The Transition Networks TN‑J4858C is a hot‑pluggable 1000Base‑SX SFP (mini‑GBIC) optical transceiver module designed for robust gigabit Ethernet networking over multimode fiber. With support for LC duplex connections and 850 nm wavelength, it delivers reliable full‑duplex performance up to 550 meters (approximately 1800 ft) using 50/125 µm or 62.5/125 µm fiber. Built to IEEE 802.3z standards and compliant with SFP Multi‑Sourcing Agreement (MSA), this module offers broad interoperability with HP ProCurve, HP EP, Aruba, and MSA‑compliant switches. The low‑power consumption (.
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