Warning:Configure the hardware settings before the device is installed.1. Refer to the safety section of the IED.2. Switch off the IED. Disconnect the power and all connections.3. Before removing the front cover, take precautions to prevent electrostatic discharge damage according tothe ANSI/ESD-20.20 -2007 standard.4. Wear a 1 MΩ earth strap and connect it to the earth (ground) point on the back of the IED.E010195. Lift the upper and lower flaps. Remove the six screws securing the front panel and pull the front paneloutwards.P543i/P545i Chapter 22 - CommunicationsP54x1i-TM-EN-1 547