FE260

The Function-Extension FE260 has three different features:

• Ex-separation of serial interface, digital outputs as well as
  power supply for  an EK230 or  EK260  volume  corrector
  which is  installed  inside a hazardous area
• Internal interface  for plugging in a modem or for connecting an
  external modem 
• Power supply for EK230 or EK260 volume correctors