3. Follow the instructions that come with the option to prepare it for installation
and to connect it to the computer.
Input/Output connector descriptions
This section provides pin and other information about the I/O connectors on the
rear of your computer. Refer to “Input/Output connector locations” on page 9.
These connectors include the following:
v One mouse
v One keyboard
v One parallel
v Two serial
v One Ethernet
v Two USB
v Line in
v Line out
v Microphone
v One video (Optional multiple connectors on some models)
v One Ultra 3/160 SCSI (some models)
Mouse connector
Your computer has one mouse connector that supports a mouse or other pointing
device. The mouse connector is located on the rear of your computer, see
“Input/Output connector locations” on page 9.
Keyboard connector
Your computer has one keyboard connector. See “Input/Output connector
locations” on page 9 for its location.
Note: If you attach a standard (non-USB) keyboard to the keyboard connector, the
USB ports and devices are disabled during the power-on self-test (POST).
Parallel connector
Your computer has one parallel connector. This connector supports three standard
Institute of Electrical and Electronics Engineers (IEEE) 1284 modes of operation:
standard parallel port (SPP), enhanced parallel port (EPP), and extended capability
port (ECP).
Viewing or changing the connector assignments
Use the BIOS Setup Utility program to configure the parallel connector as
bi-directional. With this configuration, data can be read from and written to a
device. In bidirectional mode, the computer supports the ECP and EPP modes.
Do the following to view or change the parallel-connector assignment:
Chapter 5. Installing Options 45
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