Sony PCG-FX390P - Manual (Page 50)

Change text in this variable definition to document title.
50
Connecting an External Mouse or Keyboard
You can connect an external mouse or keyboard to the optional port replicator
using a similar type PS/2® plug or adapter. You can only connect one external
device at a time. Therefore, you cannot connect both a PS/2 mouse and PS/2
keyboard simultaneously.
To connect an external mouse or keyboard
1 Turn off your notebook.
2 Locate the mouse/keyboard port on the port replicator identified by the /
symbols.
3 Plug the mouse or the keyboard cable into this port with the arrow facing up.
4 See the manual supplied with your mouse or keyboard for more information
on its installation and use
✍
Before you connect or disconnect the mouse or keyboard, turn off the notebook.
Connecting external mouse or keyboard to port replicator