Dell OptiPlex 320 Quick Reference Guide - Page 18

4 voltage selection switch Your computer is equipped with a manual voltage-selection switch. To avoid damaging a computer with a manual voltage-selection switch, set the switch for the voltage that most closely matches the AC power available in your location. NOTICE: In Japan, the voltage-selection switch must be set to the 115-V position. Also, ensure that your monitor and attached devices are electrically rated to operate with the AC power available in your location. 5 padlock ring Insert a padlock to lock the computer cover. 6 cover release latch Use this latch to open the computer cover. Desktop Computer - Back-Panel Connectors 1 2 34 5 6 10 1 parallel connector 2 link integrity light 7 9 8 Connect a parallel device, such as a printer, to the parallel connector. If you have a USB printer, plug it into a USB connector. NOTE: The integrated parallel connector is automatically disabled if the computer detects an installed card containing a parallel connector configured to the same address. For more information, see your online User's Guide. • Green - A good connection exists between a 10-Mbps network and the computer. • Orange - A good connection exists between a 100-Mbps network and the computer. • Off - The computer is not detecting a physical connection to the network. 18 Quick Reference Guide