User's Manual

Back to Contents Page

Connecting External Devices: Dell™Latitude™L400User'sGuide

About the I/O Connectors

You can connect external devices to the input/output (I/O) connectors on the back and left side of the computer (see Figure 1). The computer's

basic input/output system (BIOS) detects the presence of the external devices when you boot (start) or reboot your computer. You can connect to

the Dell Latitude L400 Advanced Port Replicator (APR) through the docking connector on the bottom of the computer.

Figure 1.I/OConnectorsOntheComputer

Mouse, Keyboard, and External Numeric Keypad

You can attach a Personal System (PS)/2-compatible device such as a mouse, 101- or 102-key keyboard, or external numeric keypad to the mini-

DIN PS/2 connector.

Mouse

About the I/O Connectors

AC Adapter

Mouse, Keyboard, and External Numeric Keypad

Audio Devices

USB Devices

Modem Connector

Parallel Devices

NIC Connector

Advanced Port Replicator

External Media Options

External Monitor

NOTES: Some external devices require you to load software called device drivers into system memory before using the devices. These

device drivers help your computer recognize the external device and direct its operation. Instructions for installing this software are

usually included in the upgrade kits.

The APR provides the same I/O connectors as your computer and, in addition, provides a serial port and one additional PS/2 port. For

more information on the APR, see the documentation that came with it.

USB connector

Speakers and headphones (line-out/speaker-out) jack

Microphone (MIC IN) jack

Fan intake/exhaust vents

Air inlet

PS/2 (mini-DIN) connector

AC adapter connector

External media bay connector

Parallel connector

Video connector

Modem connector

NIC connector

External media bay

NOTE: If the computer is in suspend (or standby) or suspend-to-disk (S2D) (or hibernate) mode when you attach a mouse, you can use

the mouse when the computer resumes normal operation. However, programs that were already running may need to be restarted to

recognize the mouse. If the computer is not in suspend (or standby) or S2D (or hibernate) mode when you attach the mouse, you must

reboot the computer to use the mouse.