SIP-2COMMUNICATION NODE TYPE SIP-2 44/145USER GUIDE - Rev. 3 (January 2018)LAN:The main IP address and its mask may be obtained automatically through the DHCP client,which is called dynamic or NON-static configuration. The user may activate this featurethrough the CheckBox type control with the Static IP label. When the control is ticked, theequipment uses the data provided by the user.IP Alias:The equipment is capable of responding to IP addresses different from the main one if theyhave been previously added through the Add CommandButton.5.4 SERIAL PORT CONFIGURATIONThe Serial menu provides access to the equipment serial port configuration screen. Thisport is configurable by software for RS-232 interface or RS-485 (2-wire or 4-wire) interface.FIGURE 23 Serial port (COM) configuration pageThe screen related to the Serial menu has two well differentiated sections, which aredescribed below. See section 1.2 for more general information about the portinterconnection.Physical:• #. It establishes the equipment physical port number. Port 1 for port COM1.• Interface. It establishes the type of the interface: RS-232 or RS-485 with 2-wire or4-wire.