The 10/100/1000Base-T to 1000Base-LX(SC,SM) Smart Media Converter (Part number: GST-802S) from Planet is a Media Converters. Media converter is a network device that converts communication protocols form one cable type to another type. This type of equipment is usually used in pairs to insert a fiber segment into copper networks.
10/100/1000Base-T to 1000Base-LX Smart Gigabit Converter (Single Mode)