6 • vacon installationTel. +358 (0)201 2121 • Fax +358 (0)201 212 20532. Machine to machine (Industrial environment, fast communication)2.4 Connections and WiringThe Ethernet board supports 10/100Mb speeds in both Full and Half-duplex modes. Theboards must be connected to the Ethernet network with a shielded CAT-5e cable. Use a so -called crossover cable (at least CAT-5e cable with STP, Shielded Twisted Pair) if you want toconnect the Ethernet option board directly to the master appliance.Use only industrial standard components in the network and avoid complex structures tominimize the length of response time and the amount of incorrect dispatches.More information on Ethernet can be found at www.odva.org.PLC or Programmable ControllerReal-Time Control-Start/Stop, Direction,...-Reference-FeedbackPLC or Programmable ControllerPLC or Programmable Controller-Master-Start/Stop, Direction, ..-Reference-FeedbackEthernet switch