[shortdesc] GBIC) transceiver module, 1000Base-SX, up to 0.6 miles, GigE, LC/PC multi-mode, 850 nm [/shortdesc] [specifications] Specifications GLC-SX-MMD Description GLC-SX-MMD is a SFP multimode fiber compatible with the IEEE 802.3z 1000BASE-SX standard, with DOM Product Type Transceiver Connector Dual LC/PC Form Factor SFP Transmit Power Range (dBm) -3 to -9.5 Receive Power Range (dBm) 0 to -17 Maximum Channel insertion loss in dB (by fiber type) 2.4 (FDDI-grade)2.6 (OM1)3.4 (400/400)3.6 (OM2)5 (OM3)5 (OM4)5 (OM5) Transmit and Receive Wavelength Range (nm) 770 to 860 (850nm) DOM Yes Temperature Range -5°C to 85°C (23 to 185°F) Wavelength (nm) Fiber Type Core Size (μm) Modal Bandwidth(MHz* Km) Operating Distance (m) 850 MMF 62.5 160 (FDDI-grade) 220 (722 ft) 200 (OM1) 275 (902 ft) 50 400 (400/400) 500 (1,640 ft) 500 (OM2) 550 (1,804 ft) 2000 (OM3) 1000 (3281 ft) 4700 (OM4) 1000 (3281 ft) 4700 (OM5) 1000 (3281 ft) [/specifications] The Industry Standard for MMF Gigabit Networks The Cisco GLC-SX-MMD is a trusted and widely deployed SFP transceiver designed for Gigabit Ethernet over multimode fiber (MMF). Operating at 850 nm, it supports distances of up to 550 meters over OM2/OM3 fiber, making it the go-to solution for short-range fiber links inside buildings and campus networks. A key advantage of this module is its DOM (Digital Optical Monitoring) support—signaled by the “D” in its part number. DOM provides real-time monitoring of optical power levels, voltage, and temperature, helping IT teams proactively diagnose link issues and maintain uptime. This genuine Cisco SFP is fully hot-swappable, drawing low power, and supports a commercial extended temperature range (–5 °C to 85 °C). Compliant with IEEE 802.3z and SFP MSA, it ensures seamless compatibility across Cisco Catalyst, Nexus, ASR, and ISR devices. Technical Features Speed: 1 Gbps (1000BASE-SX) Reach: Up to 550 m over OM3 MMF (OM2 ≈ 220 m) Wavelength: 850 nm VCSEL Connector: LC duplex Diagnostics: DOM (Tx/Rx power, voltage, temperature) Power Consumption: ≤ 1W Hot-Swappable: Yes — tool-less insertion/removal Operating Temp: –5 °C to 85 °C (commercial extended) Compliance: IEEE 802.3z, SFP MSA, Class 1 Laser Ideal For: Enterprise wiring closets, campus switches, short-range server uplinks For complete technical details, check the Specifications tab above.
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