Th his section e explains how w to connect t each devic ce and build the system configuratio on. 48 ７-２ B uilding t he Syste m Confi guration 1 Attach Sensor Amplifier Units to ・ the ”E3NW-ECT” Sensor Communication Unit. After attaching the Sensor Amplifier Units, connect the EtherCAT port of NJ to the “IN” side of the E3NW-ECT port with an EtherNet cable. 3 Connect the NJ to the switching hub. 4 In the same way as step 3, connect the NA to the switching hub. Connect the switching hub to the Ethernet port 1 of NA. 5 Turn ON the power supplies to the NJ, NA, E3NW-ECT, and switching hub.