Cisco Part Number: GLC-FE-100EX is a Cisco 100BASE-EX for Fast Ethernet SFP Ports
The Cisco 100BASE-X Small Form-Factor Pluggable (SFP) device, is an input/output device designed for Fast Ethernet ports, dual-rate Fast/Gigabit Ethernet ports, or Gigabit Ethernet ports of a Cisco switch or router. It establishes a connection between the port and the fiber cabling network.
Key features include:
The Cisco 100BASE-EX SFP operates on ordinary SMF link spans up to 40 km long.
GLC-FE-100EX modules operate in Fast Ethernet or dual-rate Fast/Gigabit Ethernet ports of Cisco switches and routers.