The Cisco GLC-SX-MM 1000BASE-SX SFP Transceiver is a compact Gigabit Ethernet optical module designed for high-speed data transmission over multimode fiber networks. Built in the industry-standard Small Form-Factor Pluggable (SFP) format, this module supports the 1000BASE-SX Gigabit Ethernet standard defined by IEEE 802.3z, providing reliable and efficient fiber connectivity for enterprise networks, campus infrastructures, and data center environments.Operating at a wavelength of 850 nm, the transceiver is optimized for short-distance communication over multimode fiber (MMF). It supports a data transmission rate of 1 Gbps and can achieve distances of up to 550 meters, depending on the type and quality of the installed multimode fiber. The module uses a duplex LC optical connector, ensuring compatibility with widely deployed fiber optic cabling systems.
The GLC-SX-MM transceiver supports hot-swappable installation, allowing it to be inserted or removed from compatible Cisco switches, routers, and other networking devices without powering down the host system. This capability simplifies maintenance, upgrades, and network expansion. Engineered for dependable performance, the module provides stable optical output, low signal loss, and reliable Gigabit Ethernet connectivity for demanding network applications.