The RS485 module is plugged directly into the MGC control unit of the MHTM™ MicroDrive barrier.
The module allows controlling of the barrier and getting feedback via serial ModBus protocol. Up to 247 barriers can be connected to a network.
The interface is galvanically isolated. It can be operated in a 2-wire (half duplex) or 4-wire configuration (full duplex).
All interface parameters can be selected via menus of the MGC control unit. Termination and bias resistors can also be switched on and off via separate menus.