Further information for Perle 05050352 - Media Converters 10/100 TP / ST singlemode (up 120k)
SS-100-05050352 S2ST120 - Fast Ethernet Stand-Alone Media Converter 100BASE-TX (RJ-45) [100 m/328 ft.] to 100BASE-ZX 1550nm single mode (ST) [120 km/74.6 miles]! Order! Non-refundable!