Planet GT-806B15 10/100/1000Base-T to 1000Base-LX (WDM TX:1550nm, SM,15km) Media Converter* Additional GT-806A15 (WDM TX:1310nm, SM) is required to run as a pair and must connect to the GT-806B15Providing the flexibility of 10/100/1000Mbps Ethernet Media via RJ-45 port and highly stable Gigabi..