Chapter 1. Introduction6 PACSystems* RX3i PROFINET IO-Scanner User Manual GFK-2737F1.3.1 LEDs on the PROFINET Scanner ModuleLEDs provide an immediate visual indication of the operational state of the PNS and port link status. TheLEDs and their operation are described in Chapter 2 LED Operation and Connector Details.1.3.2 SD Card SlotThe SD Card Slot supports an SD or SDHC card. It can be used to transfer the IO-Device Name to anotherPROFINET Scanner Module unit without a configuration tool such as Proficy Machine Edition.1.3.3 PushbuttonThe pushbutton adjacent to the USB port is reserved for future use.1.3.4 USB PortThe USB Port is used for installing new firmware using the WinLoader tool.1.3.5 Ethernet Port ConnectionsEach port on an RX3i PNS operates independently, so devices that operate at different speeds and/orduplex modes may be attached to the ports. By default, all ports, including empty, unconfigured SFPcages, are set for Automatic, which enables auto negotiation for the widest range of options supported bythe port.Figure 2: Ethernet Port Connectors on IC695PNS001Connections to the PROFINET Scanner can be made using standard Cat 5e/6 Ethernet cables. Differentdevices on the same network can be connected using the multiple ports on the RX3i PNS (Figure 2).For other options, refer to Chapter 4, the section Adding and Configuring an Ethernet Port.