Appendix C—Optional Communication CardsPower Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com 221Appendix C—Optional Communication CardsEthernet Card (C445XC-E)IntroductionThe C445 Ethernet option card (C445XC-E) supports both theModbus TCP and EtherNet/IP protocols. This card containstwo Ethernet ports but only one IP address. The ports act asa two-port Ethernet switch, allowing the user to optionallydaisy chain modules together in a Ring or Linear network,instead of running each module back to a centralizedEthernet switch in a Star Network. Three supported Ethernetnetwork topologies for the C445XC-E card are shown below.Figure 128. C445 Ethernet Star Network ConnectionExampleFigure 129. C445 Ethernet Ring Network ConnectionExampleFigure 130. C445 Ethernet Linear Network ConnectionExampleInstalling the Ethernet Communication CardThe Ethernet Communication Card is installed directly intothe C445 Base Control Module. To install the card, follow thestep by step directions:1. Remove the blank cover with the unit not powered.2. Locate the communication card slot3. Plug the Ethernet communication card into location.Only remove or plug in modules with the unit notpowered. Do not hot swap communication modules.Figure 131. Installing the Ethernet Communication Card
