Lenovo ThinkPad 380ED ThinkPad 380 and 380D User's Guide - Page 117

Attaching an External Keyboard You can connect an external keyboard to your computer through the keyboard/mouse connector 1 (available separately as an option). Note: The external keyboard must be connected through the The computer enters suspend mode keyboard/mouse connector. It will not work if it is connected when the LCD is closed. If you want directly to the computer. to use the computer with the LCD closed, set the suspend option in the When the external keyboard is attached, the following keys are not ThinkPad Features program so the computer does not enter suspend available: mode when the LCD is closed. Numeric keypad on the computer keyboard. Be careful not to insert the connector External numeric keypad. ( 2 ) upside down. You should use the numeric keypad on the external keyboard. ThinkPad Features program: Page 28. When you attach the external keyboard, turn off the computer, attach the keyboard to the keyboard/mouse connector ( 1 ), and then attach the keyboard/mouse connector to the computer ( 2 ). Chapter 6. Installing and Removing Options 97