbps multimode fiber optic transceiver (100BASE-FX SFP) typically operates at 1310nm over multimode fiber, supporting distances up to 2 km with LC connectors and full-duplex Fast Ethernet transmission.Key SpecificationsData Rate and StandardSupports 100Mbps Fast Ethernet according to the IEEE 802.3u 100BASE-FX standard .Uses 4B/5B encoding for data transmission over fiber . Wavelength and Fiber TypeOperates at a nominal wavelength of 1310nm.Designed for multimode fiber (MMF), typically OM1, OM2, or OM3 depending on distance requirements . Transmission DistanceMaximum link distance is up to 2 km over standard multimode fiber .Shorter distances (100–500 m) are common for industrial or campus networks depending on fiber type and quality. Connector and Form FactorUses LC-style connectors for fiber interface .Available in SFP (Small Form-factor Pluggable) modules, allowing hot-swappable deployment in switches, routers, and media converters . Duplex and Signal ConversionSupports full-duplex operation, converting electrical Ethernet signals to optical signals and vice versa .The SFP module interfaces with the switch/router via a 100Mbps electrical port, while the fiber carries the optical signal to the remote device . Performance and ReliabilityProvides strong EMI immunity and stable performance in electrically noisy environments, making it suitable for industrial, transportation, and outdoor campus networks .Bit error rate (BER) is typically very low, ensuring reliable data transmission over the specified distance. Deployment ConsiderationsCompatible with legacy Fast Ethernet infrastructure and can be used to extend network reach beyond copper limitations.Ideal for environments where electrical interference or grounding differences may affect copper Ethernet connections . Summary A 100BASE-FX SFP transceiver is a compact, flexible, and reliable solution for 100Mbps optical connectivity over multimode fiber, offering extended reach, EMI resistance, and easy integration into existing network equipment . It remains a practical choice for industrial, campus, and legacy network deployments where fiber optic links are preferred.