Using The System Lock Key - Lenovo ThinkPad L420 User Manual

If you use the ThinkPad Mini Dock Series 3, or the ThinkPad Mini Dock Plus Series 3, and attach a
mechanical lock with the eject button unlocked, to lock the eject button, use the system lock key. See
"Using the system lock key" on page 129.
Lenovo does not offer a mechanical lock. You will need to purchase one elsewhere. You are responsible
for evaluating, selecting, and implementing any locking device and security feature. Lenovo makes no
comments, judgments, or warranties about the function, quality, or performance of any locking device or
security features.
Attach a mechanical lock to the ThinkPad Mini Dock Plus Series 3 as follows:
Attach a mechanical lock to the ThinkPad Mini Dock Series 3 as follows:
Attach a mechanical lock to the ThinkPad Port Replicator Series 3 as follows:

Using the system lock key

The system lock key has two positions, unlocked and locked.
129
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Chapter 7 Enhancing your computer