Further information for Perle 05050272 - media converter 100 RJ45/SC single mode (20km)
05050272S-100-S1SC20U - Fast Ethernet Stand-Alone Media Converter 100Base-TX (RJ-45) [100 m/328 ft.] to 100BASE-BX 1310nm TX / 1550nm RX single fiber beach, single mode (SC) [20 km / 12.4 miles]! Order! Non-refundable!