Dell Latitude CPx H - Manual (Page 84)

Figure 4. Attaching an External Keyboard
NOTE: If the computer is in suspend mode or suspend-to-disk mode when you attach an external
keyboard, the device is recognized immediately by the computer when it resumes normal operation.
You can use the computer's keyboard and an external keyboard at the same time. When you attach a
keyboard to the computer, the embedded numeric keypad is automatically disabled.
On an external keyboard, the key acts the same way as the key on the computer’s
keyboard (if the External Hot Key option is enabled in the System Setup program).
You can also connect an external keyboard to the C/Port Family APR or the C/Dock Family Expansion
Station.
Keypad
You can attach a PS/2-compatible external numeric keypad to the computer's mini-DIN keypad connector.
NOTE: If the computer is in suspend mode or suspend-to-disk mode when you attach an external
keypad, the device is recognized immediately by the computer when it resumes normal operation.
When you attach a numeric keypad to the computer, the embedded numeric keypad is automatically
disabled. The indicators on the integrated keyboard track the operation of an external numeric keypad.
You can also connect an external keypad to the C/Port Family APR or C/Dock Family Expansion Station.
Mouse
You can attach a PS/2-compatible mouse to the computer's mini-DIN mouse connector, as shown in Figure
5.
Figure 5. Connecting an External Mouse