Sony PCG-GRX580P - Manual (Page 71)

To connect an external mouse or keyboard
1. Shut down the notebook before you connect or disconnect the PS/2 external mouse or keyboard connector.
2. Connect the optional port replicator to the notebook.
3. Locate the Mouse/Keyboard (PS/2) port on the port replicator identified by the / symbols.
4. Plug the mouse or keyboard connector into this port with the arrow facing upward.
Connecting External Mouse or Keyboard
Note:
See the manual that came with your PS/2 mouse or keyboard for more information on its installation and use.
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