The Cisco GLC-EX-SMD 1000BASE-EX SFP Transceiver Module provides long-range Gigabit Ethernet over single-mode fiber, delivering up to 40 km at 1310 nm with an LC duplex connector. It is hot-swappable, supports Digital Optical Monitoring (DOM/DDM), and is compatible with Cisco switches and routers that have SFP ports for plug-and-play deployment. Common deployments include enterprise networks, data centers, telecommunications systems, and campus fiber backbones needing 1 Gbps links over single-mode fiber, with an operating temperature range of 0°C to 70°C.
