Dell OptiPlex 755 - Manual (Page 20)

20
Quick Reference Guide
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:
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.
4 power connector Insert the power cable.
5 back panel
connectors Plug serial, USB, and other devices into the appropriate
connectors. See "Back Panel Connectors" on page 20.
6 card slots (4) Access connectors for any installed PCI or PCI Express cards,
PS/2 connector, eSATA connector, etc.
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 "System Setup Options" in the User’s Guide.
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