Can I install WFT-series converters inserted into WMC chassis at one side, and use GT-series converters at opposite side, or it necessary to use WFT converters on both side? If it is possible, what fu

No, the WFT-series Converter is smart Fast Ethernet Media Converter and GT-series Converter is Gigabit Ethernet Media Converter, the Fast Ethernet Media converter fiber interface cannot connect with Gigabit Ethernet Media Converter. Please use WFT-series Converter product on both sides. Then can get the smart function through it's DIP switch on the PCB board of WFT-series Converter.