Dell Precision T5400 User's Guide - Page 23

6 network adapter To attach your computer to a network or broadband device, connector connect one end of a network cable to either a network jack or your network or broadband device. Connect the other end of the network cable to the network adapter connector on your computer. A click indicates that the network cable has been securely attached. Do not plug a telephone cable into the network connector. On computers with an additional network connector card, use the connectors on the card and on the back of the computer when setting up multiple network connections (such as a separate intra- and extranet). It is recommended that you use Category 5 wiring and connectors for your network. If you must use Category 3 wiring, force the network speed to 10 Mbps to ensure reliable operation. 7 network activity light Flashes a yellow light when the computer is transmitting or receiving network data. A high volume of network traffic may make this light appear to be in a steady "on" state. 8 serial connectors Connect a serial device, such as a handheld device, to the (2) serial port. If ne1cessary, the address for this port can be modified through "System Setup" on page 89. 9 PS/2 keyboard connector If you have a standard PS/2 keyboard, plug it into the purple keyboard connector. If you have a USB keyboard, plug it into a USB connector. 10 USB 2.0 connectors (5) It is recommended that you use the front USB connectors for devices that you connect occasionally, such as flash memory keys or cameras, or for bootable USB devices. Use the back USB connectors for devices that typically remain connected, such as printers and keyboards. About Your Computer 23