Series 2280 Precision Measurement DC Power Supplies Reference Manual Section 2: General operation077085501 / February 2015 2-3REMOTE LEDindicatorIlluminates when the instrument is controlled through a remoteinterface.LAN LED indicator Illuminates when the instrument is connected to a local area network(LAN).Front panelbinding postsPositive, negative, and ground output binding posts for outputconnections.Rear-panel overviewThe rear panel of the Series 2280 is shown below; descriptions follow the figure.Figure 2: Series 2280 rear panelLAN port Supports full connectivity on a 10 Mbps or 100 Mbps network. TheSeries 2280 is an LXI version 1.4 Core 2011 compliant instrumentthat supports TCP/IP and complies with IEEE Std 802.3 (ethernetLAN). See LAN communication (on page 2-43).USB port USB-B connection for communication, control, and data transfer.For details, see USB communications (on page 2-55).Power module The power module contains the AC line receptacle, the power linefuse, and the line voltage selector switch. For safety precautionsand other details, see Line fuse replacement (on page A-1) andPower the instrument on and off (on page 2-31).