The PC Card eject button ejects the PC Card from the PC Card slot.
3
Headphone jack
The headphone jack, a 1/8 inch (3.5mm) diameter jack, is where you connect stereo headphones or external speakers.
4
Line-in jack
The line-in jack, a 1/8 inch (3.5mm) diameter jack, is where you connect an external audio device.
5
Microphone jack
The microphone jack, a 1/8 inch (3.5mm) diameter jack, is where you connect a self-powered stereo microphone. Note: Do not plug any device into the microphone jack except a microphone.
6
External diskette drive connector
The external diskette drive connector allows you to connect the external diskette drive to the ThinkPad 240.
7
Security keyhole
The security keyhole is used with a mechanical lock.
8
Internal modem port
The internal modem port is used for connecting your computer to an analog telephone line. (Availability depends on model and country configuration.)
9
Power jack
The power jack is where the AC Adapter cable is connected.
10
External-monitor connector
The external-monitor connector is where you attach the external monitor.
11
Battery pack
The battery pack is a built-in power source for the computer.
12
Parallel connector
The parallel connector is where you connect a parallel-printer signal cable.
13
Serial connector
The serial connector is where you connect a 9-pin, serial-device cable.
14
Battery status lamp
The battery status lamp shows the status of the battery pack.
Suspend lamp
The suspend lamp lights when the computer is in suspend mode.