Can you specify what exactly do you want to configure and what is your use case?1-wire readers are used only with iButton + immobilizer scenario.
Supported 1-wire devices @ https://wiki.teltonika-gps.com/view/FMB640_Accessories
More options you can have if you will use Rs232 RFID reader. More info @ https://wiki.teltonika-gps.com/view/FMB640_RS-232_and_RS-485#RS-232_modes
Immobilizer scenario @ https://wiki.teltonika-gps.com/view/FMB640_Features_settings#Authorized_driving.2FImmobilizer