1 of 13WX-501-0531 • 01.22Using the Click 301The Click 301 serial to Ethernet converter changes half-duplex two-wire RS-232 and RS-485 communication toEthernet and vice versa. Use this device in a cabinet to transfer data from a sensor to your computer or trafficoperations center via a wired network connection.Physical FeaturesThe Click 301 has several communication ports, as well as features for configuration (see the figure below).ModeSwitchLED IndicatorsRS-485ConnectorRS-232ConnectorEthernetConnectorT-BusConnectorTOPFRONTCommunication PortsThe back of the Click 301 features a 5-position connector that plugs into a T-bus connector and provides powerand RS-485 communication to the device. It also passes RS-485 communication from the module to all otherdevices on the T-bus.The top of the device has a pluggable screw terminal block that features -485, one +485 and two ground screwterminals for wiring RS-485 communication. This screw terminal block can be removed for easy preinstallation0531