Features: 
* RS-485 serial line signal repeater supports a radio link 
* Two identical RS-485 ports and a USB port (type B) 
* Manage two balanced lines and internal systems to check battery voltage, temperature and power supply voltage presence 
* Two RS-485 lines on the FMC-rep-WL: each line can be configured for polarization and/or termination, as well as providing a distributed power supply