Dell OptiPlex 745, Quick Reference Manual, Page: 11 / 482

Quick Reference Guide
11
Mini Tower Computer — Back-Panel Connectors
3 voltage selection switch Your computer is equipped with a manual voltage-selection switch.
To help 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:
The voltage selection switch must be set to the 115-V position even
though the AC power available in Japan is 100 V.
Also, ensure that your monitor and attached devices are electrically rated to operate
with the AC power available in your location.
4 power connector Insert the power cable.
5 back-panel connectors Plug serial, USB, and other devices into the appropriate connectors (see "Mini
Tower Computer — Back-Panel Connectors" on page 11).
6 card slots Access connectors for any installed PCI and PCI Express cards.
1 3
9 8 7
5
6
2 4
1 parallel connector 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.
2 link integrity light • 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.
• Yellow — A good connection exists between a 1-Gbps (or 1000-Mbps) network
and the computer.
• Off — The computer is not detecting a physical connection to the network.