HP EliteBook 2540p Notebook PC - Manual (Page 12)

4. Turn the key to the 1 or 2 position (3) to secure the lock and security cable, and then remove the
key (4).
To connect an optional security cable to secure only the docking station:
1. Loop the security cable around a secured object.
2. Insert the cable lock into the security cable slot on the back of the docking station, and then lock
the cable lock.
8 Chapter 3 Using the docking station