The ET90110SM302 10/100 Mbps Single Mode Fiber Media Converter SC (30 km) lets you extend a Fast Ethernet network (10/100) over single mode fiber, at distances up to 30 km (18.6 miles). A cost-effective solution for connecting a 10/100 Mbps Ethernet (10/100Base-T) network to remote network segments over a 100Base-FX fiber backbone, the media converter is designed to offer a durable and convenient Ethernet to fiber solution, with an all-steel chassis, and simple plug-and-play installation with minimal configuration required. For added versatility, this fiber media converter supports standalone operation, or installation into the 20 Slot, 2U Rackmount Chassis (ETCHS2U). Backed by a StarTech.com 2-year warranty and free lifetime technical support. Link loss forwarding, remote monitoring of status ensures maximum up-time. Provides Ethernet to Fiber conversion as a standalone device, or can be installed into the ETCHS2U 20 slot chassis for added versatility. Rugged steel casing for durability in harsh environments.Provides connectivity to a user or network segment that is in an isolated area of a large complex or in another building altogether. Perfect for secured environments required by government agencies, where EMI is not acceptable. Connect traffic control/monitoring systems at extreme distances to the main office. Extend network connectivity to remote areas of stadiums, auditoriums or other venues. Converts 100Base-FX fiber optic signals to 10/100Base-T Ethernet over single mode fiber cable.